California is a state in the Pacific Region of the United States. With 39.6 million residents, California is the most populous U. S. the third-largest by area. The state capital is Sacramento; the Greater Los Angeles Area and the San Francisco Bay Area are the nation's second and fifth most populous urban regions, with 18.7 million and 9.7 million residents respectively. Los Angeles is California's most populous city, the country's second most populous, after New York City. California has the nation's most populous county, Los Angeles County, its largest county by area, San Bernardino County; the City and County of San Francisco is both the country's second-most densely populated major city after New York City and the fifth-most densely populated county, behind only four of the five New York City boroughs. California's $3.0 trillion economy is larger than that of any other state, larger than those of Texas and Florida combined, the largest sub-national economy in the world. If it were a country, California would be the 5th largest economy in the world, the 36th most populous as of 2017.
The Greater Los Angeles Area and the San Francisco Bay Area are the nation's second- and third-largest urban economies, after the New York metropolitan area. The San Francisco Bay Area PSA had the nation's highest GDP per capita in 2017 among large PSAs, is home to three of the world's ten largest companies by market capitalization and four of the world's ten richest people. California is considered a global trendsetter in popular culture, innovation and politics, it is considered the origin of the American film industry, the hippie counterculture, fast food, the Internet, the personal computer, among others. The San Francisco Bay Area and the Greater Los Angeles Area are seen as global centers of the technology and entertainment industries, respectively. California has a diverse economy: 58% of the state's economy is centered on finance, real estate services and professional, scientific and technical business services. Although it accounts for only 1.5% of the state's economy, California's agriculture industry has the highest output of any U.
S. state. California is bordered by Oregon to the north and Arizona to the east, the Mexican state of Baja California to the south; the state's diverse geography ranges from the Pacific Coast in the west to the Sierra Nevada mountain range in the east, from the redwood–Douglas fir forests in the northwest to the Mojave Desert in the southeast. The Central Valley, a major agricultural area, dominates the state's center. Although California is well-known for its warm Mediterranean climate, the large size of the state results in climates that vary from moist temperate rainforest in the north to arid desert in the interior, as well as snowy alpine in the mountains. Over time and wildfires have become more pervasive features. What is now California was first settled by various Native Californian tribes before being explored by a number of European expeditions during the 16th and 17th centuries; the Spanish Empire claimed it as part of Alta California in their New Spain colony. The area became a part of Mexico in 1821 following its successful war for independence but was ceded to the United States in 1848 after the Mexican–American War.
The western portion of Alta California was organized and admitted as the 31st state on September 9, 1850. The California Gold Rush starting in 1848 led to dramatic social and demographic changes, with large-scale emigration from the east and abroad with an accompanying economic boom; the word California referred to the Baja California Peninsula of Mexico. The name derived from the mythical island California in the fictional story of Queen Calafia, as recorded in a 1510 work The Adventures of Esplandián by Garci Rodríguez de Montalvo; this work was the fifth in a popular Spanish chivalric romance series that began with Amadis de Gaula. Queen Calafia's kingdom was said to be a remote land rich in gold and pearls, inhabited by beautiful black women who wore gold armor and lived like Amazons, as well as griffins and other strange beasts. In the fictional paradise, the ruler Queen Calafia fought alongside Muslims and her name may have been chosen to echo the title of a Muslim leader, the Caliph. It's possible.
Know ye that at the right hand of the Indies there is an island called California close to that part of the Terrestrial Paradise, inhabited by black women without a single man among them, they lived in the manner of Amazons. They were robust of body with great virtue; the island itself is one of the wildest in the world on account of the craggy rocks. Shortened forms of the state's name include CA, Cal. Calif. and US-CA. Settled by successive waves of arrivals during the last 10,000 years, California was one of the most culturally and linguistically diverse areas in pre-Columbian North America. Various estimates of the native population range from 100,000 to 300,000; the Indigenous peoples of California included more than 70 distinct groups of Native Americans, ranging from large, settled populations living on the coast to groups in the interior. California groups were diverse in their political organization with bands, villages, on the resource-rich coasts, large chiefdoms, such as the Chumash and Salinan.
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Anthony J. Portantino is an American politician serving in the California State Senate. A Democrat, he represents the 25th Senate District which encompasses portions of the San Fernando and San Gabriel Valleys. Prior to his election to the State Senate, Portantino served in the California State Assembly from 2006 to 2012, representing the 44th Assembly District, he won election to the State Senate in 2016 after defeating Republican Los Angeles County Supervisor Mike Antonovich. Portantino served two terms on the La Cañada Flintridge City Council, from 1999 until 2006. There, he was mentored by Carol Liu, who endorsed him to succeed her in the California State Assembly. Portantino wrote a law that made it illegal to open carry an unloaded gun in California. Portantino's professional experience includes working in the art department and as Property Master with the American Playhouse, was Production Designer on Grizzly Adams: The Mark of the Bear and Art Director on Unsolved Mysteries. At the request of the Screen Actors Guild in 2010, Portantino proposed an anti-gatecrashing law that would make party crashing a misdemeanor with punishments being up to six months in jail, or a $1,000 fine, or both.
He said. He introduced legislation to remove tattoos from victims of forced prostitution. In the 2009-2010 legislative session, Portantino served on these committees: Select Committee on Aerospace Governmental Organization Committee, California General Assembly Higher Education Committee, California General Assembly Human Services Committee, California General Assembly Labor and Employment Committee, California General Assembly Select Committee on Preservation of California's Entertainment Industry Revenue and Taxation Committee, California General Assembly Sponsored legislation Portantino's sponsored legislation includes: AB 52 - Umbilical Cord Blood Collection Program AB 56 - Health care coverage: mammographies AB 169 - Communicable disease: involuntary testing 2011-2012 In the 2011-2012 legislative session, Portantino served on these committees: Accountability and Administrative Review Committee, California General Assembly Higher Education Committee, California General Assembly Human Services Committee, California General Assembly Master Plan for Higher Education Transportation Committee, California General Assembly https://ballotpedia.org/Anthony_Portantino,_Jr.
After his term finished in the California State Assembly, Portantino stated that he would run for Congress against David Dreier though the district had yet to be drawn. He contemplated a run against Senator Carol Liu in State Senate District 25 but opted against it, citing personal reasons. In 2013, Portantino began campaigning to fill the seat of Senator Liu, who will be forced out of the District 25 position by term limits in 2016. Legislative scorecard Capitol Weekly, California's major weekly periodical covering the state legislature, publishes an annual legislative scorecard to pin down the political or ideological leanings of every member of the legislature based on how they voted on an assortment of bills in the most recent legislative session; the 2009 scores were based on votes on 19 bills, but did not include how legislators voted on the Proposition 1A. On the scorecard, "100" is a perfect liberal score and "0". On the 2009 Capitol Weekly legislative scorecard, Portantino ranked as a 94.
Official website Official Campaign web site
Population density is a measurement of population per unit area or unit volume. It is applied to living organisms, most of the time to humans, it is a key geographical term. In simple terms population density refers to the number of people living in an area per kilometer square. Population density is population divided by total land water volume, as appropriate. Low densities may lead to further reduced fertility; this is called the Allee effect after the scientist. Examples of the causes in low population densities include: Increased problems with locating sexual mates Increased inbreeding For humans, population density is the number of people per unit of area quoted per square kilometer or square mile; this may be calculated for a county, country, another territory or the entire world. The world's population is around 7,500,000,000 and Earth's total area is 510,000,000 square kilometers. Therefore, the worldwide human population density is around 7,500,000,000 ÷ 510,000,000 = 14.7 per km2. If only the Earth's land area of 150,000,000 km2 is taken into account human population density is 50 per km2.
This includes all continental and island land area, including Antarctica. If Antarctica is excluded population density rises to over 55 people per km2. However, over half of the Earth's land mass consists of areas inhospitable to human habitation, such as deserts and high mountains, population tends to cluster around seaports and fresh-water sources. Thus, this number by itself does not give any helpful measurement of human population density. Several of the most densely populated territories in the world are city-states and dependencies; these territories have a small area and a high urbanization level, with an economically specialized city population drawing on rural resources outside the area, illustrating the difference between high population density and overpopulation The potential to maintain the agricultural aspects of deserts is limited as there is not enough precipitation to support a sustainable land. The population in these areas are low. Therefore, cities in the Middle East, such as Dubai, have been increasing in population and infrastructure growth at a fast pace.
Cities with high population densities are, by some, considered to be overpopulated, though this will depend on factors like quality of housing and infrastructure and access to resources. Most of the most densely populated cities are in Southeast Asia, though Cairo and Lagos in Africa fall into this category. City population and area are, however dependent on the definition of "urban area" used: densities are invariably higher for the central city area than when suburban settlements and the intervening rural areas are included, as in the areas of agglomeration or metropolitan area, the latter sometimes including neighboring cities. For instance, Milwaukee has a greater population density when just the inner city is measured, the surrounding suburbs excluded. In comparison, based on a world population of seven billion, the world's inhabitants, as a loose crowd taking up ten square feet per person, would occupy a space a little larger than Delaware's land area; the Gaza Strip has a population density of 5,046 pop/km.
Although arithmetic density is the most common way of measuring population density, several other methods have been developed to provide a more accurate measure of population density over a specific area. Arithmetic density: The total number of people / area of land Physiological density: The total population / area of arable land Agricultural density: The total rural population / area of arable land Residential density: The number of people living in an urban area / area of residential land Urban density: The number of people inhabiting an urban area / total area of urban land Ecological optimum: The density of population that can be supported by the natural resources Demography Human geography Idealized population Optimum population Population genetics Population health Population momentum Population pyramid Rural transport problem Small population size Distance sampling List of population concern organizations List of countries by population density List of cities by population density List of city districts by population density List of English districts by population density List of European cities proper by population density List of United States cities by population density List of islands by population density List of U.
S. states by population density List of Australian suburbs by population density Selected Current and Historic City, Ward & Neighborhood Density Duncan Smith / UCL Centre for Advanced Spatial Analysis. "World Population Density". Exploratory map shows data from the Global Human Settlement Layer produced by the European Commission JRC and the CIESIN Columbia University
California State Senate
The California State Senate is the upper house of the California State Legislature, the lower house being the California State Assembly. The State Senate convenes, along with the State Assembly, at the California State Capitol in Sacramento. Due to a combination of the state's large population and small legislature, the State Senate has the largest population per state senator ratio of any state legislative house. In the United States House of Representatives, California is apportioned 53 U. S. Representatives, each representing 704,566 people, while in the California State Senate, each of the 40 State Senators represents 931,349 people; this means that California State Senators each represent more people than California's members of the House of Representatives. In the current legislative session, Democrats hold a two-thirds supermajority of 28 seats, while Republicans hold 10 seats. There are two vacancies. Prior to 1967, state legislative districts were drawn according to the "Little Federal Model" by which Assembly seats were drawn to according to population and Senate seats were drawn according to county lines.
The guidelines were that no Senate district would include more than three counties and none would include less than one complete county. This led to the situation of a populous county such as Los Angeles County being accorded the same number of state senators as less populous counties such as Alpine County. In Reynolds v. Sims, the United States Supreme Court compelled all states to draw up districts with equal population; as such, boundaries were changed to comply with the ruling. The Lieutenant Governor is the ex officio President of the Senate, may only cast a vote to break a tie; the President pro tempore is elected by the majority party caucus, followed by confirmation of the full Senate. Other leaders, such as the majority and minority leaders, are elected by their respective party caucuses according to each party's strength in the chamber; the current President pro tem is Democrat Toni Atkins of San Diego. The Minority Leader is Republican Shannon Grove of Bakersfield; each state senator represents a population equivalent to the State of Delaware.
As a result of Proposition 140 in 1990 and Proposition 28 in 2012, members elected to the legislature prior to 2012 are restricted by term limits to two four-year terms, while those elected in or after 2012 are allowed to serve 12 years in the legislature in any combination of four-year State Senate or two-year State Assembly terms. Members of the State Senate serve four-year terms; every two years, half of the Senate's 40 seats are subject to election. This is in contrast to the State Assembly, in which all 80 seats in the Assembly are subject to election every two years; the red tones of the California State Senate Chamber are based on the British House of Lords, outfitted in a similar color. The dais rests along a wall shaped like an "E", with its central projection housing the rostrum; the Lower tier dais runs across the entire chamber, there are several chairs and computers used by the senate officers, the most prominent seat is reserved for the secretary who calls the roll. The higher tier is smaller, with three chairs, the two largest and most ornate chairs are used by the President Pro Tempore and the Lieutenant Governor.
The third and smallest chair, placed in the center, is used by the presiding officer and is sat in as the president is expected to stand. There are four other chairs flanking the dais used by the highest non-member officials attending the senate, a foreign dignitary or state officer for example; each of the 40 senators is provided a desk and two chairs, one for the senator, another for guests or legislative aides. Every decorating element is identical to the Assembly Chamber. Along the cornice appears a portrait of George Washington and the Latin quotation: senatoris est civitatis libertatem tueri; the Secretary, the Sergeant-at-Arms, the Chaplain are not members of the Legislature.: elected in a special election: elected in a recall election Current committees include: Senate Committee on Agriculture Senate Committee on Appropriations Senate Appropriations Subcommittee on Fiscal Oversight and Bonded Indebtedness Senate Committee on Banking and Financial Institutions Senate Committee on Budget and Fiscal Review Senate Budget Subcommittee No. 1 on Education Senate Budget Subcommittee No. 2 on Resources Senate Budget Subcommittee No. 3 on Health and Human Services Senate Budget Subcommittee No. 4 on State Administration and General Government Senate Budget Subcommittee No. 5 on Corrections Senate Committee on Business and Economic Development Senate Committee on Education Senate Education Subcommittee on Sustainable School Facilities Senate Committee on Elections and Constitutional Amendments Senate Committee on Energy and Communications Senate Committee on Environmental Quality Senate Committee on Governmental Organizations Senate Committee on Governance and Finance Senate Committee on Health Senate Committee on Human Services Senate Committee on Insurance Senate Committee on Judiciary Senate Committee on Labor and Industrial Relations Senate Committee on Legislative Ethics Senate Committee on Natural Resources and Water Senate Natural Resources and Water Subcommittee on Urban Rivers Senate Committee on Public Employment and Retirement Senate Committee on Public Safety Senate Committee on Rules Senate Committee on Transportation and Housing Senate Committee on Veterans Affairs Joint Committee on Arts Joint Committee on Fairs and Classification Joint Committee on Fisher
San Gabriel Valley
The San Gabriel Valley is one of the principal valleys of Southern California, lying to the east of the city of Los Angeles. Surrounding features include: San Gabriel Mountains on the north, San Rafael Hills to the west, with Los Angeles Basin beyond; the valley derives its name from the San Gabriel River that flows southward through the center of the valley, which itself was named for the Spanish Mission San Gabriel Arcángel built in the Whittier Narrows in 1771. At one time predominantly agricultural, the San Gabriel Valley is today entirely urbanized and is an integral part of the Greater Los Angeles metropolitan area, it is one of the most ethnically diverse regions in the country. About 200 square miles in size, the valley includes thirty-one cities and five unincorporated communities. In 1886, Pasadena was the first independent incorporated city still located in Los Angeles County; the San Gabriel Valley is in Los Angeles County. The incorporated cities and unincorporated neighborhoods of the San Gabriel Valley include: Whittier, like Montebello, is considered both a San Gabriel Valley city and part of the Gateway Cities region.
An unincorporated portion of Whittier, Rose Hills, sits below the Puente Hills. Although these hills are small compared to the San Gabriel Mountains, the fact that most of the city sits around them makes Whittier a San Gabriel Valley city; this is similar to Montebello, a member of the Gateway Cities Council of Governments, despite geographically being part of the San Gabriel Valley. Claremont, Diamond Bar, La Verne, San Dimas and Walnut are adjacent to the San Gabriel Valley, although are properly considered part of the Pomona Valley, they are commonly considered part of the San Gabriel Valley; the 57 Freeway is considered the dividing line between the Pomona and San Gabriel valleys. However, for statistical and economic development purposes, the County of Los Angeles includes these six cities as part of the San Gabriel Valley; the community of El Sereno, in the city of Los Angeles, is situated at the westernmost edge of the Valley. Unofficial estimates place the combined population of the San Gabriel Valley at around 2 million—roughly a fifth of the population of Los Angeles County.
Before the arrival of the Spaniards, the land along the Rio Hondo River, a branch of the San Gabriel River, was populated by the Tongva part of the Uto-Aztecan family Native Americans. The Tongva occupied much of the Los Angeles basin and the islands of Santa Catalina, San Nicolas, San Clemente and Santa Barbara. In the northern part of the valley were the Hahanog-na Indian tribe, a branch of the Tongva Nation who lived in villages scattered along the Arroyo Seco and the canyons from the mountains down to the South Pasadena area. In 1542, when the explorer Juan Rodriguez Cabrillo arrived off the shores of San Pedro and Santa Catalina; the Tongva were the people. The language of the Tongva was different from the neighboring Indian tribes and it was called Gabrielino by the Spanish; the Tongva provide the origin of many current names. The Gabrielinos lived in dome-like structures with thatched exteriors. Both sexes tattooed their bodies. During warm weather the men wore little clothing, but the women would wear minimal skirts made of animal hides.
During the cold weather they would wear animal skin capes. European diseases killed many of the Tongva and by 1870 the area had few remaining native inhabitants. Today, several bands of Tongva people live in the Los Angeles area; the first Europeans to see inland areas of California were the members of the 1769 Portolà expedition, which traveled north by land after establishing the first Spanish settlement in today's state of California at San Diego. On July 30, the expedition crossed the San Gabriel River and continued north toward what is now the city of Los Angeles. To cross the river, the expedition built a rough bridge, which gave the name La Puente to today's San Gabriel Valley city, hills to the south are called the Puente Hills. A few years a mission was established near the river crossing. Mission San Gabriel Arcangel was founded by Franciscan Father Junipero Serra, first head of the Spanish missions in California, on September 8, 1771, its original location was near where San Gabriel Boulevard now crosses the Rio Hondo, near the present day Juan Matias Sanchez Adobe.
Angel Somera and Pedro Cambon were the first missionary priests at the new mission, which marked the beginning of the Los Angeles region's settlement by Spaniards. The San Gabriel mission was the third of twenty-one missions that would be established along California's El Camino Real; the San Gabriel mission did well in establishing cattle ranching and farming, but six years after its founding a destructive flood led the mission fathers to relocate the establishment to its current location farther north in present-day city of San Gabriel. The original mission site is now marked by a California Historical Landmark. During the early years of the mission, the region operated under a Rancho system; the lands which now compose the city of Montebello were parts of Rancho San Antonio, Rancho La Merced, Rancho Paso de Bartolo. The Juan Matias Sanchez Adobe, built in 1844, remains standin
California State Assembly
The California State Assembly is the lower house of the California State Legislature, the upper house being the California State Senate. The Assembly convenes, along with the State Senate, at the California State Capitol in Sacramento; the Assembly consists with each member representing at least 465,000 people. Due to a combination of the state's large population and small legislature, the Assembly has the largest population-per-representative ratio of any state lower house and second largest of any legislative lower house in the United States after the federal House of Representatives. Members of the California State Assembly are referred to using the titles Assemblyman, Assemblywoman, or Assemblymember. In the current legislative session, Democrats enjoy a three-fourths supermajority of 61 seats, while Republicans controls 19 seats; the Speaker presides over the State Assembly in the chief leadership position, controlling the flow of legislation and committee assignments. The Speaker is elected by the full Assembly.
Other leaders, such as the majority and minority leaders, are elected by their respective party caucuses according to each party's strength in the chamber. The current Speaker is Democrat Anthony Rendon; the majority leader is Democrat Ian Calderon. As a result of Proposition 140 in 1990 and Proposition 28 in 2012, members elected to the Legislature prior to 2012 are restricted by term limits to three two-year terms, while those elected in or after 2012 are allowed to serve 12 years in the legislature in any combination of four-year State Senate or two-year State Assembly terms; every two years, all 80 seats in the Assembly are subject to election. This is in contrast to the State Senate, in which only half of its 40 seats are subject to election every two years; the chamber's green tones are based on the House of Commons of the United Kingdom. The dais rests along a wall shaped like an "E", with its central projection housing the rostrum. Along the cornice appears a portrait of Abraham Lincoln and a Latin quotation: legislatorum est justas leges condere.
Every decorating element is identical to the Senate Chamber. To run for the Assembly, a candidate must be a United States citizen and a registered voter in the district at the time nomination papers are issued, may not have served three terms in the State Assembly since November 6, 1990. According to Article 4, Section 2 of the California Constitution, the candidate must have one year of residency in the legislative district and California residency for three years; the chief clerk of the Assembly, a position that has existed since the Assembly's creation, is responsible for many administrative duties. The chief clerk is the custodian of all Assembly bills and records and publishes the Assembly Daily Journal, the minutes of floor sessions, as well as the Assembly Daily File; the chief clerk is the Assembly's parliamentarian, in this capacity gives advice to the presiding officer on matters of parliamentary procedure. The chief clerk is responsible for engrossing and enrolling of measures, the transmitting passed legislation to the governor.
Since 2016, the chaplain of the Assembly has been a Buddhist cleric. The chaplain from 2003 to 2016 was a Greek Orthodox priest; the position of sergeant-at-arms of the Assembly has existed since 1849. The sergeant-at-arms is tasked with law enforcement duties, but customarily has a ceremonial and protocol role. Today, some fifty employees are part of the Assembly Sergeant-at-Arms Office; the Chief Clerk, the acting Chief Sergeant-at-Arms, the Chaplains are not members of the Legislature. Elected in a special election Current committees include: Assembly Committee on Accountability and Administrative review Assembly Committee on Aging And Long-Term Care Assembly Committee on Agriculture Assembly Committee on Appropriations Assembly Committee on Arts, Sports and Internet Media Assembly Committee on Banking and Finance Assembly Committee on Budget Assembly Budget Subcommittee No. 1 on Health and Human Services Assembly Budget Subcommittee No. 2 on Education Finance Assembly Budget Subcommittee No. 3 on Resources and Transportation Assembly Budget Subcommittee No. 4 on State Administration Assembly Budget Subcommittee No. 5 on Public Safety Assembly Budget Subcommittee No. 6 on Budget Process Oversight and Program Evaluation Assembly Committee on Business and Consumer Protection Assembly Committee on Communications and Conveyance Assembly Committee on Education Assembly Committee on Elections and Redistricting Assembly Committee on Environmental Safety and Toxic Materials Assembly Committee on Governmental Organization Assembly Committee on Health Assembly Committee on Higher Education Assembly Committee on Housing and Community Development Assembly Committee on Human Services Assembly Committee on Insurance Assembly Committee on Jobs, Economic Development, the Economy Assembly Committee on Judiciary Assembly Committee on Labor and Employment Assembly Committee on Local Government Assembly Committee on Natural Resources Assembly Committee on Privacy and Consumer Protection Assembly Committee on Public Employees and Social Security Assembly Committee on Public Safety Assembly Committee on Revenue and Taxation Assembly Committee on Rules Assembly Committee on Transportation Assembly Committee on Utilities and Commerce Assembly Committee on Veterans Affairs Assembly Committ
Arcadia is a city in Los Angeles County, United States located about 13 miles northeast of downtown Los Angeles in the San Gabriel Valley and at the base of the San Gabriel Mountains. It is the site of the Santa Anita Park racetrack and home to the Los Angeles County Arboretum and Botanic Garden; the city had a population of 56,364 at the 2010 census, up from 53,248 at the 2000 census. The city is named after Greece. In 2016, Arcadia was ranked the 5th most expensive housing market in the United States by Business Insider, with an average list of $1,748,680 for a four-bedroom home. In 2012, Arcadia was ranked 7th in the nation on CNN Money magazine's list of towns with highest median home costs. Arcadia's Upper Rancho neighborhood was ranked the 23rd richest neighborhood in Southern California by Business Insider in 2014, with a mean household income of $310,779. In 2010, Bloomberg Businessweek named Arcadia as one of the "Best Places to Raise Your Kids" for the second year in a row. Located northeast of downtown Los Angeles, Arcadia is bordered by six other communities: Pasadena, Sierra Madre, El Monte, San Marino and Temple City.
According to the United States Census Bureau, the city has a total area of 11.1 square miles. 10.9 square miles of it is land and 0.2 square miles of it is water. The 2010 United States Census reported that Arcadia had a population of 56,364; the population density was 5,062.5 people per square mile. The racial makeup of Arcadia was 33,353 Asian, 18,191 White, 681 African American, 186 Native American, 16 Pacific Islander, 2,352 from other races, 1,585 from two or more races. Hispanic or Latino of any race were 6,799 persons; the Census reported that 55,502 people lived in households, 639 lived in non-institutionalized group quarters, 223 were institutionalized. There were 19,592 households, out of which 7,336 had children under the age of 18 living in them, 11,703 were opposite-sex married couples living together, 2,437 had a female householder with no husband present, 865 had a male householder with no wife present. There were 469 unmarried opposite-sex partnerships, 92 same-sex married couples or partnerships.
3,855 households were made up of individuals and 1,926 had someone living alone, 65 years of age or older. The average household size was 2.83. There were 15,005 families; the population was spread out with 12,290 people under the age of 18, 4,102 people aged 18 to 24, 13,409 people aged 25 to 44, 17,349 people aged 45 to 64, 9,214 people who were 65 years of age or older. The median age was 43.1 years. For every 100 females, there were 91.2 males. For every 100 females age 18 and over, there were 87.7 males. There were 20,686 housing units at an average density of 1,858.0 per square mile, of which 12,371 were owner-occupied, 7,221 were occupied by renters. The homeowner vacancy rate was 1.1%. 37,000 people lived in owner-occupied housing units and 18,502 people lived in rental housing units. These were the ten neighborhoods in Los Angeles County with the largest percentage of Asian residents, according to the 2000 census: For over 8,000 years the site of Arcadia was part of the homeland of the Tongva people, a Californian Native American tribe whose territory spanned the greater Los Angeles Basin, the San Gabriel and San Fernando Valleys.
Their fluid borders stretched between: the Santa Susana Mountains, San Bernardino Mountains, San Gabriel Mountains in the north. A Tongva settlement site within present-day Arcadia was known as Alyeupkigna; the town's site became part of the Spanish Mission San Gabriel Arcángel lands in 1771. After Indian Reductions to become Mission Indians, the Tongva were known as the Gabrieliños after the Mission's name, and under whose control these people worked during the mission period in California. There are 1,700 people self-identifying as members of the Tongva or Gabrieliño tribe; the Mexican land grant for Rancho Santa Anita was issued to Perfecto Hugo Reid and his Tongva wife, Victoria Bartolomea Comicrabit, in 1845. It was named after Anita Cota, on his wife's side. Reid documented the Gabrieliño Native Americans in a series of letters written in 1852, served as a delegate to the 1849 California Constitutional Convention. In 1847, Reid sold Rancho Santa Anita to Henry Dalton; the rancho changed owners several times before being acquired by Gold Rush immigrant and major regional land owner Elias Jackson "Lucky" Baldwin in 1875.
Baldwin purchased 8,000 acres of Rancho Santa Anita for $200,000. Upon seeing the area, he gasped “By Gads! This is paradise!” Upon buying the land, Baldwin chose to make the area his home and started erecting buildings and cultivating the land for farming and ranches. Baldwin built the Queen Anne Cottage for his fourth wife and himself in 1885-1886, now preserved within the Arboretum. In 1885, the main line of the Los Angeles and San Gabriel Valley Railroad, in which Baldwin was a stockholder, was opened through the ranch, making subdivision of part of the land into a town site practical; this rail line became a Santa Fe Railroad line. In 1889, on a site just north of