Population density is a measurement of population per unit area or unit volume, it is a quantity of type number density. It is frequently applied to living organisms, and most of the time to humans and it is a key geographical term. Population density is population divided by land area or water volume. Low densities may cause a vortex and lead to further reduced fertility. This is called the Allee effect after the scientist who identified it, commonly this may be calculated for a county, country, another territory, or the entire world. The worlds population is around 7,000,000,000, the worldwide human population density is around 7,000,000,000 ÷510,000,000 =13.7 per km2. If only the Earths land area of 150,000,000 km2 is taken into account and this includes all continental and island land area, including Antarctica. If Antarctica is excluded, population density rises to over 50 people per km2, 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, 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, for instance, Milwaukee has a greater population density when just the inner city is measured, and the surrounding suburbs excluded. 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. S. States by population density Selected Current and Historic City, Ward & Neighborhood Density
Eastern Time Zone
Places that use Eastern Standard Time when observing standard time are 5 hours behind Coordinated Universal Time. Eastern Daylight Time, when observing daylight saving time DST is 4 hours behind Coordinated Universal Time, in the northern parts of the time zone, on the second Sunday in March, at 2,00 a. m. EST, clocks are advanced to 3,00 a. m. EDT leaving a one-hour gap, on the first Sunday in November, at 2,00 a. m. EDT, clocks are moved back to 1,00 a. m, southern parts of the zone do not observe daylight saving time. The Uniform Time Act of 1966 ruled that daylight saving time would run from the last Sunday of April until the last Sunday in October in the United States, the act was amended to make the first Sunday in April the beginning of daylight saving time as of 1987. The Energy Policy Act of 2005 extended daylight saving time in the United States beginning in 2007. So local times change at 2,00 a. m. EST to 3,00 a. m. EDT on the second Sunday in March, in Canada, the time changes as it does in the United States.
However, a handful of communities unofficially observe Eastern Time because they are part of the Columbus, Georgia metropolitan area – Phenix City, Smiths Station and Valley. Florida, All of Florida is in the Eastern Time zone except for the portion of the Florida Panhandle west of the Apalachicola River, as the Eastern–Central zone boundary approaches the Gulf of Mexico, it follows the Bay/Gulf county line. Indiana, All of Indiana observes Eastern Time except for six counties in the Chicago metropolitan area. Kentucky, the half of the state, including all of metropolitan Louisville, is in the Eastern Time Zone. Historically the entire state observed Central Time, when daylight saving time was first introduced, the Lower Peninsula remained on DST after it formally ended, effectively re-aligning itself into the Eastern Time Zone. The Upper Peninsula continued to observe Central Time until 1972, when all, Most of the eastern third of Tennessee is legally on Eastern Time. Eastern Time is used somewhat as a de facto official time for all of the United States, since it includes the capital and the largest city.
Major professional sports leagues post all game times in Eastern time, for example, a game time between two teams from Pacific Time Zone will still be posted in Eastern time. Most cable television and national broadcast networks advertise airing times in Eastern time, national broadcast networks generally have two primary feeds, an eastern feed for Eastern and Central time zones, and a tape-delayed western feed for the Pacific Time Zone. The prime time is set on Eastern and Pacific at 8,00 p. m. with the Central time zone stations receiving the eastern feed at 7,00 p. m. local time. Mountain Time Zone stations receive a separate feed at 7,00 p. m. local time, as Arizona does not observe daylight saving time, during the summer months, it has its own feed at 7,00 p. m. local time
St. Lucie County, Florida
St. Lucie County is a county located in the state of Florida, in the United States. As of the 2010 census, the population was 277,789, the county seat is Fort Pierce. As of the 2015 Census Estimate, St. Lucie County is at a population of 298,563. St. Lucie County is included in the Port St. Lucie, FL Metropolitan Statistical Area, the area was originally inhabited by the Ais tribe, a hunter-gatherer culture whose territory extended from south of the St. Johns river to the St. Lucie Inlet. Spanish explorers frequently encountered the tribe as the Spanish treasure routes ran parallel in order to take advantage of the strong Gulfstream current. The area was given names by the Spanish including Rio de Ays as well as Santa Lucia. The fabled 1715 Spanish treasure fleet sank off the area that is now St. Lucie County, during the early 19th century, the Spanish government issued several land grants in the area, one of which went to settler James Hutchinson. The grant contained 2,000 acres and today the barrier island Hutchinson Island still retains his name, during the mid-1800s, Seminoles and runaway slaves sought refuge in the virtually uninhabited area.
By 1837 the Second Seminole war had broken out in Florida, in December 1837, a group of soldiers under the command of Lt. Colonel Benjamin K. Pierce sailed down the Indian River and established a fort, naming it after their commander. Today the county seat of St. Lucie County is still known as Fort Pierce, in 1841, the United States government began issuing land grants under the Armed Occupation Act to Americans who were willing to settle the area. Several of these grants were within the boundaries of todays St. Lucie County, the Third Seminole War in 1851 saw the building of a second major American fort in the area, Fort Capron, located in the area that is todays St. Lucie Village. From this point on the area became more populated as settlers ventured down for health. The Flagler railroad reached the area in the 1890s, major industries at the end of the 19th century in the area included pineapple and seafood canning and cattle. Citrus would not become a crop until the early 1900s. The city of Fort Pierce was chartered in 1901, up until 1905 the area had been under Brevard County.
During the summer of 1905, St. Lucie County was created from the part of Brevard County with the county seat being at Fort Pierce. Other settlements at the time in St. Lucie Countys boundaries included Jensen, Anknona, Eldred, White City, Viking, St. Lucie, Vero, Quay and others. Much of western St Lucie County had already gone in 1917 to form Okeechobee County, the 1920s saw increased land speculation and planned developments such as Indrio and San Lucie that never came to fruition due to the bust in 1929
Second Seminole War
The Second Seminole War, often referred to as the Seminole War, is regarded as the longest and most costly of the Indian conflicts of the United States. Bands from various tribes in the southeastern United States had moved into the lands in Florida in the 18th century. These included Alabamas, Yamasees and Creek people, the Creeks were the largest group, and included Lower Creeks and Upper Creeks, and both Hitchiti and Muscogee speakers. One group of Hitchiti speakers, the Mikasuki, settled around what is now Lake Miccosukee near Tallahassee, another group of Hitchiti speakers settled around the Alachua Prairie in what is now Alachua County. The Spanish in St. Augustine began calling the Alachua Creeks Cimarrones, which roughly meant wild ones or runaways, and this name was eventually applied to the other groups in Florida, although the Native Americans still regarded themselves as members of different tribes. The United States and Spain were at odds over Florida after the Treaty of Paris ended the American Revolutionary War, the United States disputed the boundaries of West Florida.
They accused the Spanish authorities of harboring fugitive slaves and of failing to restrain the Native Americans living in Florida from raiding into the United States, starting in 1810, the United States occupied and annexed parts of West Florida. In 1818 Andrew Jackson led an invasion of the Floridas, leading to the First Seminole War, the United States acquired Florida from Spain through the Adams-Onís Treaty in 1819 and took possession of the territory in 1821. Now that Florida belonged to the United States, the government was pressured by settlers to remove the Seminoles, in 1823 the government negotiated the Treaty of Moultrie Creek with the Seminoles, establishing a reservation for them in the middle of the territory. Six chiefs, were allowed to keep their villages along the Apalachicola River, the Seminoles gave up their lands in the panhandle and slowly settled into the reservation, although they had isolated clashes with whites. Colonel Duncan Lamont Clinch was placed in charge of the Army units in Florida, Fort King was built near the reservation agency, at the site of present-day Ocala, Florida.
By early 1827 the Army reported that the Seminoles were on the reservation and this peace lasted for five years, during which time there were repeated calls for the Seminoles to be sent west of the Mississippi. The Seminoles were opposed to the move, and especially to the suggestion that they should be placed on the Creek reservation. Most whites regarded the Seminoles as simply Creeks who had moved to Florida, while the Seminoles claimed Florida as their home. The status of slaves was a continuing irritation between Seminoles and whites. Spain had given freedom to slaves who escaped to Florida under their rule, over the years, those who became known as Black Seminoles established communities near Seminole villages, and the two peoples had close alliances although they maintained separate cultures. Slave catchers argued over the ownership of slaves, New plantations in Florida increased the pool of slaves who could escape to the Seminoles. Worried about the possibility of an Indian uprising and/or an armed slave rebellion, Fort King was closed in 1828
Pelican Island National Wildlife Refuge
Pelican Island National Wildlife Refuge is a United States National Wildlife Refuge located just off the western coast of Orchid Island in the Indian River Lagoon east of Sebastian, Florida. The refuge consists of a 3-acre island that includes an additional 2.5 acres of surrounding water and is located off the east coast of Florida of the Indian River Lagoon. Established by an order of President Theodore Roosevelt on March 14,1903. It was created to protect egrets and other birds from extinction through plume hunting, Pelican Island’s bird populations were threatened because of increased American settlement around the area in the mid-19th century. Many of the birds were killed for their feathers, used in the fashion industry. Plumes from the birds were used to adorn ladies hats of the day, Paul Kroegel, a German immigrant, moved to Florida in 1881 and lived on the west bank of Indian River Lagoon. He was fascinated with the pelicans on the island, being able to see the island from his home, Paul would watch the pelicans and other water birds.
He eventually took an interest in the island and its protection, there was not any state or federal law to help him so he took control of the situation himself. Kroegel sailed to the island to guard and protect the birds. A few naturalists visited Kroegel at Pelican Island, a curator at the American Museum of Natural History in New York, Frank Chapman, was one of the naturalists showing interest in the island as well. He discovered that Pelican Island was one of the last rookeries of Brown pelicans on the eastern coast of Florida, the American Ornithologists Union and the Florida Audubon Society led a campaign to pass legislation for protection of non-game birds in 1901. Kroegel was hired by the Florida Audubon Society to protect the birds from the game hunters. Knowing that the protection of Pelican Island would require legislation and his fellow advocate. The two appealed their case to Roosevelt’s conservative ethics, President Roosevelt signed an executive order that established Pelican Island as the first federal bird reservation.
This was the first time that the government put land aside for the sake of wildlife. The area, was open for big game hunters, during the 1960s, Pelican Island was threatened by attempts to sell the surrounding wetlands and islands to developers. Local citizens led a fight to protect Pelican Island by stopping the sale of the wetlands, in 1968, Florida agreed to expand to include nearly 5000 acres of mangrove islands and other submerged lands. And in 1970, Pelican Island became the smallest wilderness area in the National Wilderness Preservation System, Pelican Island National Wildlife Refuge was added to the list of wetlands of international importance under the Ramsar Convention signed in 1971
Okeechobee County, Florida
Okeechobee County is a county located in the state of Florida. As of the 2010 census, the population was 39,996, Okeechobee County comprises the Okeechobee, FL Micropolitan Statistical Area, which is included in the Miami-Fort Lauderdale-Port St. Lucie, FL Combined Statistical Area. Okeechobee County was incorporated in 1917 and it was named for the Lake Okeechobee, which was itself named for Hitchiti words oka and chobi. The Lake Okeechobee Scenic Trail, part of the Florida National Scenic Trail, runs along the Herbert Hoover Dike around the Lake. Okeechobee County Airport Floridas Turnpike US98 US441 CR68 SR70 SR78 SR710 As of the census of 2010, there were 39,996 people,13,857 households, the population density was 46 people per square mile. There were 15,504 housing units at a density of 52 per square mile. The racial makeup of the county was 87. 9% White,8. 6% Black or African American,1. 3% Native American,0. 9% Asian,0. 1% Pacific Islander,24. 5% of the population were Hispanic or Latino of any race.
In 200568. 5% of the county population was White non-Hispanic,21. 6% of the population was Latino,8. 0% was African-American and both Native Americans and Asians constituted 0. 9% of the population. 21. 50% of all households were made up of individuals and 10. 10% had someone living alone who was 65 years of age or older, the average household size was 2.69 and the average family size was 3.07. The median age was 37 years, for every 100 females there were 115.50 males. For every 100 females age 18 and over, there were 115.20 males, in 2010 the median income for a household in the county was $36,929, and the median income for a family was $35,163. Males had an income of $25,574 versus $20,160 for females. The per capita income for the county was $14,553, about 11. 80% of families and 16. 00% of the population were below the poverty line, including 19. 90% of those under age 18 and 10. 30% of those age 65 or over. Okeechobee County is part of the Heartland Library Cooperative which has 7 branches that serve Okeechobee county and some of the counties, including Glades, Hardee
Time in the United States
The time zone boundaries and DST observance are regulated by the Department of Transportation. The clocks run by these services are synchronized with each other as well as with those of other international timekeeping organizations. It is the combination of the zone and daylight saving rules, along with the timekeeping services. The use of solar time became increasingly awkward as railways. American railroads maintained many different time zones during the late 1800s, each train station set its own clock making it difficult to coordinate train schedules and confusing passengers. Time calculation became a problem for people travelling by train. Every city in the United States used a different time standard so there were more than 300 local sun times to choose from, Time zones were therefore a compromise, relaxing the complex geographic dependence while still allowing local time to be approximate with mean solar time. Railroad managers tried to address the problem by establishing 100 railroad time zones, operators of the new railroad lines needed a new time plan that would offer a uniform train schedule for departures and arrivals.
Four standard time zones for the continental United States were introduced at noon on November 18,1883, the conference therefore established the Greenwich Meridian as the prime meridian and Greenwich Mean Time as the worlds time standard. The US time-zone system grew from this, in all zones referred back to GMT on the prime meridian. It is, within about 1 second, mean time at 0°. It does not observe daylight saving time and it is one of several closely related successors to Greenwich Mean Time. For most purposes, UTC is considered interchangeable with GMT, standard time zones in the United States are currently defined at the federal level by law 15 USC §260. The federal law establishes the transition dates and times at which daylight saving time occurs. As of August 9,2007, the time zones are defined in terms of hourly offsets from UTC. Prior to this they were based upon the solar time at several meridians 15° apart west of Greenwich. Only the full-time zone names listed below are official, abbreviations are by common use conventions, the United States uses nine standard time zones.
The Central standard time zone, which comprises roughly the Gulf Coast, Mississippi Valley, the Mountain standard time zone, which comprises roughly the states that include the Rocky Mountains
Port St. Lucie, Florida
Port St. Lucie is the most populous municipality of St. Lucie County, United States. The population of Port St. Lucie was 164,603 at the 2010 census due to its growth during the 2000s. In 2013, the state of Florida estimated the population at 171,016. Port St. Lucie forms part of an area called the Port St. Lucie. As of 2015, the city had 179,413 residents, Port St. Lucie was a largely uninhabited tract of land south of White City in the 1950s, composed of a fishing camp, a few farms and businesses near U. S.1. In 1958, with a budget of $5, the General Development Corporation purchased the River Park development and 40,000 acres along the North Fork of the St. Lucie River. In 1959, the GDC opened its first bridge over the St. Lucie River, by February 25,1961 there were 250 homes in the new city. GDC requested the legislature to incorporate 70 miles, along with the River Park settlement. River Park did not incorporate into the city at the request of its residents, Port St. Lucie became a city on April 27,1961 with the passage of House Bill No.
953, proposed by State Representative Rupert Smith and approved by Florida Governor C, in the early 1990s, Core Communities and began planning what would become St. Lucie West. Originally, St. Lucie West was to have contained about 14,000 homes over a 20-year period on 7 square miles, but after realizing the communitys strategic position, they began developing it into more than just a residential area. CC began building business sectors and places of entertainment and leisure and that resulted in 7,000 jobs being brought to the small town, helping it into its boom during most of the early 2000s. In 2006, CC started development of its newest community, the community, which sits west of the Interstate 95 intersection of Gatlin Blvd. was a large cattle ranch before CC began to develop it. There they built around 13,000,000 square feet of commercial area, according to CCs website, Tradition is the largest fully entitled residential development area from the tip of Interstate 95 to the Canada–U. S.
It is modeled after a 1950s-era town, according to its website, Tradition Square, the town center of the community, holds festivities year-round. It was chosen as the site of HGTVs Green Home 2009, in 2007, the housing market began to collapse and unemployment started to rise. As of February 2009, unemployment was at 10½ percent and in 2008 and this prompted the county government to consider declaring itself a disaster area. Doing so would have given county administrators access to $17 million in county emergency reserve funds and this campus alone is projected to bring more than 30,000 jobs to the city of Port St. Lucie
St. Johns County, Florida
St. Johns County is a county of the U. S. state of Florida. As of the 2010 United States Census, the population was 190,039. The county seat and largest incorporated city is St. Augustine, the county was established in 1821. It was named for the St. Johns River, which runs along its western border, St. Johns County is included in the Jacksonville Metropolitan Statistical Area. The county is made up of residential bedroom communities. Tourism, primarily associated with St. Augustine and the golf courses in the area, is the chief economic industry. St. Johns County’s history begins in 1821, when Colonel Robert Butler received Spanish East Florida from Captain-General Colonel José M. Coppinger, the name Saint Johns was derived from the Spanish mission San Juan del Puerto or Saint John of the Harbor. The apostrophe was dropped in 1932 by the U. S. Department of the Interior because an apostrophe implied ownership. It was a county, encompassing most of peninsular Florida, or more than 39,000 square miles. Much of the land was uninhabited, Saint Augustine was the oldest permanent European settlement, and there were Native Americans in the county as well.
According to the U. S. Census Bureau, the county has an area of 822 square miles. The population density was 202 people per square mile, there were 58,008 housing units at an average density of 95 per square mile. The racial makeup of the county was 90. 92% White,6. 29% African American,0. 26% American Indian,0. 95% Asian,0. 05% Pacific Islander,0. 55% from other races, and 0. 97% from two or more races. Hispanic or Latino of any race were 2. 63% of the population,24. 30% of all households were made up of individuals and 9. 40% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the family size was 2.90. The age of the population was out with 23. 10% under the age of 18,7. 00% from 18 to 24,27. 60% from 25 to 44,26. 40% from 45 to 64. The median age was 41 years, for every 100 females there were 94.50 males. For every 100 females age 18 and over, there were 91.50 males, the median income for a household in the county was $50,099, and the median income for a family was $59,153
Sebastian is a city in Indian River County, United States, with a small portion in Brevard County. In 2010, the population recorded by the U. S. Census Bureau was 21,929, Sebastian is a principal city of the Sebastian−Vero Beach Metropolitan Statistical Area, which includes all of Indian River County. In 1715, several Spanish ships loaded with treasure encountered a storm off the shores of the Treasure Coast and were lost and it is estimated that only a portion of the sunken treasure has been found. The value placed on the treasure lost from the 1715 fleet has been estimated at over $500 million USD, the town of Sebastian was a fishing village as early as the 1870s. In the early 1880s David Peter Gibson, and Thomas New settled in the area, New filed to start a post office under the name New Haven. However, New got into trouble for misuse of his position as postmaster and was removed. Sebastian was officially founded in 1882 and named St. Sebastian, later, “St. ” was removed from the name of the town, but not from the river.
Sebastian was incorporated as a city in 1923, nearby Pelican Island was declared the United States’ first National Wildlife refuge in 1903. At the 2010 census, there were 21,921 people,9,508 households and 6.462 families residing within the city in 10,815 housing units. The racial make-up of the city was 90. 5% White,5. 3% African American,0. 20% Native American,1. 10% Asian,1. 2% from other races, hispanic or Latino of any race were 7. 00% of the population. 21. 5% of households had children under the age of 16 living with them,54. 1% were married couples living together,10. 1% had a householder with no husband present. 32. 00% consisted of families or unrelated individuals. 25. 2% of all households were made up of individuals and 3. 9% had someone living alone who was 85 years of age or older, the average household size was 2.30 and the average family size was 2.75. 52. 4% of the population were female and 47. 6% male. 15. 8% were under the age of 16,6. 0% from 15 to 19,3. 7% from 20 to 24,3. 8% from 25 to 29, the median age was 50.1 years.
The per capita income for the city was $24,959 in 2010. About 4. 8% of families and 6. 3% of the population were below the poverty line, the Government of the City of Sebastian follows a council-manager government model with a five-member city council as the elected governing body and a city manager as the chief operating officer. Members of the city council serve two-year terms with staggered elections, the School District of Indian River County operates public schools
Forty-eight of the fifty states and the federal district are contiguous and located in North America between Canada and Mexico. The state of Alaska is in the northwest corner of North America, bordered by Canada to the east, the state of Hawaii is an archipelago in the mid-Pacific Ocean. The U. S. territories are scattered about the Pacific Ocean, the geography and wildlife of the country are extremely diverse. At 3.8 million square miles and with over 324 million people, the United States is the worlds third- or fourth-largest country by area, third-largest by land area. It is one of the worlds most ethnically diverse and multicultural nations, paleo-Indians migrated from Asia to the North American mainland at least 15,000 years ago. European colonization began in the 16th century, the United States emerged from 13 British colonies along the East Coast. Numerous disputes between Great Britain and the following the Seven Years War led to the American Revolution. On July 4,1776, during the course of the American Revolutionary War, the war ended in 1783 with recognition of the independence of the United States by Great Britain, representing the first successful war of independence against a European power.
The current constitution was adopted in 1788, after the Articles of Confederation, the first ten amendments, collectively named the Bill of Rights, were ratified in 1791 and designed to guarantee many fundamental civil liberties. During the second half of the 19th century, the American Civil War led to the end of slavery in the country. By the end of century, the United States extended into the Pacific Ocean. The Spanish–American War and World War I confirmed the status as a global military power. The end of the Cold War and the dissolution of the Soviet Union in 1991 left the United States as the sole superpower. The U. S. is a member of the United Nations, World Bank, International Monetary Fund, Organization of American States. The United States is a developed country, with the worlds largest economy by nominal GDP. It ranks highly in several measures of performance, including average wage, human development, per capita GDP. While the U. S. economy is considered post-industrial, characterized by the dominance of services and knowledge economy, the United States is a prominent political and cultural force internationally, and a leader in scientific research and technological innovations.
In 1507, the German cartographer Martin Waldseemüller produced a map on which he named the lands of the Western Hemisphere America after the Italian explorer and cartographer Amerigo Vespucci
1940 United States Census
The census date of record was April 1,1940. A number of new questions were asked including where people were 5 years before, highest educational grade achieved and this census introduced sampling techniques, one in 20 people were asked additional questions on the census form. Other innovations included a field test of the census in 1939, the 1940 census collected the following information, In addition, a sample of individuals were asked additional questions covering age at first marriage and other topics. Full documentation on the 1940 census, including forms and a procedural history, is available from the Integrated Public Use Microdata Series. Following completion of the census, the original sheets were microfilmed. As required by Title 13 of the U. S. Code, non-personally identifiable information Microdata from the 1940 census is freely available through the Integrated Public Use Microdata Series. Also, aggregate data for small areas, together with electronic boundary files, on April 2, 2012—72 years after the census was taken—microfilmed images of the 1940 census enumeration sheets were released to the public by the National Archives and Records Administration.
The records are indexed only by enumeration district upon initial release, several organizations are compiling indices, why the huge interest in the 1940 Census. 1940 Census Questions Hosted at CensusFinder. com