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
Arkansas is a state in the southern region of the United States, home to over 3 million people as of 2018. Its name is of Siouan derivation from the language of the Osage denoting their related kin, the Quapaw Indians; the state's diverse geography ranges from the mountainous regions of the Ozark and the Ouachita Mountains, which make up the U. S. Interior Highlands, to the densely forested land in the south known as the Arkansas Timberlands, to the eastern lowlands along the Mississippi River and the Arkansas Delta. Arkansas is the 33rd most populous of the 50 United States; the capital and most populous city is Little Rock, located in the central portion of the state, a hub for transportation, business and government. The northwestern corner of the state, such as the Fayetteville–Springdale–Rogers Metropolitan Area and Fort Smith metropolitan area, is a population and economic center; the largest city in the state's eastern part is Jonesboro. The largest city in the state's southeastern part is Pine Bluff.
The Territory of Arkansas was admitted to the Union as the 25th state on June 15, 1836. In 1861, Arkansas withdrew from the United States and joined the Confederate States of America during the Civil War. On returning to the Union in 1868, the state continued to suffer due to its earlier reliance on slavery and the plantation economy, causing the state to fall behind economically and socially. White rural interests continued to dominate the state's politics until the civil rights movement. Arkansas began to diversify its economy following World War II and relies on its service industry, poultry, tourism and rice; the culture of Arkansas is observable in museums, novels, television shows and athletic venues across the state. People such as politician and educational advocate William Fulbright; the name Arkansas was applied to the Arkansas River and derives from a French term, the plural term for Quapaws, a Dhegiha Siouan-speaking Native American people who settled in Arkansas around the 13th century.
This comes from an Algonquian term, /akansa/, for the Quapaws, is also the root term for Kansas. The name has been spelled in a variety of fashions. In 1881, the pronunciation of Arkansas with the final "s" being silent was made official by an act of the state legislature after a dispute arose between Arkansas's two U. S. senators as one favored the pronunciation as AR-kən-saw while the other favored ar-KAN-zəs. In 2007, the state legislature passed a non-binding resolution declaring that the possessive form of the state's name is Arkansas's, followed by the state government. Arkansas borders Louisiana to the south, Texas to the southwest, Oklahoma to the west, Missouri to the north, Tennessee and Mississippi to the east; the United States Census Bureau classifies Arkansas as a southern state, sub-categorized among the West South Central States. The Mississippi River forms most of Arkansas's eastern border, except in Clay and Greene, counties where the St. Francis River forms the western boundary of the Missouri Bootheel, in many places where the channel of the Mississippi has meandered from its original 1836 course.
Arkansas can be split into two halves, the highlands in the northwest half and the lowlands of the southeastern half. The highlands are part of the Southern Interior Highlands, including The Ozarks and the Ouachita Mountains; the southern lowlands include the Arkansas Delta. This dual split can yield to general regions named northwest, northeast, southeast, or central Arkansas; these directionally named regions are broad and not defined along county lines. Arkansas has seven distinct natural regions: the Ozark Mountains, Ouachita Mountains, Arkansas River Valley, Gulf Coastal Plain, Crowley's Ridge, the Arkansas Delta, with Central Arkansas sometimes included as a blend of multiple regions; the southeastern part of Arkansas along the Mississippi Alluvial Plain is sometimes called the Arkansas Delta. This region is a flat landscape of rich alluvial soils formed by repeated flooding of the adjacent Mississippi. Farther away from the river, in the southeast portion of the state, the Grand Prairie consists of a more undulating landscape.
Both are fertile agricultural areas. The Delta region is bisected by a geological formation known as Crowley's Ridge. A narrow band of rolling hills, Crowley's Ridge rises from 250 to 500 feet above the surrounding alluvial plain and underlies many of the major towns of eastern Arkansas. Northwest Arkansas is part of the Ozark Plateau including the Ozark Mountains, to the south are the Ouachita Mountains, these regions are divided by the Arkansas River; these mountain ranges are part of the U. S. Interior Highlands region, the only major mountainous region between the Rocky Mountains and the Appalachian Mountains; the highest point in the state is Mount Magazine in the Ouachita Mountains, which rises to 2,753 feet above sea level. Arkansas has many rivers and reservoirs within or along its borders. Major tributaries of the Mississippi River include the Arkansas River, the White River, the St. Francis River; the Arkansas is fed by the Mulberry River and the Fou
Missouri is a state in the Midwestern United States. With over six million residents, it is the 18th-most populous state of the Union; the largest urban areas are St. Louis, Kansas City and Columbia; the state is the 21st-most extensive in area. In the South are the Ozarks, a forested highland, providing timber and recreation; the Missouri River, after which the state is named, flows through the center of the state into the Mississippi River, which makes up Missouri's eastern border. Humans have inhabited the land now known as Missouri for at least 12,000 years; the Mississippian culture built mounds, before declining in the 14th century. When European explorers arrived in the 17th century they encountered the Osage and Missouria nations; the French established Louisiana, a part of New France, founded Ste. Genevieve in 1735 and St. Louis in 1764. After a brief period of Spanish rule, the United States acquired the Louisiana Purchase in 1803. Americans from the Upland South, including enslaved African Americans, rushed into the new Missouri Territory.
Missouri was admitted as a slave state as part of the Missouri Compromise. Many from Virginia and Tennessee settled in the Boonslick area of Mid-Missouri. Soon after, heavy German immigration formed the Missouri Rhineland. Missouri played a central role in the westward expansion of the United States, as memorialized by the Gateway Arch; the Pony Express, Oregon Trail, Santa Fe Trail, California Trail all began in Missouri. As a border state, Missouri's role in the American Civil War was complex and there were many conflicts within. After the war, both Greater St. Louis and the Kansas City metropolitan area became centers of industrialization and business. Today, the state is divided into the independent city of St. Louis. Missouri's culture blends elements from Southern United States; the musical styles of ragtime, Kansas City jazz, St. Louis Blues developed in Missouri; the well-known Kansas City-style barbecue, lesser-known St. Louis-style barbecue, can be found across the state and beyond. Missouri is a major center of beer brewing.
Missouri wine is produced in Ozarks. Missouri's alcohol laws are among the most permissive in the United States. Outside of the state's major cities, popular tourist destinations include the Lake of the Ozarks, Table Rock Lake, Branson. Well-known Missourians include U. S. President Harry S. Truman, Mark Twain, Walt Disney, Chuck Berry, Nelly; some of the largest companies based in the state include Cerner, Express Scripts, Emerson Electric, Edward Jones, H&R Block, Wells Fargo Advisors, O'Reilly Auto Parts. Missouri has been called the "Mother of the West" and the "Cave State"; the state is named for the Missouri River, named after the indigenous Missouri Indians, a Siouan-language tribe. It is said that they were called the ouemessourita, meaning "those who have dugout canoes", by the Miami-Illinois language speakers; this appears to be folk etymology—the Illinois spoke an Algonquian language and the closest approximation that can be made in that of their close neighbors, the Ojibwe, is "You Ought to Go Downriver & Visit Those People."
This would be an odd occurrence, as the French who first explored and attempted to settle the Mississippi River got their translations during that time accurate giving things French names that were exact translations of the native tongue. Assuming Missouri were deriving from the Siouan language, it would translate as "It connects to the side of it," in reference to the river itself; this is not likely either, as this would be coming out as "Maya Sunni" Most though, the name Missouri comes from Chiwere, a Siouan language spoken by people who resided in the modern day states of Wisconsin, South Dakota, Missouri & Nebraska. The name "Missouri" has several different pronunciations among its present-day natives, the two most common being and. Further pronunciations exist in Missouri or elsewhere in the United States, involving the realization of the first syllable as either or. Any combination of these phonetic realizations may be observed coming from speakers of American English; the linguistic history was treated definitively by Donald M. Lance, who acknowledged that the question is sociologically complex, but that no pronunciation could be declared "correct", nor could any be defined as native or outsider, rural or urban, southern or northern, educated or otherwise.
Politicians employ multiple pronunciations during a single speech, to appeal to a greater number of listeners. Informal respellings of the state's name, such as "Missour-ee" or "Missour-uh", are used informally to phonetically distinguish pronunciations. There is no official state nickname. However, Missouri's unofficial nickname is the "Show Me State"; this phrase has several origins. One is popularly ascribed to a speech by Congressman Willard Vandiver in 1899, who declared that "I come from a state that raises corn and cotton and Democrats, frothy eloquence neither convinces nor satisfies me. I'm from Missouri, you have got to show me." This is in keeping with the saying "I'm from Missouri" which means "I'm skeptical of the matter and not convinced." However, according to researchers, the phrase "show me" was in use
1910 United States Census
The Thirteenth United States Census, conducted by the Census Bureau on April 15, 1910, determined the resident population of the United States to be 92,228,496, an increase of 21.0 percent over the 76,212,168 persons enumerated during the 1900 Census. The 1910 Census switched from a portrait page orientation to a landscape orientation; the 1910 census collected the following information: Full documentation for the 1910 census, including census forms and enumerator instructions, is available from the Integrated Public Use Microdata Series. The column titles in the census form are as follows: LOCATION. Street, road, etc. House number. 1. Number of dwelling house in order of visitation. 2. Number of family in order of visitation. 3. NAME of each person whose place of abode on April 15, 1910, was in this family. Enter surname first the given name and middle initial, if any. Include every person living on April 15, 1910. Omit children born since April 15, 1910. RELATION. 4. Relationship of this person to the head of the family.
PERSONAL DESCRIPTION. 5. Sex. 6. Color or race. 7. Age at last birthday. 8. Whether single, widowed, or divorced. 9. Number of years of present marriage. 10. Mother of how many children: Number born. 11. Mother of how many children: Number now living. NATIVITY. Place of birth of each person and parents of each person enumerated. If born in the United States, give the state or territory. If of foreign birth, give the country. 12. Place of birth of this Person. 13. Place of birth of Father of this person. 14. Place of birth of Mother of this person. CITIZENSHIP. 15. Year of immigration to the United States. 16. Whether naturalized or alien. 17. Whether able to speak English. OCCUPATION. 18. Trade or profession of, or particular kind of work done by this person, as spinner, laborer, etc. 19. General nature of industry, business, or establishment in which this person works, as cotton mill, dry goods store, etc. 20. Whether as employer, employee, or work on own account. If an employee— 21. Whether out of work on April 15, 1910.
22. Number of weeks out of work during year 1909. EDUCATION. 23. Whether able to read. 24. Whether able to write. 25. Attended school any time since September 1, 1909. OWNERSHIP OF HOME. 26. Owned or rented. 27. Owned free or mortgaged. 28. Farm or house. 29. Number of farm schedule. 30. Whether a survivor of the Union or Confederate Army or Navy. 31. Whether blind. 32. Whether deaf and dumb. Special Notation In 1912 and 1959, New Mexico, Arizona and Hawaii would become the 47th, 48th, 49th and 50th states admitted to the Union; the 1910 population count for each of these areas was 327,301, 204,354, 64,356 and 191,909 respectively. On this basis, the ranking list above would be modified as follows: First 42 ranked states - positions unchanged New Mexico, Arizona, Hawaii, Wyoming and Alaska; the original census enumeration sheets were microfilmed by the Census Bureau in the 1940s. The microfilmed census is available in rolls from the National Records Administration. Several organizations host images of the microfilmed census online, along which digital indices.
Microdata from the 1910 census are available through the Integrated Public Use Microdata Series. Aggregate data for small areas, together with electronic boundary files, can be downloaded from the National Historical Geographic Information System. 1911 U. S Census Report Contains 1910 Census results Historic US Census data census.gov/population/www/censusdata/PopulationofStatesandCountiesoftheUnitedStates1790-1990.pdf
Per capita income
Per capita income or average income measures the average income earned per person in a given area in a specified year. It is calculated by dividing the area's total income by its total population. Per capita income is national income divided by population size. Per capita income is used to measure an area's average income and compare the wealth of different populations. Per capita income is used to measure a country's standard of living, it is expressed in terms of a used international currency such as the euro or United States dollar, is useful because it is known, is calculable from available gross domestic product and population estimates, produces a useful statistic for comparison of wealth between sovereign territories. This helps to ascertain a country's development status, it is one of the three measures for calculating the Human Development Index of a country. In the United States, it is defined by the U. S. Census Bureau as the following: "Per capita income is the mean money income received in the past 12 months computed for every man and child in a geographic area."
Critics claim that per capita income has several weaknesses in measuring prosperity: Comparisons of per capita income over time need to consider inflation. Without adjusting for inflation, figures tend to overstate the effects of economic growth. International comparisons can be distorted by cost of living differences not reflected in exchange rates. Where the objective is to compare living standards between countries, adjusting for differences in purchasing power parity will more reflect what people are able to buy with their money, it does not reflect income distribution. If a country's income distribution is skewed, a small wealthy class can increase per capita income while the majority of the population has no change in income. In this respect, median income is more useful when measuring of prosperity than per capita income, as it is less influenced by outliers. Non-monetary activity, such as barter or services provided within the family, is not counted; the importance of these services varies among economies.
Per capita income does not consider whether income is invested in factors to improve the area's development, such as health, education, or infrastructure. List of countries by average wage List of countries by GDP per capita—GDP at market or government official exchange rates per inhabitant List of countries by GDP per capita—GDP calculated at purchasing power parity exchange per inhabitant List of countries by GNI per capita List of countries by GNI per capita List of countries by income equality Total personal income
Lawrence County, Arkansas
Lawrence County is a county located in the U. S. state of Arkansas. As of the 2010 census, the population was 17,415; the county seat is Walnut Ridge. Lawrence County is Arkansas's second county, formed on January 15, 1815, named for Captain James Lawrence who fought in the War of 1812, it is dry county. According to the U. S. Census Bureau, the county has a total area of 592 square miles, of which 588 square miles is land and 4.7 square miles is water. Randolph County Greene County Craighead County Jackson County Independence County Sharp County As of the 2000 census, there were 17,774 people, 7,108 households, 5,011 families residing in the county; the population density was 30 people per square mile. There were 8,085 housing units at an average density of 14 per square mile; the racial makeup of the county was 97.78% White, 0.44% Black or African American, 0.57% Native American, 0.05% Asian, 0.01% Pacific Islander, 0.12% from other races, 1.02% from two or more races. 0.68% of the population were Hispanic or Latino of any race.
There were 7,108 households out of which 30.80% had children under the age of 18 living with them, 57.70% were married couples living together, 9.60% had a female householder with no husband present, 29.50% were non-families. 26.70% of all households were made up of individuals and 14.20% had someone living alone, 65 years of age or older. The average household size was 2.42 and the average family size was 2.92. In the county, the population was spread out with 24.00% under the age of 18, 9.60% from 18 to 24, 25.90% from 25 to 44, 23.20% from 45 to 64, 17.40% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 93.60 males. For every 100 females age 18 and over, there were 89.40 males. The median income for a household in the county was $27,139, the median income for a family was $32,163. Males had a median income of $26,288 versus $18,518 for females; the per capita income for the county was $13,785. About 13.90% of families and 18.40% of the population were below the poverty line, including 25.50% of those under age 18 and 20.10% of those age 65 or over.
Public education is available from four school districts: Hillcrest School District Hoxie School District Lawrence County School District Sloan–Hendrix School District Black Rock Hoxie Walnut Ridge Townships in Arkansas are the divisions of a county. Each township includes unincorporated areas. Arkansas townships have limited purposes in modern times. However, the United States Census does list Arkansas population based on townships. Townships are of value for historical purposes in terms of genealogical research; each town or city is within one or more townships in an Arkansas county based on census maps and publications. The townships of Lawrence County are listed below. List of lakes in Lawrence County, Arkansas National Register of Historic Places listings in Lawrence County, Arkansas
United States Census Bureau
The United States Census Bureau is a principal agency of the U. S. Federal Statistical System, responsible for producing data about the American people and economy; the Census Bureau is part of the U. S. Department of Commerce and its director is appointed by the President of the United States; the Census Bureau's primary mission is conducting the U. S. Census every ten years, which allocates the seats of the U. S. House of Representatives to the states based on their population; the Bureau's various censuses and surveys help allocate over $400 billion in federal funds every year and it helps states, local communities, businesses make informed decisions. The information provided by the census informs decisions on where to build and maintain schools, transportation infrastructure, police and fire departments. In addition to the decennial census, the Census Bureau continually conducts dozens of other censuses and surveys, including the American Community Survey, the U. S. Economic Census, the Current Population Survey.
Furthermore and foreign trade indicators released by the federal government contain data produced by the Census Bureau. Article One of the United States Constitution directs the population be enumerated at least once every ten years and the resulting counts used to set the number of members from each state in the House of Representatives and, by extension, in the Electoral College; the Census Bureau now conducts a full population count every 10 years in years ending with a zero and uses the term "decennial" to describe the operation. Between censuses, the Census Bureau makes population projections. In addition, Census data directly affects how more than $400 billion per year in federal and state funding is allocated to communities for neighborhood improvements, public health, education and more; the Census Bureau is mandated with fulfilling these obligations: the collecting of statistics about the nation, its people, economy. The Census Bureau's legal authority is codified in Title 13 of the United States Code.
The Census Bureau conducts surveys on behalf of various federal government and local government agencies on topics such as employment, health, consumer expenditures, housing. Within the bureau, these are known as "demographic surveys" and are conducted perpetually between and during decennial population counts; the Census Bureau conducts economic surveys of manufacturing, retail and other establishments and of domestic governments. Between 1790 and 1840, the census was taken by marshals of the judicial districts; the Census Act of 1840 established a central office. Several acts followed that revised and authorized new censuses at the 10-year intervals. In 1902, the temporary Census Office was moved under the Department of Interior, in 1903 it was renamed the Census Bureau under the new Department of Commerce and Labor; the department was intended to consolidate overlapping statistical agencies, but Census Bureau officials were hindered by their subordinate role in the department. An act in 1920 changed the date and authorized manufacturing censuses every two years and agriculture censuses every 10 years.
In 1929, a bill was passed mandating the House of Representatives be reapportioned based on the results of the 1930 Census. In 1954, various acts were codified into Title 13 of the US Code. By law, the Census Bureau must count everyone and submit state population totals to the U. S. President by December 31 of any year ending in a zero. States within the Union receive the results in the spring of the following year; the United States Census Bureau defines four statistical regions, with nine divisions. The Census Bureau regions are "widely used...for data collection and analysis". The Census Bureau definition is pervasive. Regional divisions used by the United States Census Bureau: Region 1: Northeast Division 1: New England Division 2: Mid-Atlantic Region 2: Midwest Division 3: East North Central Division 4: West North Central Region 3: South Division 5: South Atlantic Division 6: East South Central Division 7: West South Central Region 4: West Division 8: Mountain Division 9: Pacific Many federal, state and tribal governments use census data to: Decide the location of new housing and public facilities, Examine the demographic characteristics of communities and the US, Plan transportation systems and roadways, Determine quotas and creation of police and fire precincts, Create localized areas for elections, utilities, etc.
Gathers population information every 10 years The United States Census Bureau is committed to confidentiality, guarantees non-disclosure of any addresses or personal information related to individuals or establishments. Title 13 of the U. S. Code establishes penalties for the disclosure of this information. All Census employees must sign an affidavit of non-disclosure prior to employment; the Bureau cannot share responses, addresses or personal information with anyone including United States or foreign government