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According to the U.S. Census Bureau, as of 2010, the state of Oklahoma has an estimated population of 3,751,351, which is an increase of 300,697 or 8.7% since the year 2000. Oklahoma is the 28th most populous state in the United States in population. ==Population== The United States Census Bureau estimates that the population of Oklahoma was 3,814,820 on July 1, 2012, a 1.7% increase since the 2010 United States Census. According to the U.S. Census, as of 2010, Oklahoma has a historical estimated population of 3,751,351 which is an increase of 300,058 or 8.7 percent, since the year 2000.〔 Oklahoma ranks first in the Great Plains region in terms of population, followed by Kansas, Nebraska, South Dakota, and North Dakota. There has historically been a lot of German American, Irish American and English American immigration to what is now the state of Oklahoma. In the state, the population was spread out with 24.8% under the age of 18, 10.2% from 18 to 24, 25.8% from 25 to 44, 25.8% from 45 to 64, and 13.5% who were 65 years of age or older. The median age was 36.2 years. For every 100 females there were 98.0 males. For every 100 females age 18 and over, there were 95.8 males. There were 1,460,450 households out of which 29.4% had children under the age of 18 living with them, 49.5% were married couples living together, 12.3% had a female householder with no husband present, and 33.2% were non-families. Of all households, 27.5% were made up of individuals and 9.9% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 3.04. It was estimated in 2010, that 5.5% of Oklahoma's residents, 206,382 were foreign born. Of them 31.9% were Naturalized US citizens and 68.1% were Not a US citizen.〔 〕 The median income for a household in the state was $42,072, and the median income for a family was $51,958 (these figures have risen to 44,287 and 55,296 respectively in 2011). The per capita income for the state was $22,254 (risen to 26,192). It was estimated that 16.9% (has decreased to 16.3%, in 2011)〔http://factfinder2.census.gov/faces/tableservices/jsf/pages/productview.xhtml?src=bkmk〕 of the population were below the poverty line. Out of the total population, 24.7% of those under the age of 18 and 15.4% of those 65 and older were living below the poverty line. About 81.1% of the state's civilian non-institutionalized population has health coverage with 61.8% with private insurance and 31.3% with public coverage. About 18.9% of the state's population has no health insurance coverage and 10.0% of all children 18 years and younger in Oklahoma have no health insurance.〔 The center of population of Oklahoma is located at 35.598464 N, -96.836786 W, in Lincoln County near the town of Sparks. As of 2010, the largest ancestry groups in Oklahoma were:〔http://factfinder2.census.gov/faces/tableservices/jsf/pages/productview.xhtml?pid=ACS_10_1YR_DP02&prodType=table〕 *14.6% German *12.6% Irish *9.6% American (most Oklahomans who cite American are primarily of English, Scottish, and Welsh ancestries)〔David Hackett Fischer, ''Albion's Seed: Four British Folkways in America'', New York: Oxford University Press, 1989, pp.602–645〕〔(Sharing the Dream: White Males in a Multicultural America ) By Dominic J. Pulera.〕 *8.2% English *7.1% Mexican *2.4% French *2.0% Dutch *1.8% Scottish *1.7% Scandinavian (0.7% Swedish, 0.7% Norwegian, Danish, Finnish) *1.7% Italian *1.2% Scotch-Irish 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Demographics of Oklahoma」の詳細全文を読む スポンサード リンク
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