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Missouri is a state located in the Midwestern United States. It is the 21st most extensive, and the 18th most populous of the fifty states. The state comprises 114 counties and the independent city of St. Louis.

As defined by the 2010 US census, the four largest urban areas in order of population are St. LouisKansas CitySpringfield, and Columbia. The mean center of the United States population at the 2010 census was in the town of Plato in Texas County. The state's capital is Jefferson City. The land that is now Missouri was acquired from France as part of the Louisiana Purchase and became known as the Missouri Territory. Part of this territory was admitted into the union as the 24th state on August 10, 1821.

Missouri's geography is highly varied. The northern part of the state lies in dissected till plains and the southern portion lies in the Ozark Mountains (a dissected plateau), with the Missouri River dividing the regions. The state lies at the intersection of the three greatest rivers of North America, with the confluence of the Mississippi and Missouri Rivers near St. Louis, and the confluence of the Ohio River with the Mississippi north of the Bootheel. The starting points for the Pony ExpressSanta Fe Trail, and Oregon Trail were all located in Missouri as well.


The Mississippi River near Hannibal, Missouri

A map of Missouri

The Gateway Arch in St. Louis


Population Statistics

Census Counts (April 1)
20105,988,927181.94 %308,745,538
20005,595,211171.99 %281,421,906
19905,116,901152.06 %248,790,925
19804,916,686152.17 %226,545,805
2000 to 2010 % change7.0 %299.7 %
1990 to 2010 % change17.0 %2924.1 %
1980 to 2010 % change21.8 %2836.3 %

Components of Population Change in 2014NumberRankPercent of U.S.U.S.
Net Domestic Migration-8,07435
Net International Migration8,641220.87 %995,944
Natural Increase (births minus deaths)18,955211.39 %1,363,581
Births74,988171.89 %3,957,577
Deaths56,033152.16 %2,593,996

Economy Statistics
Real Gross Domestic Product by State over Time (millions of chained 2009 dollars)Adj. Amount
RankChange Index
(YR 2009=100)
Change 2010 to 20146,409322.566

Per Capita Personal IncomeNumberRankPercent of U.S.
Per Capita Income - 2014$41,6133490.2 %
Per Capita Income - 2004 (adj. for inflation)$39,7583092.5 %
Per Capita Income - 1994 (adj. for inflation)$33,6012694.3 %
Per Capita Income - 1984 (adj. for inflation)$29,6462894.2 %
10-Year % Change4.7 %41
20-Year % Change23.8 %40
30-Year % Change40.4 %41