St. Clair County (Illinois)

administration
St. Clair County Courthouse
US state :	Illinois
Administrative headquarters :	Belleville
Address of the administrative headquarters:	St. Clair County Office 10 Public Square Belleville, IL 62220
Foundation :	April 27, 1790
Made up from:	Original County
Area code :	001 618
Demographics
Residents :	270,056 (2010 estimate)
Population density :	157 inhabitants / km ²
geography
Total area :	1746 km²
Water surface :	26 km²
map

Website : www.co.st-clair.il.us

The St. Clair County is a county in the US -amerikanischen State Illinois . In 2010 , the county had 270,056 residents and a population density of 157 people per square kilometer. The county seat is Belleville .

St. Clair County is located in the eastern part of the Greater St. Louis metropolitan area known as Metro-East around the city of St. Louis in neighboring Missouri .

geography

The county is located in southwest Illinois on the Mississippi River , which forms the border with Missouri. It has an area of 1746 km², of which 26 km² are water. The following neighboring counties border St. Clair County:

	Madison County	Clinton County
St. Louis, Missouri ¹ St. Louis County, Missouri		Washington County
Monroe County	Randolph County

^{1 - this is not a county, but an independent city ( independent city )}

history

Arthur St. Clair

St. Clair County was formed on April 27, 1790 as the first county in the then Illinois Territory and comprised about a quarter of the later state of Illinois. It was named after Arthur St. Clair (1736–1818), President of the Continental Congress (1787–1787), General of the Continental Army in the War of Independence (1775–1783) and Governor of the Northwest Territory (1788–1802).

Demographic data

Population development
Census	Residents	± in%
1800	1255	-
1810	5007	299%
1820	5248	4.8%
1830	7078	34.9%
1840	13,631	92.6%
1850	20,180	48%
1860	37,694	86.8%
1870	51,068	35.5%
1880	61,806	21%
1890	66,571	7.7%
1900	86,685	30.2%
1910	119,870	38.3%
1920	136,520	13.9%
1930	157.775	15.6%
1940	166,899	5.8%
1950	205.995	23.4%
1960	262.509	27.4%
1970	285.176	8.6%
1980	267,531	-6.2%
1990	262,852	-1.7%
2000	256.082	-2.6%
2010	270.056	5.5%
Before 1900 1900–1990 2000 2010

The Mermaid House Hotel from 1842, listed on NRHP No. 75002078

According to the 2010 census , St. Clair County had 270,056 people in 102,488 households. The population density was 157 people per square kilometer. Statistically, 2.51 people lived in 102,488 households.

The racial the population was composed of 64.6 percent white, 30.5 percent African American, 0.2 percent Native American, 1.2 percent Asian and other ethnic groups; 2.2 percent were descended from two or more races. Hispanic or Latino of any race was 3.3 percent of the population.

25.3 percent of the population were under 18 years old, 62.1 percent were between 18 and 64 and 12.6 percent were 65 years or older. 52.2 percent of the population was female.

The median income for a household was 46,368 USD . The per capita income was $ 24,316. 17.1 percent of the population lived below the poverty line.

St. Clair County localities

Citys

Villages

Census-designated places (CDP)

Other Unincorporated Communities

^{1 - mostly in Madison County

2 - partly in Monroe County

3 - partly in Madison County

4 - partly in Clinton County}

structure

St. Clair County is divided into 22 townships :

Township	Population (2010)	FIPS
Belleville Township	44,478	17-04858
Canteen Township	10,263	17-10968
Caseyville Township	31,996	17-11657
Centerville Township	25,386	17-12210
East St. Louis Township	27.006	17-22268
Engelmann Township	726	17-24205
Fayetteville Township	1668	17-25726
Freeburg Township	5109	17-27819
Lebanon Township	4538	17-42509
Lenzburg Township	1047	17-42873
Marissa Township	2468	17-46968

Township	Population (2010)	FIPS
Mascoutah Township	8217	17-47436
Millstadt Township	6718	17-49399
New Athens Township	2657	17-52129
O'Fallon Township	26,053	17-55262
Prairie Du Long Township	2244	17-61600
St. Clair Township	35,498	17-66729
Shiloh Valley Township	11,631	17-69550
Smithton Township	4275	17-70265
Stites Township	749	17-72741
Stookey Township	10,007	17-72988
Sugar Loaf Township	7322	17-73456

^Stites ^Canteen ^{Casey- ville} ^O'Fallon ^Lebanon ^{mass coutah} ^{angelic man} ^{Fayette- ville} ^Marissa ^Lenzburg ^{New Athens} ^{Prairie Du Long} ^Millstadt ^{Sugar Loaf} ^Centerville ^{East St. Louis} ^Belleville ^{St. Clair} ¹ ¹ ^{Shiloh Valley} ^Freeburg ^Smithton ^Stookey ^{1 - to St. Clair Township}

Individual evidence

↑ GNIS-ID: 1784987. Retrieved on February 22, 2011 (English).

↑ ^a ^b ^c U.S. Census Bureau, State & County QuickFacts - St. Clair County, IL Retrieved January 1, 2013

↑ ^a ^b National Association of Counties. Retrieved January 1, 2013

^ US Census Bureau - Census of Population and Housing.Retrieved March 15, 2011

^ Extract from Census.gov.Retrieved February 15, 2011

^ Extract from the National Register of Historic Places . Retrieved March 13, 2011

↑ Missouri Census Data Center - Illinois ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. Retrieved January 1, 2013@1@ 2Template: Dead Link / mcdc.missouri.edu

Web links

Commons : St. Clair County, Illinois - Collection of pictures, videos, and audio files

38.47 -89.93Coordinates: 38 ° 28 ′ N , 89 ° 56 ′ W

[1] GNIS-ID: 1784987. Retrieved on February 22, 2011 (English).

[U.S._Census_Buero,_State_&_County_QuickFacts-2] U.S. Census Bureau, State & County QuickFacts - St. Clair County, IL Retrieved January 1, 2013

[naco-3] National Association of Counties. Retrieved January 1, 2013

[4] US Census Bureau - Census of Population and Housing.Retrieved March 15, 2011

[5] Extract from Census.gov.Retrieved February 15, 2011

[6] Extract from the National Register of Historic Places . Retrieved March 13, 2011