Washington County (Illinois)

administration
Washington County Courthouse
US state :	Illinois
Administrative headquarters :	Nashville
Address of the administrative headquarters:	County Courthouse 101 E. St. Louis Street Nashville, IL 62263-2300
Foundation :	1818
Made up from:	St. Clair County
Area code :	001 618
Demographics
Residents :	14,716 (2010)
Population density :	10.1 inhabitants / km ²
geography
Total area :	1461 km²
Water surface :	4 km²
map

Website : washingtonco.illinois.gov

The Washington County is a county in the US -amerikanischen State Illinois . In 2010 , the county had 14,716 people and a population density of 10.1 people per square kilometer. The county seat is Nashville .

geography

The county is located in central southwest Illinois on the south bank of the Kaskaskia River . It has an area of 1461 km ² , of which 1461 km ^{2 is} water. The following neighboring counties border Washington County:

	Clinton County	Marion County
St. Clair County		Jefferson County
Randolph County	Perry County

history

Washington

Washington County was formed in 1818 from parts of St. Clair County. It was named after George Washington (1732–1799), the first President of the United States (1789–1797).

Territorial development

Washington County from its founding in 1818 to 1824
1824 until today

Demographic data

Population development
Census	Residents	± in%
1820	1517	-
1830	1675	10.4%
1840	4810	187.2%
1850	6953	44.6%
1860	13,731	97.5%
1870	17,599	28.2%
1880	21,112	20%
1890	19,262	-8.8%
1900	19,526	1.4%
1910	18,759	-3.9%
1920	18,035	-3.9%
1930	16,286	-9.7%
1940	15,801	-3%
1950	14,460	-8.5%
1960	13,569	-6.2%
1970	13,780	1.6%
1980	15,472	12.3%
1990	14,965	-3.3%
2000	15,148	1.2%
2010	14,716	-2.9%
Before 1900 1900–1990 2000 2010

As of the 2010 census , Washington County had 14,716 people in 6,013 households. The population density was 10.1 inhabitants per square kilometer. In the 6013 households there were statistically 2.41 people each.

The racial the population was composed of 97.9 percent white, 0.8 percent African American, 0.1 percent Native American, 0.3 percent Asian and other ethnic groups; 0.8 percent were descended from two or more races. Regardless of ethnicity, 1.5 percent of the population was Hispanic or Latino of any race.

21.3 percent of the population were under 18 years old, 61.4 percent were between 18 and 64 and 17.3 percent were 65 years or older. 49.6 percent of the population was female.

The median income for a household was 53,036 USD . The per capita income was $ 25,177. 8.4 percent of the population lived below the poverty line.

Washington County localities

Citys

Villages

Unincorporated Communities

^{1 - partly in Clinton , Jefferson and Marion Counties

2 - partly in Clinton and Marion Counties}

structure

Washington County is divided into 16 townships :

Township	Population (2010)	FIPS
Ashley Township	816	17-02544
Beaucoup Township	593	17-04442
Bolo Township	419	17-07172
Covington Township	418	17-17042
Du Bois Township	748	17-20877
Hoyleton Township	1142	17-36360
Irvington Township	1285	17-37790
Johannisburg Township	511	17-38453

Township	Population (2010)	FIPS
Lively Grove Township	688	17-44108
Nashville Township	3676	17-51713
Oakdale Township	594	17-54599
Okawville Township	1987	17-55483
Pilot Knob Township	555	17-59858
Plum Hill Township	537	17-60807
Richview Township	343	17-63732
Venedy Township	404	17-77434