Rock Island County

administration
Rock Island County Courthouse
US state :	Illinois
Administrative headquarters :	Rock Island
Address of the administrative headquarters:	Rock Island County Office Building 1504 Third Avenue Rock Island IL 61201
Foundation :	February 9, 1831
Made up from:	Jo Daviess County
Area code :	001 309
Demographics
Residents :	147,546 (2010)
Population density :	133.5 inhabitants / km ²
geography
Total area :	1168 km²
Water surface :	63 km²
map

Website : www.rockislandcounty.org

The skirt Iceland County is a county in the US -amerikanischen State Illinois . In 2010 , the county had 147,546 residents and a population density of 133.5 people per square kilometer. The county seat is Rock Island .

Rock Island County is located in the center of the Quad Cities Metropolitan Area , the metropolitan area around the Quad Cities .

geography

The county is located in northwest Illinois at the confluence of the Rock River with the Mississippi , which forms the border with Iowa . It has an area of 1168 km², of which 63 km² are water. The following neighboring counties border Rock Island County:

Scott County, Iowa	Clinton County, Iowa	Whiteside County
Muscatine County, Iowa
Louisa County, Iowa	Mercer County	Henry County

history

Rock Island County was formed on February 8, 1831 from Jo Daviess County . It was named after Rock Island in the Mississippi River .

Demographic data

Population development
Census	Residents	± in%
1840	2610	-
1850	6937	165.8%
1860	21.005	202.8%
1870	29,783	41.8%
1880	38,302	28.6%
1890	41,917	9.4%
1900	55,249	31.8%
1910	70,404	27.4%
1920	92.297	31.1%
1930	98.191	6.4%
1940	113,323	15.4%
1950	133,558	17.9%
1960	150.991	13.1%
1970	166,734	10.4%
1980	165.968	-0.5%
1990	148.723	-10.4%
2000	149.374	0.4%
2010	147,546	-1.2%
Before 1900 1900–1990 2000 2010

As of the 2010 census , Rock Island County had 147,546 people in 60,300 households. The population density was 133.5 inhabitants per square kilometer. Statistically, 2.35 people lived in the 60,300 households.

The racial the population was composed of 81.6 percent white, 9.0 percent African American, 0.3 percent Native American, 1.6 percent Asian and other ethnic groups; 3.0 percent were descended from two or more races. Hispanic or Latino of any race was 11.6 percent of the population.

22.5 percent of the population were under 18 years old, 61.3 percent were between 18 and 64 and 16.2 percent were 65 years or older. 50.9 percent of the population was female.

The median income for a household was 48,668 USD . The per capita income was $ 24,476. 11.2 percent of the population lived below the poverty line.

Rock Island County localities

Citys

Villages

Unincorporated Communities

^{1 - partly in Henry County

2 - partly in Mercer County}

structure

Rock Island County is divided into 18 townships :

Township	Population (2010)	FIPS
Andalusia Township	2299	17-01439
Blackhawk Township	10,019	17-06301
Bowling Township	3414	17-07549
Buffalo Prairie Township	824	17-09512
Canoe Creek Township	711	17-10955
Coal Valley Township	4408	17-15248
Coe Township	1657	17-15326
Cordova Township	896	17-16379
Drury Township	797	17-20825

Township	Population (2010)	FIPS
Edgington Township	1508	17-22632
Hampton Township	21,711	17-32577
Moline Township	23,529	17-49880
Port Byron Township	1446	17-61236
Rock Island Township	17,776	17-65091
Rural township	988	17-66300
South Moline Township	36,399	17-70993
South Rock Island Township	18,407	17-71201
Zuma Township	757	17-84246