Mercer County, Illinois

administration
The Mercer County Courthouse in Aledo, listed on NRHP # 82002589
US state :	Illinois
Administrative headquarters :	Aledo
Address of the administrative headquarters:	Mercer County Courthouse P.O. Box 86, Aledo, IL 61231
Foundation :	January 13, 1825
Made up from:	Free territory
Area code :	001 309
Demographics
Residents :	16,434 (2010)
Population density :	11.5 inhabitants / km ²
geography
Total area :	1453 km²
Water surface :	20 km²
map

The Mercer County is a county in the US -amerikanischen State Illinois . In 2010 , the county had 16,434 residents and a population density of 11.5 people per square kilometer. The county seat is Aledo .

geography

The county is located in northeast Illinois on the Mississippi River , which forms the border with Iowa . It has an area of 1453 square kilometers, of which 20 square kilometers are water. The following neighboring counties border Mercer County:

	Rock Island County
Louisa County, Iowa		Henry County
Des Moines County, Iowa	Warren County , Henderson County	Knox County

history

Mercer

Population development
Census	Residents	± in%
1830	26th	-
1840	2352	8,946.2%
1850	5246	123%
1860	15,042	186.7%
1870	18,769	24.8%
1880	19,502	3.9%
1890	18,545	-4.9%
1900	20,945	12.9%
1910	19,723	-5.8%
1920	18,800	-4.7%
1930	16,641	-11.5%
1940	17,701	6.4%
1950	17,374	-1.8%
1960	17,149	-1.3%
1970	17,294	0.8%
1980	19,286	11.5%
1990	17,290	-10.3%
2000	16,957	-1.9%
2010	16,434	-3.1%
Before 1900 1900–1990 2000 2010

Mercer County was formed on January 13, 1825 from territory that was designated as free - but actually populated by Indians . It was named after Hugh Mercer (1726–1777), a general in the Continental Army who fell at the Battle of Princeton .

Territorial development

Mercer County from its founding in 1825 to 1827
1827 until today

Demographic data

According to the 2010 census , Mercer County had 16,434 people in 6,714 households. The population density was 11.5 inhabitants per square kilometer. Statistically, 2.40 people lived in each of the 6,714 households.

The racial the population was composed of 98.3 percent white, 0.3 percent African American, 0.1 percent Native American, 0.3 percent Asian and other ethnic groups; 0.7 percent were descended from two or more races. Hispanic or Latino of any race was 1.9 percent of the population.

22.6 percent of the population were under 18 years old, 59.1 percent were between 18 and 64 and 18.3 percent were 65 years or older. 50.6 percent of the population was female.

The median income for a household was 54,533 USD . The per capita income was $ 25,081. 9.4 percent of the population lived below the poverty line.

Towns in Mercer County

Citys

Villages

Unincorporated Communities

^{1 - partly in Warren County

2 - partly in Rock Island County

3 - partly in Henry County}

structure

Mercer County is divided into 15 townships :

Township	Population (2010)	FIPS
Abington Township	392	17-00126
Duncan Township	272	17-20968
Eliza Township	419	17-23152
Greene Township	1640	17-31342
Keithsburg Township	687	17-39311
Mercer Township	4071	17-48398
Millersburg Township	755	17-49256
New Boston Township	1204	17-52233

Township	Population (2010)	FIPS
North Henderson Township	421	17-53806
Ohio Grove Township	279	17-55405
Perryton Township	474	17-59182
Preemption Township	1783	17-61795
Richland Grove Township	2300	17-63628
Rivoli Township	1142	17-64551
Suez Township	595	17-73339