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  5. Mercer County

Where is Mercer County, Illinois?

location of Mercer county on a map

Mercer County is a county equivalent area found in Illinois, USA. The county government of Mercer is found in the county seat of Aledo.

With a total 1,472.91 sq. km of land and water area, Mercer County, Illinois is the 1940th largest county equivalent area in the United States. Home to 15,945 people, Mercer County has a total 7358 households earning 53136 on average per year.

Mercer County, Illinois - Quick Facts

FIPS Code 17131
Area Codes 309
Time Zone CST
Major Cities Aledo (population: 5,553), Sherrard (population: 2,563), Viola (population: 1,531), New Boston (population: 1,484), Alexis (population: 1,314), New Windsor (population: 1,197), Joy (population: 845), Keithsburg (population: 750), Matherville (population: 523), Seaton (population: 400)
Land Area 6,156 sq miles
Water Area 561 sq miles
Household Income $53,136
Housing Units 7,358
Median Home Value $98,100
High School Grads 91% of population
Holders of Bachelors Degrees 15% of population
Retail Spending $5,191 per capita
Food & Accomodation Sales $5,605 per capita

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This page was last updated on June 30, 2016.