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Where is Johnson County, Illinois?

location of Johnson county on a map

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

With a total 903.55 sq. km of land and water area, Johnson County, Illinois is the 2734th largest county equivalent area in the United States. Home to 12,601 people, Johnson County has a total 5527 households earning 40760 on average per year.

Johnson County, Illinois - Quick Facts

FIPS Code 17087
Area Codes 618
Time Zone CST
Major Cities Vienna (population: 5,358), Goreville (population: 3,161), Ozark (population: 1,217), Buncombe (population: 1,182), Simpson (population: 833), Grantsburg (population: 717), Cypress (population: 523), New Burnside (population: 330)
Land Area 4,865 sq miles
Water Area 344 sq miles
Household Income $40,760
Housing Units 5,527
Median Home Value $89,800
High School Grads 83% of population
Holders of Bachelors Degrees 15% of population
Retail Spending $4,788 per capita
Food & Accomodation Sales $6,806 per capita

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This page was last updated on June 30, 2016.