Johnson County is located in southern Illinois. The County Seat is Vienna and the largest city is Vienna. The Official Web Site is located at http://votejohnsoncounty.com/. The 2014 population estimate is 12,601 and the 2010 census population was 12,582. The land area is 343.92 square miles and there are 36.6 persons per square mile.
90.1% of the population is White, 8.4% is Black or African American, 3.2% is Hispanic or Latino, 0.3% is Asian, 0.3% is American Indian or Alaska Native, 0% is Native Hawaiian or Pacific Islander, and 0.9% is two or more races. 83.4% have a high school degree or higher, and 15.1% have a Bachelor degree or higher.
The median home value is $89,800, there are 4,362 households, an average of 2.45 persons per household. The per capita income is $18,763, the median household income is $40,760, and 14.1% of the persons in Johnson County are considered below poverty level.
The total number of firms, at last estimate, was 713. Retail sales (in $1000) were $65,543, and sales per capita were $4,788. The percentage of black-owned firms is 0%, and the percentage of women-owned firms is 37.7%.
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