Jefferson County is located in southern Illinois. The County Seat is Mount Vernon and the largest city is Mount Vernon. The Official Web Site is located at http://www.jeffersoncountyillinois.com/. The 2014 population estimate is 38,534 and the 2010 census population was 38,825. The land area is 571.17 square miles and there are 68 persons per square mile.
88.3% of the population is White, 8.8% is Black or African American, 2.3% is Hispanic or Latino, 0.8% is Asian, 0.3% is American Indian or Alaska Native, 0% is Native Hawaiian or Pacific Islander, and 1.7% is two or more races. 86.8% have a high school degree or higher, and 15.9% have a Bachelor degree or higher.
The median home value is $86,300, there are 15,288 households, an average of 2.40 persons per household. The per capita income is $22,620, the median household income is $42,981, and 16.5% of the persons in Jefferson County are considered below poverty level.
The total number of firms, at last estimate, was 2,846. Retail sales (in $1000) were $567,630, and sales per capita were $14,157. The percentage of black-owned firms is 3%, and the percentage of women-owned firms is 18.6%.
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