County Dossier
Jefferson County
Illinois | County
Population
36,550
Land Area
571.2 sq mi
Context
Nonmetro
Geography
County silhouette
- Land Area
- 571.2 sq mi
- Water Area
- 12.6 sq mi
- Water Share
- 2.2%
Terrain Layer
Open the county terrain view inside the atlas flow.
Population & Housing
Population
36,550
- Density
- 64.0 / sq mi
- Households
- 14,820
- Housing Units
- 16,629
- Median Age
- 41.2 years
Income & Economy
Median Household Income
$63,118
GDP
$2.43B
Real GDP Change+1.2%
- Per Capita Income
- $33,038
- Personal Income
- $1.91B
- Personal Income Per Capita
- $52,893
Classification
RUCC 7
Nonmetro
Urban population of 5,000 to 20,000, not adjacent to a metro area
Relief
Min
408 ft
Mean
490 ft
Max
642 ft