County Dossier
Clark County
Illinois | County
Population
15,266
Land Area
501.4 sq mi
Context
Nonmetro
Geography
County silhouette
- Land Area
- 501.4 sq mi
- Water Area
- 3.4 sq mi
- Water Share
- 0.7%
Terrain Layer
Open the county terrain view inside the atlas flow.
Population & Housing
Population
15,266
- Density
- 30.4 / sq mi
- Households
- 6,555
- Housing Units
- 7,307
- Median Age
- 42.6 years
Income & Economy
Median Household Income
$72,927
GDP
$715.46M
Real GDP Change+4.3%
- Per Capita Income
- $37,528
- Personal Income
- $837.39M
- Personal Income Per Capita
- $55,544
Classification
RUCC 8
Nonmetro
Urban population of fewer than 5,000, adjacent to a metro area
Relief
Min
434 ft
Mean
585 ft
Max
778 ft