County Dossier
Marion County
Illinois | County
Population
37,000
Land Area
572.5 sq mi
Context
Nonmetro
Geography
County silhouette
- Land Area
- 572.5 sq mi
- Water Area
- 3.6 sq mi
- Water Share
- 0.6%
Terrain Layer
Open the county terrain view inside the atlas flow.
Population & Housing
Population
37,000
- Density
- 64.6 / sq mi
- Households
- 15,512
- Housing Units
- 17,334
- Median Age
- 41.5 years
Income & Economy
Median Household Income
$61,240
GDP
$1.76B
Real GDP Change+0.1%
- Per Capita Income
- $32,825
- Personal Income
- $2.04B
- Personal Income Per Capita
- $56,066
Classification
RUCC 7
Nonmetro
Urban population of 5,000 to 20,000, not adjacent to a metro area
Relief
Min
421 ft
Mean
535 ft
Max
652 ft