County Dossier
Shelby County
Illinois | County
Population
20,720
Land Area
758.5 sq mi
Context
Nonmetro
Geography
County silhouette
- Land Area
- 758.5 sq mi
- Water Area
- 9.6 sq mi
- Water Share
- 1.2%
Terrain Layer
Open the county terrain view inside the atlas flow.
Population & Housing
Population
20,720
- Density
- 27.3 / sq mi
- Households
- 8,918
- Housing Units
- 10,060
- Median Age
- 45.3 years
Income & Economy
Median Household Income
$72,095
GDP
$1.10B
Real GDP Change+2.0%
- Per Capita Income
- $34,820
- Personal Income
- $1.16B
- Personal Income Per Capita
- $56,517
Classification
RUCC 8
Nonmetro
Urban population of fewer than 5,000, adjacent to a metro area
Relief
Min
508 ft
Mean
639 ft
Max
816 ft