De Witt County, IL Demographics
De Witt County, IL is the 70th most populous of 102 counties in Illinois, with 15,516 residents across 398 square miles. That is about 39 people per square mile.
At the 2020 census
| Population | 15,516 |
|---|---|
| Land area | 398 sq mi |
| Density | 39 / sq mi |
Data: 2020 Census · American Community Survey 2024
How De Witt County compares to the US
We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.
Central Location: De Witt County, IL
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around De Witt County, IL — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in De Witt County, IL
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 9716 | 3,589 | 151.2 | 24 |
| Census Tract 9718 | 3,562 | 3.1 | 1,152 |
| Census Tract 9717 | 3,271 | 1.8 | 1,841 |
| Census Tract 9715 | 2,601 | 184.2 | 14 |
| Census Tract 9714 | 2,493 | 57.2 | 44 |
Related places
About this page
This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.
Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.