Richland County, IL Demographics
Richland County, IL is the 67th most populous of 102 counties in Illinois, with 15,813 residents across 360 square miles. That is about 44 people per square mile.
At the 2020 census
| Population | 15,813 |
|---|---|
| Land area | 360 sq mi |
| Density | 44 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Richland 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: Richland County, IL
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Richland County, IL — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Richland County, IL
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 9781 | 4,009 | 1.9 | 2,108 |
| Census Tract 9779 | 3,784 | 158.6 | 24 |
| Census Tract 9783 | 3,315 | 195.2 | 17 |
| Census Tract 9782 | 2,672 | 1.5 | 1,808 |
| Census Tract 9780 | 2,033 | 2.9 | 703 |
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.