Randolph County, IL Demographics
Randolph County, IL is the 47th most populous of 102 counties in Illinois, with 30,163 residents across 575 square miles. That is about 52 people per square mile.
At the 2020 census
| Population | 30,163 |
|---|---|
| Land area | 575 sq mi |
| Density | 52 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Randolph 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: Randolph County, IL
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Randolph County, IL — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Randolph County, IL
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 9508 | 4,681 | 33.5 | 140 |
| Census Tract 9506 | 4,181 | 11.3 | 369 |
| Census Tract 9511 | 3,358 | 24.4 | 138 |
| Census Tract 9509 | 3,193 | 146.5 | 22 |
| Census Tract 9512.02 | 3,082 | 45.4 | 68 |
| Census Tract 9513 | 2,811 | 11.1 | 253 |
| Census Tract 9510 | 2,587 | 140.9 | 18 |
| Census Tract 9507 | 2,424 | 88.4 | 27 |
| Census Tract 9505 | 2,063 | 68.6 | 30 |
| Census Tract 9512.01 | 1,783 | 5.2 | 340 |
Related places
Other counties nearby
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.