Knox County, IN Demographics
Knox County, IN is the 43rd most populous of 92 counties in Indiana, with 36,282 residents across 516 square miles. That is about 70 people per square mile.
At the 2020 census
| Population | 36,282 |
|---|---|
| Land area | 516 sq mi |
| Density | 70 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Knox 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: Knox County, IN
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Knox County, IN — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Knox County, IN
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 9559 | 5,422 | 146.5 | 37 |
| Census Tract 9557 | 4,768 | 3.8 | 1,244 |
| Census Tract 9552.02 | 3,968 | 26.6 | 149 |
| Census Tract 9558 | 3,376 | 140.9 | 24 |
| Census Tract 9550 | 3,182 | 3.4 | 926 |
| Census Tract 9555 | 2,962 | 1.2 | 2,419 |
| Census Tract 9553 | 2,906 | 0.9 | 3,146 |
| Census Tract 9556 | 2,840 | 0.9 | 3,124 |
| Census Tract 9551 | 2,814 | 115.3 | 24 |
| Census Tract 9554 | 2,091 | 0.5 | 4,085 |
| Census Tract 9552.01 | 1,953 | 75.8 | 26 |
Related places
Other counties nearby
Nearest counties
Metro areas containing Knox County
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.