Allen County, KS Demographics
Allen County, KS is the 36th most populous of 105 counties in Kansas, with 12,526 residents across 500 square miles. That is about 25 people per square mile.
At the 2020 census
| Population | 12,526 |
|---|---|
| Land area | 500 sq mi |
| Density | 25 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Allen 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: Allen County, KS
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Allen County, KS — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Allen County, KS
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 9528 | 3,813 | 12.1 | 315 |
| Census Tract 9530 | 2,683 | 112.4 | 24 |
| Census Tract 9529 | 2,230 | 12.3 | 182 |
| Census Tract 9527 | 2,009 | 92.7 | 22 |
| Census Tract 9526 | 1,791 | 270.9 | 7 |
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.