McClain County, OK Demographics
McClain County, OK is the 24th most populous of 77 counties in Oklahoma, with 41,662 residents across 571 square miles. That is about 73 people per square mile.
At the 2020 census
| Population | 41,662 |
|---|---|
| Land area | 571 sq mi |
| Density | 73 / sq mi |
Data: 2020 Census · American Community Survey 2024
How McClain 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: McClain County, OK
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around McClain County, OK — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in McClain County, OK
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 4003 | 5,624 | 14.4 | 392 |
| Census Tract 4001.03 | 5,572 | 62.1 | 90 |
| Census Tract 4001.06 | 5,559 | 32.2 | 173 |
| Census Tract 4001.04 | 5,465 | 18.7 | 292 |
| Census Tract 4002.04 | 5,410 | 73.8 | 73 |
| Census Tract 4002.03 | 4,925 | 83.9 | 59 |
| Census Tract 4001.05 | 4,063 | 11.6 | 349 |
| Census Tract 4002.01 | 3,861 | 172.4 | 22 |
| Census Tract 4004 | 1,183 | 101.6 | 12 |
Related places
Other counties nearby
Nearest counties
Metro areas containing McClain 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.