Population overview
McLennan County is home to roughly 272,020 people, making up about 0.86% of the total population of Texas. Within the Central Texas region, it ranks #7 of 76 counties by population. The combination of 1,042 square miles of land and 272,020 residents yields a density of about 261.1 people per square mile — typical of suburban Texas, with a mix of subdivisions, commercial corridors, and remaining rural land.
How McLennan County compares
Compared with the other 253 Texas counties, McLennan County sits in the top 10% of the population distribution. It belongs to the upper tier of Texas counties — sizable enough to support diverse local services and infrastructure.
| Comparison | Population | vs McLennan |
|---|---|---|
| McLennan County | 272,020 | — |
| Central Texas region average | 81,016 | -70% |
| Texas county median | 18,916 | -93% |
| Largest in Texas (Harris) | 5,045,026 | +1755% |
Neighboring county populations
McLennan County shares borders with 6 counties. Comparing population across an adjacent corridor often reveals commuting patterns, school-district pull, and economic gravity.
| County | Seat | Population | Density |
|---|---|---|---|
| Bell County | Belton | 402,248 | 379.8 |
| Coryell County | Gatesville | 85,592 | 81.4 |
| Hill County | Hillsboro | 39,503 | 41.1 |
| Limestone County | Groesbeck | 22,849 | 25.1 |
| Bosque County | Meridian | 18,918 | 19.1 |
| Falls County | Marlin | 17,869 | 23.2 |
Frequently asked questions
What is the population of McLennan County, Texas?+
McLennan County has an estimated population of 272,020 residents, based on the most recent U.S. Census data.
What is the population density of McLennan County?+
McLennan County has a population density of approximately 261.1 people per square mile across its 1,042 sq mi of land area — characteristic of a suburban county.
Where does McLennan County rank among Texas counties by population?+
McLennan County ranks #21 out of 254 Texas counties by total population, accounting for roughly 0.86% of the state's total population.
What is the most populous county near McLennan County?+
Among the 6 counties bordering McLennan, Bell County is the most populous with about 402,248 residents.
How is McLennan County's population measured?+
Population figures are sourced from the U.S. Census Bureau — the decennial census and annual American Community Survey (ACS) population estimates. See our methodology for full sourcing.