Population overview
Brazoria County is home to roughly 419,080 people, making up about 1.32% of the total population of Texas. Within the Gulf Coast region, it ranks #3 of 7 counties by population. The combination of 1,387 square miles of land and 419,080 residents yields a density of about 302.1 people per square mile — typical of suburban Texas, with a mix of subdivisions, commercial corridors, and remaining rural land.
How Brazoria County compares
Compared with the other 253 Texas counties, Brazoria 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 Brazoria |
|---|---|---|
| Brazoria County | 419,080 | — |
| Gulf Coast region average | 1,022,840 | +144% |
| Texas county median | 18,916 | -95% |
| Largest in Texas (Harris) | 5,045,026 | +1104% |
Neighboring county populations
Brazoria County shares borders with 5 counties. Comparing population across an adjacent corridor often reveals commuting patterns, school-district pull, and economic gravity.
| County | Seat | Population | Density |
|---|---|---|---|
| Harris County | Houston | 5,045,026 | 2917.9 |
| Fort Bend County | Richmond | 975,191 | 1114.5 |
| Galveston County | Galveston | 372,207 | 932.8 |
| Wharton County | Wharton | 42,060 | 38.6 |
| Matagorda County | Bay City | 36,463 | 32.7 |
Frequently asked questions
What is the population of Brazoria County, Texas?+
Brazoria County has an estimated population of 419,080 residents, based on the most recent U.S. Census data.
What is the population density of Brazoria County?+
Brazoria County has a population density of approximately 302.1 people per square mile across its 1,387 sq mi of land area — characteristic of a suburban county.
Where does Brazoria County rank among Texas counties by population?+
Brazoria County ranks #14 out of 254 Texas counties by total population, accounting for roughly 1.32% of the state's total population.
What is the most populous county near Brazoria County?+
Among the 5 counties bordering Brazoria, Harris County is the most populous with about 5,045,026 residents.
How is Brazoria 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.