Population overview
Galveston County is home to roughly 372,207 people, making up about 1.17% of the total population of Texas. Within the Gulf Coast region, it ranks #4 of 7 counties by population. The combination of 399 square miles of land and 372,207 residents yields a density of about 932.8 people per square mile — typical of suburban Texas, with a mix of subdivisions, commercial corridors, and remaining rural land.
How Galveston County compares
Compared with the other 253 Texas counties, Galveston 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 Galveston |
|---|---|---|
| Galveston County | 372,207 | — |
| Gulf Coast region average | 1,022,840 | +175% |
| Texas county median | 18,916 | -95% |
| Largest in Texas (Harris) | 5,045,026 | +1255% |
Neighboring county populations
Galveston County shares borders with 3 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 |
| Brazoria County | Angleton | 419,080 | 302.1 |
| Chambers County | Anahuac | 57,594 | 96.2 |
Frequently asked questions
What is the population of Galveston County, Texas?+
Galveston County has an estimated population of 372,207 residents, based on the most recent U.S. Census data.
What is the population density of Galveston County?+
Galveston County has a population density of approximately 932.8 people per square mile across its 399 sq mi of land area — characteristic of a suburban county.
Where does Galveston County rank among Texas counties by population?+
Galveston County ranks #16 out of 254 Texas counties by total population, accounting for roughly 1.17% of the state's total population.
What is the most populous county near Galveston County?+
Among the 3 counties bordering Galveston, Harris County is the most populous with about 5,045,026 residents.
How is Galveston 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.