Galveston County, Texas
County seat: Galveston · Population 372,207 (2025) · 379 sq mi
Galveston County is the 16th most populous of Texas's 254 counties, with 372,207 people (2025 estimate). Its county seat is Galveston. It is part of the Gulf Coast region, one of the 12 Texas Comptroller economic regions. The map shows its 13 cities and towns and the 3 neighboring counties.
Galveston County facts
- County seat
- Galveston
- Population (2025 estimate)
- 372,207 +6.1% since 2020
- Land area
- 379 sq mi 244th largest of 254
- Water area
- 495 sq mi
- Population density
- 981 per sq mi
- Established
- 1838
- Named after
- Galveston Bay estuary bay near Houston on the Texas Gulf Coast
- Largest city
- League City 117,255 in the county
- Median household income
- $86,105
- Cities and towns
- 13 plus 3 CDPs
- ZIP codes
- 19
- Time zone
- Central
- FIPS code
- 48167
Cities and towns in Galveston County
Galveston County has 13 incorporated cities, towns and villages. Populations count the people living inside Galveston County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| League City | City | 117,255 | Harris County |
| Texas City | City | 59,733 | Chambers County |
| Galveston (county seat) | City | 53,636 | |
| Friendswood | City | 30,709 | Harris County |
| Dickinson | City | 21,908 | |
| La Marque | City | 20,324 | |
| Santa Fe | City | 13,913 | |
| Hitchcock | City | 7,722 | |
| Kemah | City | 3,097 | |
| Bayou Vista | City | 1,755 | |
| Clear Lake Shores | City | 1,298 | |
| Tiki Island | Village | 1,119 | |
| Jamaica Beach | City | 1,071 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Bacliff | 9,541 | |
| San Leon | 6,458 | |
| Bolivar Peninsula | 2,951 |
ZIP codes in Galveston County
19 ZIP codes reach into Galveston County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 77510 also Brazoria County
- 77511 also Brazoria County
- 77517 also Brazoria County
- 77518
- 77539
- 77546 also Harris and Brazoria counties
- 77550
- 77551
- 77554
- 77555
- 77563
- 77565
- 77568
- 77573
- 77590
- 77591
- 77617
- 77623
- 77650
Population of Galveston County, 2020–2025
Galveston County grew by 21,525 people (+6.1%) between April 2020 and July 2025: 2,788 more births than deaths and a net gain of 18,818 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 351,586 |
| 2021 | 355,670 |
| 2022 | 357,747 |
| 2023 | 362,263 |
| 2024 | 367,367 |
| 2025 | 372,207 |
Neighboring counties
- Chambers County north · 57,594 people
- Brazoria County west · 419,080 people
- Harris County northwest · 5,045,026 people
Printable Galveston County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (179 KB)
- PNG (2400 px) (107 KB)
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Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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