Galveston County, Texas ZIP codes
23 ZIP codes are in Galveston County, plus 1 that cross in from neighboring counties. It's part of the Houston-Pasadena-The Woodlands, TX metro area.
- ZIP codes
- 23
- Population in these ZIPs
- 379,967
- Avg. median income
- $93,600population-weighted
- Cities & towns
- 13
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Galveston County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 77510 | Santa Fe | 14,155 | $102,651 | $328,600 |
| 77517 | Santa Fe | 5,529 | $88,567 | $386,000 |
| 77518 | Bacliff | 9,541 | $51,458 | $214,300 |
| 77539 | Dickinson | 49,375 | $89,111 | $282,900 |
| 77546 | Friendswood | 54,789 | $123,756 | $397,800 |
| 77549 PO Box | Friendswood | — | — | — |
| 77550 | Galveston | 23,489 | $45,047 | $280,800 |
| 77551 | Galveston | 21,696 | $58,344 | $243,700 |
| 77552 PO Box | Galveston | — | — | — |
| 77553 PO Box | Galveston | — | — | — |
| 77554 | Galveston | 10,414 | $86,490 | $516,000 |
| 77555 | Galveston | 2 | — | — |
| 77563 | Hitchcock | 9,955 | $75,806 | $252,700 |
| 77565 | Kemah | 6,943 | $95,268 | $365,300 |
| 77568 | La Marque | 23,083 | $74,694 | $252,300 |
| 77573 | League City | 98,109 | $122,722 | $383,800 |
| 77574 PO Box | League City | — | — | — |
| 77590 | Texas City | 31,642 | $65,801 | $183,900 |
| 77591 | Texas City | 18,294 | $68,593 | $238,800 |
| 77592 PO Box | Texas City | — | — | — |
| 77617 | Gilchrist | 44 | $75,703 | — |
| 77623 | High Island | 585 | $88,375 | — |
| 77650 | Port Bolivar | 2,322 | $61,745 | $379,600 |
ZIP codes partly in Galveston County
These ZIP codes are mostly in a neighboring county but cover part of Galveston County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 77511 | Alvin | Brazoria County | 51,892 | $74,939 | $293,500 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Galveston County
Nearby counties
Frequently asked questions
How many ZIP codes are in Galveston County, Texas?
23 ZIP codes are mainly in Galveston County, and 1 more ZIP codes from neighboring areas reach partly into it.
What cities are in Galveston County?
ZIP codes in Galveston County use the city names Bacliff, Dickinson, Friendswood, Galveston, Gilchrist, High Island, Hitchcock, Kemah, La Marque, League City, Port Bolivar and Santa Fe and others.
What metro area is Galveston County in?
Galveston County is part of the Houston-Pasadena-The Woodlands, TX metropolitan statistical area.