Galveston, TX GIS Map
Galveston is a city in Galveston County, Texas, with a population of about 50,497. The map below shows its location, boundary and surrounding roads, with federal GIS layers you can turn on for the area.
- County
- Galveston County
- Population
- 50,497
- Elevation
- 6 ft
- Coordinates
- 29.3013, -94.7977
- ZIP codes (6)
- 77550, 77551, 77552, 77553, 77554, 77555
- Land area
- 41 sq mi
- Time zone
- America/Chicago
About Galveston, TX
Galveston is a resort city and port on the Gulf Coast of the U.S. state of Texas. It encompasses 211.31 square miles (547.3 km2) on Galveston Island and Pelican Island. As of the 2020 census, the city had a population of 53,695, making it the second-largest municipality in Galveston County, where it also serves as the county seat. Located at the southern end of the Greater Houston metropolitan area, Galveston sits on the northwestern coast of the Gulf of Mexico.
Source: Wikipedia (CC BY-SA 4.0)
Cities Near Galveston
- League City, TX23 mi
- Baytown, TX32 mi
- Pearland, TX35 mi
- Pasadena, TX37 mi
- Houston, TX47 mi
- Missouri City, TX50 mi
- Sugar Land, TX55 mi
- Port Arthur, TX65 mi
Other Cities in Galveston County
GIS Data for Galveston, TX
The Galveston map loads live federal GIS layers in your browser, so you can check flood zones, terrain, land cover and district boundaries for any address in Galveston without a separate GIS login. Everything below is drawn from public U.S. government data.
Layers you can turn on
FEMA flood zones
National Flood Hazard Layer — flood insurance rate map zones.
Elevation contours and hillshade
USGS 3DEP terrain, so you can read slope and relief.
Land cover
NLCD land cover classes — forest, developed, wetland, water.
School districts
Census TIGER unified and elementary school district boundaries.
ZIP code and county boundaries
Census TIGER ZCTA and county boundary lines.
Map tools
Measure distance and area
Draw a line or polygon to get length in miles or area in acres.
Sketch and annotate
Add points, lines and shapes on top of the map.
Inspect any point
Click the map to read coordinates, elevation and the layers under your cursor.
Download the map
Save the current view as a PNG image.
Galveston Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
53,424
Households
25,198
Median household income
$55,631
Median age
41.5 years
Median home value
$326,000
Median gross rent
$1,298/mo
Owner-occupied homes
46.2%
Bachelor's degree or higher
36%
Below poverty level
21.4%
Land area
41 sq mi
Population density
1,302 / sq mi
County
Galveston Population Growth
Source: U.S. Census Bureau, 2010 Census and Population Estimates Program (Vintage 2024: April 2020 estimates base and July 1, 2024 estimate).
2010 Census
47,743
April 2020 (estimates base)
53,695
July 2024 estimate
53,538
Change 2010-2020
+12.5%
Change 2020-2024
-0.3%
Photos of Galveston
Hover over a photo to see it larger. Tap on mobile.
Photos from Wikimedia Commons, taken in or near Galveston. Credits and licenses are shown in the larger view.
Federal Buildings & Leases in Galveston
GSA-managed federal properties in and around Galveston.
| Property | Address | Status | Sq ft | Lease ends |
|---|---|---|---|---|
| Galveston Uspo/Courthouse | 601 25th St, 77550 | Owned | 94,395 | — |
Source: U.S. GSA Inventory of Owned and Leased Properties (data.gov), September 2026.
Soils of Galveston
General soil map unit at the city center: Water
Soil Properties
Soil Components
- Water100%
Source: USDA NRCS U.S. General Soil Map (STATSGO2). General soil map data (1:250,000 scale) is not suitable for site-specific decisions.
Climate of Galveston
30-year averages (1991–2020) from the Galveston Scholes Fld, Tx weather station, elevation 5 ft, 4.2 miles from the city center.
Warmest month
Aug · avg high 92°F
Coldest month
Jan · avg low 49°F
Annual precipitation
47.2 in
Annual snowfall
0.1 in
Average Monthly Temperatures (°F)
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 63 | 66 | 72 | 78 | 84 | 90 | 91 | 92 | 89 | 82 | 72 | 66 |
| Avg low °F | 49 | 52 | 58 | 65 | 72 | 78 | 80 | 80 | 76 | 69 | 59 | 52 |
| Precip. in | 4.30 | 2.14 | 3.02 | 2.06 | 3.04 | 4.23 | 3.41 | 4.71 | 6.65 | 5.15 | 4.28 | 4.23 |
| Snow in | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 |
Source: NOAA NCEI U.S. Climate Normals, 1991–2020. Conditions at the station may differ from other parts of the city.
Natural Hazard Risk in Galveston
FEMA National Risk Index ratings for Galveston County, compared with all U.S. counties.
Overall risk
Score 95.4 of 100
Expected annual loss
Buildings, population & agriculture
Social vulnerability
Susceptibility to hazard impacts
Community resilience
Ability to prepare & recover
Risk by Hazard
- Cold WaveVery High
- LightningVery High
- HurricaneRelatively High
- DroughtRelatively High
- TornadoRelatively High
- Inland FloodingRelatively High
- Heat WaveRelatively Moderate
- Ice StormRelatively High
- Coastal FloodingRelatively High
- WildfireRelatively Low
- HailRelatively Low
- EarthquakeVery Low
- Strong WindRelatively Moderate
- LandslideVery Low
- Winter WeatherVery Low
Source: FEMA National Risk Index (December 2025 release). County-level ratings are relative to other U.S. counties and are not a property-specific assessment.
Galveston FAQ
What county is Galveston in?
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Galveston, Texas is located in Galveston County.
What is the population of Galveston?
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Galveston has a population of about 50,497, making it the number 62 of the 100 Texas cities listed on GIS Map.
What is the elevation of Galveston?
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The elevation of Galveston is approximately 6 feet (2 meters) above sea level at the city center.
What ZIP codes are in Galveston?
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ZIP codes for Galveston include 77550, 77551, 77552, 77553, 77554, 77555.
What time zone is Galveston in?
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Galveston is in the Central Time zone (America/Chicago).
How far is Galveston from Austin?
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Galveston is about 189 miles from Austin, the capital of Texas, in a straight line.
How far is Galveston from Houston?
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Galveston is about 47 miles from Houston, the largest city in Texas listed on GIS Map, in a straight line.
What cities are near Galveston?
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Cities near Galveston include League City, TX (23 miles); Baytown, TX (32 miles); Pearland, TX (35 miles); Pasadena, TX (37 miles); Houston, TX (47 miles).
Local notes for Galveston, TX
Questions and local knowledge from people who know the area. Every note is read before it appears here.