Texas / Galveston County

Galveston County

County · Texas · Houston metroAppraisal data 2026-07-20

Galveston County (county, the Houston metro, Texas): 124,976 homes, median value $318,095, tax rate about 1.99%, 34.2% in a FEMA high-risk flood zone. Flood zones, property taxes, home values and pipelines from public records.

124,976homes

$318,095median value, 2026

1.99%median tax rate

34.2%in FEMA high-risk flood zones

+14.7%value change since 2022

ZIP codes in Galveston County

Appraisal district data

ZIP	Homes	Median value	Tax rate	High-risk flood
77510	5,337	$314,073	2.07%	4%
77511	1,003	$307,320	1.84%	7%
77517	1,963	$360,000	1.84%	1%
77518	2,788	$206,973	2.01%	2%
77539	14,467	$279,460	2.28%	47%
77546	9,943	$510,482	1.99%	6%
77550	8,084	$318,715	1.72%	82%
77551	6,249	$270,930	1.72%	77%
77554	10,085	$537,460	1.70%	97%
77563	3,942	$260,045	2.20%	82%
77565	2,723	$358,640	1.66%	67%
77568	9,523	$238,160	2.21%	6%
77573	29,880	$372,110	1.66%	10%
77590	8,647	$191,712	2.22%	3%
77591	5,377	$234,260	2.27%	1%
77617	440	$411,345	1.54%	99%
77623	182	$167,010	1.54%	5%
77650	4,239	$400,000	1.35%	100%

Each ZIP page compares its neighborhoods. A ZIP that crosses a county line is counted here only for homes in this county.

Flood zones

FEMA data

42,640homes in a FEMA high-risk zone (A or V, 1% chance a year): 34.2% of mapped homes, above the 9.3% across the Houston metro.

26,533homes in the moderate zone (0.2% chance a year): 21.3%.

302homes with the lot center in a regulatory floodway, where building rules are strictest.

FEMA National Flood Hazard Layer, zone at the center of each lot, for the 124,584 homes with a mapped lot. Flooding outside mapped zones does happen; check the flood insurance claims history and an elevation certificate for a specific house.

Property taxes

Appraisal district data

1.99%median combined property tax rate (most homes fall between 1.54–2.96%).

$6,315yearly tax on the $318,095 median home at the full rate, before any exemption.

Taxing units on homes here

Taxing unit	Share of homes
Galveston County Road & Flood	100%
Galveston County	100%
College of the Mainland	44%
League City	29%
Clear Creek ISD	25%
Galveston College	22%
Galveston ISD	22%
Dickinson ISD	19%
Galveston City	18%
Texas City ISD	14%

Rates are the sum of every taxing unit on each property at 2025 adopted rates, the latest full year. Values from Galveston Central Appraisal District files dated 2026-07-20. Homestead exemptions and caps belong to the current owner and do not transfer to a buyer.

Homes and values

Appraisal district data

Measure	Value
Median market value, 2026	$318,095 (above the the Houston metro median of $292,237)
Median change in value, 2022–2026	+14.7% (same homes, 119,216 with values in both years)
Median year built	2000
Median living area	1,832 sq ft
Median lot size	7,847 sq ft

When the homes were built

Decade	Homes
1830s	2
1840s	3
1850s	9
1860s	18
1870s	43
1880s	113
1890s	191
1900s	234
1910s	255
1920s	267
1930s	398
1940s	1,024
1950s	4,921
1960s	9,347
1970s	11,302
1980s	13,027
1990s	13,125
2000s	23,231
2010s	19,465
2020s	12,931
2200s	3

Single-family homes, townhomes, condos and mobile homes on owned land. Market value is the appraisal district's estimate, not an appraisal or sale price.

Pipelines

Railroad Commission data

20,283homes within 500 ft of an in-service transmission pipeline.

38,821homes within 1,000 ft.

1,740 ftmedian distance from a home to the nearest line.

9,581homes with no transmission line within 3 miles.

Operators of lines within 1,000 ft of homes

Operator	Homes
Enterprise Products Operatingllc	7,915
Kinder Morgan Tejas Pipeline LLC	4,734
Energy Transfer Company	4,667
Genesis Pipeline Texas, L.P.	2,354

Straight-line distance from the center of each lot to the nearest in-service transmission line on the Texas Railroad Commission's map. Distribution gas lines are not included.

Look up a house in Galveston County

Street address

Each house report shows its own value history, tax units, flood zone at the center of the lot and the nearest pipeline.