Galveston County, Texas
29 ZIP codes · Avg score 92/100 · Grade A
ZipCheckup grade for Galveston County: A.
Checked records flag no major concern; missing data is unknown.
Looking at the composite Home Safety Score, Galveston County comes out in the A-B range, and the reports for its 29 ZIP codes show which data sit behind that result.
How Galveston County Compares
How Galveston County Compares
Galveston County scores 9 points above the Texas state average (83/100) and 19 points above the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData
ZIP Code Risk Map
Water Quality Map: Galveston County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.3 (asthma 9.8%, diabetes 12.3%)
Modeled additional annual cost estimate per homeowner: $4,629, largest modeled factor: Sea Level
38% of homes built before 1980 (lead paint was banned for residential use in 1978)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $4,629
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
172,395 housing units in Galveston County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Galveston County
Modeled remediation costs in Galveston County can be compared with the median property value; actual costs vary by property.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Galveston County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Galveston County ZIP codes
8 community water systems mapped to Galveston County ZIP codes; EPA may list more systems serving the county.
- B
- A
- A
- A
- B
- A
Show all 8 water systems
- A
- A
35 water systems mapped to Galveston County ZIP codes in our data; EPA may list more systems serving the county.
Systems with the most violations in Galveston County
5 water systems with violations in EPA records.
- B
All ZIP Codes in Galveston County
29 ZIP codes tracked in Galveston County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 77565 | Kemah | 100 | A | 1 | $377K |
| 2 | 77617 | Gilchrist | 99 | A | 2 | — |
| 3 | 77623 | High Island | 99 | A | 2 | — |
| 4 | 77650 | Port Bolivar | 99 | A | 2 | $364K |
| 5 | 77546 | Friendswood | 98 | A | 5 (1 health) | $354K |
| 6 | 77550 | Galveston | 98 | A | 3 | $284K |
| 7 | 77551 | Galveston | 98 | A | 3 | $278K |
| 8 | 77555 | Galveston | 98 | A | 3 | — |
| 9 | 77518 | Bacliff | 97 | A | 6 | $168K |
| 10 | 77590 | Texas City | 92 | A | 11 (1 health) | $168K |
| 11 | 77539 | Dickinson | 83 | B | 25 (5 health) | $246K |
| 12 | 77554 | Galveston | 83 | B | 21 (2 health) | $431K |
| 13 | 77563 | Hitchcock | 83 | B | 31 (10 health) | $199K |
| 14 | 77568 | La Marque | 83 | B | 23 (6 health) | $209K |
| 15 | 77573 | League City | 83 | B | 0 | $342K |
| 16 | 77836 | Caldwell | 83 | B | 62 (2 health) | $199K |
| 17 | 75265 | Dallas | — | — | — | |
| 18 | 75764 | Gallatin | — | — | $99K | |
| 19 | 76624 | Axtell | — | — | 132 (97 health) | $147K |
| 20 | 76632 | Chilton | — | — | 17 (2 health) | $95K |
| 21 | 77510 | Santa Fe | — | — | 32 (6 health) | $281K |
| 22 | 77517 | Santa Fe | — | — | 14 (1 health) | $266K |
| 23 | 77549 | Friendswood | — | — | — | |
| 24 | 77552 | Galveston | — | — | — | |
| 25 | 77553 | Galveston | — | — | — | |
| 26 | 77574 | League City | — | — | — | |
| 27 | 77591 | Texas City | — | — | 5 (1 health) | $205K |
| 28 | 77592 | Texas City | — | — | — | |
| 29 | 77850 | Concord | — | — | — |
Recommended Buyer Guides for Galveston County
These buyer guides are matched by rule rather than by hand - a PFAS record adds a PFAS filter guide, a lead action-level exceedance adds lead filter guides, a high share of pre-1978 homes adds lead paint test kits, EPA Radon Zone 1 add radon kits, and a top flood or wildfire risk adds related equipment.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Galveston County, Texas
Overview
Galveston County in Texas covers 29 tracked ZIP records with an average Home Safety Score of A (92/100) across 16 scored records.
20 of 21 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 114 health-based violations appear in the available health breakdown.
← Back to Texas Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.