Fort Bend County, Texas
23 ZIP codes · Avg score 81/100 · Grade B · Updated 2026-06-03
The 23 water systems serving Fort Bend County show strong compliance with federal drinking water standards.
How Fort Bend County Compares
How Fort Bend County Compares
Fort Bend County scores 1 points below the Texas state average (82/100) and 13 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Fort Bend County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 10.5 (asthma 9%, diabetes 12%)
Estimated additional annual cost per homeowner: $2,832, driven primarily by flood
Infrastructure: 0.269% avg pipe failure probability, 14% of ZIPs at high risk
38.4% of homes built before 1978 (lead paint era)
Violation History (2024–2025)
→ Stable trendEPA violation counts by year across Fort Bend County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 12 violations. Past 5 years: 16 total (16 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $2,832
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
279,241 housing units in Fort Bend 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 Fort Bend County
Remediation costs are relatively manageable for most homeowners in Fort Bend County, representing a small fraction of property value.
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 Fort Bend County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Fort Bend County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | City of Rosenberg | 42,158 | 30 |
| 2 | Fort Bend County Municipal Utility District 5 | 4,665 | 29 |
| 3 | City of Richmond | 25,326 | 28 |
| 4 | City of Beasley | 977 | 23 |
| 5 | City of Fulshear | 34,000 | 22 |
39 total water systems serve Fort Bend County.
All ZIP Codes in Fort Bend County
23 ZIP codes tracked in Fort Bend County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 77491 | Katy | 97 | A | 1 | — |
| 2 | 77496 | Sugar Land | 93 | A | 1 | — |
| 3 | 77497 | Stafford | 90 | A | 3 | — |
| 4 | 77417 | Beasley | 89 | A | 8 (1 health) | $156K |
| 5 | 77481 | Thompsons | 89 | A | 2 (1 health) | — |
| 6 | 77461 | Needville | 84 | B | 3 (1 health) | $263K |
| 7 | 77407 | Richmond | 83 | B | 4 | $354K |
| 8 | 77441 | Fulshear | 83 | B | 2 | $557K |
| 9 | 77451 | Kendleton | 83 | B | 6 (1 health) | $115K |
| 10 | 77444 | Guy | 81 | B | 4 (1 health) | $206K |
| 11 | 77430 | Damon | 80 | B | 9 (2 health) | $330K |
| 12 | 77406 | Richmond | 78 | B | 4 | $383K |
| 13 | 77469 | Richmond | 78 | B | 4 | $315K |
| 14 | 77478 | Sugar Land | 78 | B | 1 | $379K |
| 15 | 77479 | Sugar Land | 78 | B | 1 | $462K |
| 16 | 77494 | Katy | 78 | B | 1 | $450K |
| 17 | 77498 | Sugar Land | 78 | B | 1 | $282K |
| 18 | 77464 | Orchard | 77 | B | 6 | $230K |
| 19 | 77471 | Rosenberg | 76 | B | 15 (1 health) | $235K |
| 20 | 77477 | Stafford | 75 | B | 3 | $241K |
| 21 | 77459 | Missouri City | 74 | B | 3 | $368K |
| 22 | 77489 | Missouri City | 74 | B | 3 | $210K |
| 23 | 77450 | Katy | 73 | B | 1 | $342K |
Recommended Buyer Guides for Fort Bend County
Below: editorial picks, no sponsored placements.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Fort Bend County, Texas
Overview
Fort Bend County in Texas covers 23 ZIP codes with an average Home Safety Score of B (81/100).
23 of 23 ZIP codes have recorded EPA violations. 8 health-based violations have been documented.
← Back to Texas water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.