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2026 Rankings
Cameron County, Texas Home Safety Rankings - 23 ZIPs
Explore rankings under Home Safety Score model 4.0.0. Only ZIPs with all four required inputs are ranked; missing evidence is not imputed or reweighted.
Cameron County, Texas (Texas) includes 23 tracked ZIP codes and 20 mapped community water systems; confirm service for a specific address. Below are the water quality rankings for metro ZIPs with all required inputs.
Average Home Safety Grade: B (70/100)
| Grade | ZIP Codes | % |
|---|---|---|
| A | 2 | 15% |
| B | 6 | 46% |
| C | 5 | 38% |
| D | 0 | 0% |
| F | 0 | 0% |
Top 10 ZIP Codes by Home Safety Score
| Rank | ZIP | City | Score | Grade |
|---|---|---|---|---|
| 1 | 78597 | South Padre Island | 91 | A |
| 2 | 78579 | Progreso | 85 | A |
| 3 | 78521 | Brownsville | 75 | B |
| 4 | 78578 | Port Isabel | 75 | B |
| 5 | 78526 | Brownsville | 74 | B |
| 6 | 78566 | Los Fresnos | 74 | B |
| 7 | 78520 | Brownsville | 71 | B |
| 8 | 78575 | Olmito | 71 | B |
| 9 | 78550 | Harlingen | 58 | C |
| 10 | 78552 | Harlingen | 58 | C |
10 Riskiest ZIP Codes
| Rank | ZIP | City | Score | Grade | Risk Factor |
|---|---|---|---|---|---|
| 1 | 78586 | San Benito | 58 | C | 44 violations |
| 2 | 78583 | Rio Hondo | 58 | C | 35 violations |
| 3 | 78559 | La Feria | 58 | C | 44 violations |
| 4 | 78552 | Harlingen | 58 | C | 59 violations |
| 5 | 78550 | Harlingen | 58 | C | 55 violations |
| 6 | 78575 | Olmito | 71 | B | 8 violations |
| 7 | 78520 | Brownsville | 71 | B | 8 violations |
| 8 | 78566 | Los Fresnos | 74 | B | 3 violation(s) |
| 9 | 78526 | Brownsville | 74 | B | 1 violation(s) |
| 10 | 78578 | Port Isabel | 75 | B | 1 violation(s) |
Most Common Contaminant Violations
| Contaminant | Violations | ZIPs Affected |
|---|---|---|
| Lead and Copper Rule | 88 | 8 |
| Haloacetic Acids (HAA5) | 58 | 12 |
| Fecal Coliform | 51 | 6 |
| Surface Water Treatment Rule | 30 | 8 |
| Barium | 28 | 7 |
| Stage 2 DBP Rule | 21 | 10 |
| Consumer Confidence Report Rule | 19 | 5 |
| Stage 1 DBP Rule | 13 | 8 |
Lead Risk
- Average of reported 90th-percentile lead results: 0.0016 mg/L (below EPA action level)
- 0 of 17 ZIP codes with known status exceed EPA lead action level
- 4% of housing built before 1950
- 15% of housing built before 1970
Cities in This Metro
- Brownsville, TX — 5 ZIP codes
- Harlingen, TX — 4 ZIP codes
- Combes, TX — 1 ZIP code
- La Feria, TX — 1 ZIP code
- Los Fresnos, TX — 1 ZIP code
- Los Indios, TX — 1 ZIP code
- Lozano, TX — 1 ZIP code
- Olmito, TX — 1 ZIP code
- Port Isabel, TX — 1 ZIP code
- Progreso, TX — 1 ZIP code
- Rio Hondo, TX — 1 ZIP code
- San Benito, TX — 1 ZIP code
- Santa Maria, TX — 1 ZIP code
- Santa Rosa, TX — 1 ZIP code
- South Padre Island, TX — 1 ZIP code
- Port Mansfield, TX — 1 ZIP code
All 23 ZIP Codes Ranked
View complete ranking
| Rank | ZIP | City | Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 78597 | South Padre Island | 91 | A | 1 |
| 2 | 78579 | Progreso | 85 | A | 5 |
| 3 | 78521 | Brownsville | 75 | B | 0 |
| 4 | 78578 | Port Isabel | 75 | B | 1 |
| 5 | 78526 | Brownsville | 74 | B | 1 |
| 6 | 78566 | Los Fresnos | 74 | B | 3 |
| 7 | 78520 | Brownsville | 71 | B | 8 |
| 8 | 78575 | Olmito | 71 | B | 8 |
| 9 | 78550 | Harlingen | 58 | C | 55 |
| 10 | 78552 | Harlingen | 58 | C | 59 |
| 11 | 78559 | La Feria | 58 | C | 44 |
| 12 | 78583 | Rio Hondo | 58 | C | 35 |
| 13 | 78586 | San Benito | 58 | C | 44 |
| 14 | 78535 | Combes | — | — | 14 |
| 15 | 78567 | Los Indios | — | — | 7 |
| 16 | 78592 | Santa Maria | — | — | 7 |
| 17 | 78593 | Santa Rosa | — | — | 37 |
| 18 | 78598 | Port Mansfield | — | — | — |
Data Sources
- Water quality: EPA SDWIS
- Housing: U.S. Census Bureau American Community Survey
- Flood: FEMA NFIP
- Flood scope: historical NFIP claim records and claim-rated-zone evidence; this is not current property-map coverage.
Reporting periods vary by source; the page metadata identifies this materialization.
Methodology
Model 4.0.0 averages SDWIS water compliance and UCMR5 PFAS within drinking water, then averages drinking water, county radon, and annual AQI as three equal domains. All four inputs are required. Score methodology → · Rankings methodology →
Model 4.0.0 averages SDWIS water compliance and UCMR5 PFAS within drinking water, then averages drinking water, county radon, and annual AQI as three equal domains. All four inputs are required. Score methodology → · Rankings methodology →
Disclaimer: Scores are based on EPA SDWIS reported data and are not a guarantee of current water safety. Water quality can change. For the most current information, contact your local water utility or request a Consumer Confidence Report.
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How to cite this page
APA
ZipCheckup. (2026). Cameron County, Texas Home Safety Rankings - 23 ZIPs. https://zipcheckup.com/rankings/metro/cameron-texas/
BibTeX
@misc{zipcheckup-rankings-metro-cameron-texas,
author = {{ZipCheckup}},
title = {{Cameron County, Texas Home Safety Rankings - 23 ZIPs}},
year = {2026},
url = {https://zipcheckup.com/rankings/metro/cameron-texas/}
}
Page version: October 2026.
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