Bryan County, Oklahoma
15 ZIP codes · Avg score 83/100 · Grade B · Updated 2026-06-03
Across all 15 ZIP codes in Bryan County, tap water consistently meets or exceeds federal safety standards.
How Bryan County Compares
How Bryan County Compares
Bryan County scores 4 points above the Oklahoma state average (79/100) and 15 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Bryan County, Oklahoma
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.1 (asthma 12.2%, diabetes 13.4%)
Estimated additional annual cost per homeowner: $562, driven primarily by wildfire
Infrastructure: 0.342% avg pipe failure probability, 14% of ZIPs at high risk
47.5% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
→ Stable trendEPA violation counts by year across Bryan County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 27 violations. Past 5 years: 81 total (81 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: $562
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
20,893 housing units in Bryan 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 Bryan County
Remediation costs are relatively manageable for most homeowners in Bryan 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 Bryan 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 Bryan County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Bryan County Rural Water District #5 | 8,325 | 65 |
| 2 | Bryan Company Rws & Swmd #2 | 6,270 | 53 |
| 3 | Colbert Pua | 2,312 | 35 |
| 4 | Calera Pwa | 2,815 | 23 |
| 5 | Durant Utilities Authority | 15,545 | 20 |
16 total water systems serve Bryan County.
All ZIP Codes in Bryan County
15 ZIP codes tracked in Bryan County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 74733 | Colbert | 98 | A | 14 (1 health) | $123K |
| 2 | 74748 | Kenefic | 98 | A | 14 (1 health) | $74K |
| 3 | 74723 | Bennington | 97 | A | 1 | $101K |
| 4 | 74729 | Caddo | 97 | A | 10 (2 health) | $138K |
| 5 | 74720 | Achille | 88 | A | 1 | $79K |
| 6 | 74726 | Bokchito | 88 | A | 0 | $150K |
| 7 | 74741 | Hendrix | 87 | A | 3 (1 health) | $152K |
| 8 | 74731 | Cartwright | 84 | B | 3 | $140K |
| 9 | 73449 | Mead | 82 | B | 6 (2 health) | $138K |
| 10 | 74702 | Durant | 82 | B | 5 (5 health) | — |
| 11 | 74701 | Durant | 81 | B | 5 (5 health) | $188K |
| 12 | 74721 | Albany | 66 | C | 0 | — |
| 13 | 74730 | Calera | 66 | C | 18 (10 health) | $169K |
| 14 | 74747 | Kemp | 66 | C | 0 | $88K |
| 15 | 74753 | Platter | 66 | C | 0 | — |
Recommended Buyer Guides for Bryan County
Editorial-only picks, screened against the EPA detections on file.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Bryan County, Oklahoma
Overview
Bryan County in Oklahoma covers 15 ZIP codes with an average Home Safety Score of B (83/100).
11 of 15 ZIP codes have recorded EPA violations. 27 health-based violations have been documented.
← Back to Oklahoma 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.