Hughes County, Oklahoma
7 ZIP codes · Avg score 77/100 · Grade B · Updated 2026-06-04
Throughout Hughes County, the 7 monitored ZIP codes show low violation rates and healthy safety scores — a pattern that puts the county well above the state baseline for drinking water quality.
How Hughes County Compares
How Hughes County Compares
Hughes County scores 2 points below the Oklahoma state average (79/100) and 9 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Hughes County, Oklahoma
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 16.2 (asthma 11.9%, diabetes 15.1%)
Estimated additional annual cost per homeowner: $916, driven primarily by wildfire
Infrastructure: 0.419% avg pipe failure probability, 29% of ZIPs at high risk
63.4% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Hughes County water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 29 violations. Past 5 years: 68 total (68 health-based). Health-based violations are rising versus the prior 2-year window — worth closer monitoring.
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: $916
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
6,074 housing units in Hughes 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 Hughes County
Remediation costs are relatively manageable for most homeowners in Hughes 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 Hughes 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 Hughes County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Mcintosh Company Rwd #13 (wells) | 1,465 | 82 |
| 2 | Hughes Company Rwd #1 | 1,225 | 82 |
| 3 | Hughes Company Rwd #3 | 200 | 79 |
| 4 | Hughes Company Rwd #6 (gerty) | 2,180 | 57 |
| 5 | Holdenville | 4,732 | 49 |
13 total water systems serve Hughes County.
All ZIP Codes in Hughes County
7 ZIP codes tracked in Hughes County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 74531 | Calvin | 98 | A | 3 | $89K |
| 2 | 74839 | Dustin | 98 | A | 3 (1 health) | $71K |
| 3 | 74570 | Stuart | 90 | A | 5 | $155K |
| 4 | 74848 | Holdenville | 70 | B | 49 (27 health) | $102K |
| 5 | 74827 | Atwood | 66 | C | 0 | $196K |
| 6 | 74850 | Lamar | 66 | C | 0 | $120K |
| 7 | 74883 | Wetumka | 51 | D | 30 (15 health) | $85K |
Recommended Buyer Guides for Hughes County
Editorial methodology pairs each documented risk in this county with the buyer category that addresses it, drawing on water-quality detections, housing-stock lead exposure, EPA Radon Zone designation, and FEMA flood and wildfire ratings. NSF-certified options surface where applicable, and products that match the specific contaminant take priority.
- Best Lead Paint Test Kits — 63.4% of homes built before 1978
- 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 Hughes County, Oklahoma
Overview
Hughes County in Oklahoma covers 7 ZIP codes with an average Home Safety Score of B (77/100).
5 of 7 ZIP codes have recorded EPA violations. 43 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.