Pawnee County, Oklahoma
7 ZIP codes · Avg score 80/100 · Grade B · Updated 2026-06-03
Pawnee County's tap water quality puts it in the upper tier nationally; the 7 ZIP codes here record few health-based violations.
How Pawnee County Compares
How Pawnee County Compares
Pawnee County scores 1 points above the Oklahoma state average (79/100) and 12 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Pawnee County, Oklahoma
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.6 (asthma 11.9%, diabetes 14.3%)
Estimated additional annual cost per homeowner: $893, driven primarily by water_lead
Infrastructure: 0.473% avg pipe failure probability, 43% of ZIPs at high risk
62.3% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Pawnee County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 23 violations. Past 5 years: 65 total (65 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: $893
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
7,514 housing units in Pawnee 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 Pawnee County
Remediation costs are relatively manageable for most homeowners in Pawnee 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 Pawnee 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 Pawnee County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Mannford | 3,935 | 136 |
| 2 | Pawnee Company Rwd #4 | 415 | 136 |
| 3 | Hallett Public Works Authority | 168 | 65 |
| 4 | Pawnee Company Rwd #1 | 3,200 | 63 |
| 5 | Pawnee | 2,230 | 62 |
18 total water systems serve Pawnee County.
All ZIP Codes in Pawnee County
7 ZIP codes tracked in Pawnee County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 74650 | Ralston | 96 | A | 3 | $59K |
| 2 | 74081 | Terlton | 89 | A | 14 (5 health) | $116K |
| 3 | 74034 | Hallett | 83 | B | 5 (1 health) | — |
| 4 | 74038 | Jennings | 83 | B | 11 (1 health) | $155K |
| 5 | 74020 | Cleveland | 70 | B | 49 (33 health) | $138K |
| 6 | 74058 | Pawnee | 70 | B | 62 (32 health) | $112K |
| 7 | 74045 | Maramec | 66 | C | 0 | $214K |
Recommended Buyer Guides for Pawnee County
Federal and certification sources drive the ordering: EPA monitoring data, NSF certifications, FEMA flood maps, and CDC lead guidance — guides surface only when county data warrants them.
- Best Lead Paint Test Kits — 62.3% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Pawnee County, Oklahoma
Overview
Pawnee County in Oklahoma covers 7 ZIP codes with an average Home Safety Score of B (80/100).
6 of 7 ZIP codes have recorded EPA violations. 72 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.