Cleveland County, Oklahoma
12 ZIP codes · Avg score 82/100 · Grade B · Updated 2026-06-03
Water utilities serving Cleveland County's 12 ZIP codes have built a consistent compliance record — the county's above-average grade reflects years of data showing low violation rates and no systemic health concerns.
How Cleveland County Compares
How Cleveland County Compares
Cleveland County scores 3 points above the Oklahoma state average (79/100) and 14 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Cleveland County, Oklahoma
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.4 (asthma 11%, diabetes 10.9%)
Estimated additional annual cost per homeowner: $1,021, driven primarily by flood
Infrastructure: 0.383% avg pipe failure probability, 42% of ZIPs at high risk
39.1% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Cleveland County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 42 violations. Past 5 years: 69 total (67 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: $1,021
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
86,232 housing units in Cleveland 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 Cleveland County
Remediation costs are relatively manageable for most homeowners in Cleveland 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 Cleveland 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 Cleveland County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Norman Utilities Authority | 104,868 | 211 |
| 2 | Wildfire Estates Homeowners | 285 | 211 |
| 3 | Oklahoma University | 34,000 | 192 |
| 4 | Mcclain County Rw & Sd #9 | 250 | 192 |
| 5 | Whippoorwill Estates | 83 | 192 |
27 total water systems serve Cleveland County.
All ZIP Codes in Cleveland County
12 ZIP codes tracked in Cleveland County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 73165 | Oklahoma City | 91 | A | 2 | $320K |
| 2 | 73079 | Pocasset | 90 | A | 16 (1 health) | $169K |
| 3 | 73019 | Norman | 87 | A | 32 (4 health) | — |
| 4 | 73170 | Oklahoma City | 86 | A | 2 | $250K |
| 5 | 73173 | Oklahoma City | 86 | A | 2 | $355K |
| 6 | 73070 | Norman | 85 | A | 32 (4 health) | — |
| 7 | 73026 | Norman | 80 | B | 32 (4 health) | $266K |
| 8 | 73069 | Norman | 80 | B | 32 (4 health) | $212K |
| 9 | 73071 | Norman | 80 | B | 32 (4 health) | $207K |
| 10 | 73068 | Noble | 76 | B | 19 (7 health) | $189K |
| 11 | 73072 | Norman | 75 | B | 32 (4 health) | $291K |
| 12 | 73051 | Lexington | 70 | B | 22 | $153K |
Recommended Buyer Guides for Cleveland County
Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.
- 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 Cleveland County, Oklahoma
Overview
Cleveland County in Oklahoma covers 12 ZIP codes with an average Home Safety Score of B (82/100).
12 of 12 ZIP codes have recorded EPA violations. 32 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.