Lincoln County, Oklahoma
10 ZIP codes · Avg score 79/100 · Grade B · Updated 2026-06-03
Tracking 10 ZIP codes in Lincoln County shows a water safety record well above the national median — violations are isolated exceptions, not recurring patterns.
How Lincoln County Compares
How Lincoln County Compares
Lincoln County scores 0 points above the Oklahoma state average (79/100) and 11 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Lincoln County, Oklahoma
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.9 (asthma 11.7%, diabetes 14.1%)
Estimated additional annual cost per homeowner: $876, driven primarily by wildfire
Infrastructure: 0.408% avg pipe failure probability, 50% of ZIPs at high risk
53.5% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
→ Stable trendEPA violation counts by year across Lincoln County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 20 violations. Past 5 years: 57 total (55 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: $876
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
13,314 housing units in Lincoln 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 Lincoln County
Remediation costs are relatively manageable for most homeowners in Lincoln 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 Lincoln 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 Lincoln County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Lincoln Company Rw & Sewer District 4 | 2,525 | 81 |
| 2 | Davenport Utility Authority | 881 | 38 |
| 3 | Lincoln Company Rwd #2 | 400 | 38 |
| 4 | Tryon | 448 | 37 |
| 5 | Wellston | 825 | 30 |
13 total water systems serve Lincoln County.
All ZIP Codes in Lincoln County
10 ZIP codes tracked in Lincoln County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 74824 | Agra | 95 | A | 6 | $162K |
| 2 | 74832 | Carney | 88 | A | 0 | $101K |
| 3 | 74864 | Prague | 88 | A | 1 | $166K |
| 4 | 74079 | Stroud | 86 | A | 8 (1 health) | $162K |
| 5 | 74869 | Sparks | 86 | A | 1 | $88K |
| 6 | 74855 | Meeker | 83 | B | 5 | $151K |
| 7 | 74834 | Chandler | 79 | B | 13 (5 health) | $180K |
| 8 | 74026 | Davenport | 67 | C | 17 (8 health) | $92K |
| 9 | 74881 | Wellston | 64 | C | 17 (12 health) | $127K |
| 10 | 74875 | Tryon | 57 | C | 37 (4 health) | $183K |
Recommended Buyer Guides for Lincoln County
Filtered against EPA monitoring data and CDC lead-exposure guidance, the guides below skip the generic catalog and connect directly to the contaminants and hazards on file here.
- Best Water Filters for Lead — Lead above EPA action level in 1 ZIP code
- Best Lead Paint Test Kits — 53.5% 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 Lincoln County, Oklahoma
Overview
Lincoln County in Oklahoma covers 10 ZIP codes with an average Home Safety Score of B (79/100).
9 of 10 ZIP codes have recorded EPA violations. 30 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.