Lincoln County, Missouri
12 ZIP codes · Avg score 59/100 · Grade C · Updated 2026-06-03
For most households in Lincoln County, the 12 tracked ZIP codes show adequate but uneven water quality.
How Lincoln County Compares
How Lincoln County Compares
Lincoln County scores 10 points below the Missouri state average (69/100) and 9 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Lincoln County, Missouri
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.8 (asthma 10.6%, diabetes 11.4%)
Estimated additional annual cost per homeowner: $1,759, driven primarily by flood
Infrastructure: 0.337% avg pipe failure probability, 25% of ZIPs at high risk
43.9% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↓ Improving trendEPA violation counts by year across Lincoln County water systems. Health-based shown in red, total in blue.
Peak year: 2023 with 19 violations. Past 5 years: 58 total (58 health-based). Health-based violations are declining versus the prior 2-year window.
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: $1,759
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
24,145 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 | St Charles County Pwsd 2 | 100,587 | 38 |
| 2 | Clubb Villa Senior Living | 110 | 38 |
| 3 | Pike County Pwsd 1 | 7,590 | 23 |
| 4 | Silex Public Water System | 206 | 23 |
| 5 | LINCOLN COUNTY PWSD 1 | 14,000 | 21 |
21 total water systems serve Lincoln County.
All ZIP Codes in Lincoln County
12 ZIP codes tracked in Lincoln County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 63349 | Hawk Point | 83 | B | 1 | $222K |
| 2 | 63362 | Moscow Mills | 77 | B | 7 (1 health) | $225K |
| 3 | 63379 | Troy | 69 | C | 2 (1 health) | $239K |
| 4 | 63343 | Elsberry | 67 | C | 5 (1 health) | $149K |
| 5 | 63389 | Winfield | 67 | C | 7 (1 health) | $219K |
| 6 | 63341 | Defiance | 53 | D | 38 (22 health) | $553K |
| 7 | 63381 | Truxton | 53 | D | 0 | $193K |
| 8 | 63387 | Whiteside | 53 | D | 0 | $95K |
| 9 | 63377 | Silex | 48 | D | 23 (15 health) | $218K |
| 10 | 63330 | Annada | 45 | D | 0 | — |
| 11 | 63347 | Foley | 45 | D | 0 | $166K |
| 12 | 63369 | Old Monroe | 45 | D | 0 | $320K |
Recommended Buyer Guides for Lincoln 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 Lincoln County, Missouri
Overview
Lincoln County in Missouri covers 12 ZIP codes with an average Home Safety Score of C (59/100).
7 of 12 ZIP codes have recorded EPA violations. 41 health-based violations have been documented.
← Back to Missouri 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.