Wilson County, Kansas
4 ZIP codes · Avg score 74/100 · Grade B · Updated 2026-07-19
ZipCheckup grade for Wilson: B.
This ZIP looks solid, with a few items worth a quick check.
Water utilities serving Wilson County's 4 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 Wilson County Compares
How Wilson County Compares
Wilson County scores 10 points above the Kansas state average (64/100) and 6 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-07-19
Key Risk Factors
Health risk index: 15.2 (asthma 10.4%, diabetes 13.8%)
Estimated additional annual cost per homeowner: $1,518, driven primarily by flood
Infrastructure: 0.47% avg pipe failure probability, 100% of ZIPs at high risk
73.3% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
→ Stable trendEPA violation counts by year across Wilson County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 4 violations. Past 5 years: 8 total (7 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: $1,518
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
4,102 housing units in Wilson 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 Wilson County
Remediation costs are relatively manageable for most homeowners in Wilson 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 Wilson County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Wilson County
8 community water systems serving Wilson County.
- B
- B
- B
- C
- B
- B
Show all 8 water systems
- B
- B
14 total water systems serve Wilson County.
Systems with the most violations in Wilson County
3 water systems with recorded EPA violations.
- B
- B
- C
All ZIP Codes in Wilson County
4 ZIP codes tracked in Wilson County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 66710 | Altoona | 82 | B | 2 | $75K |
| 2 | 66757 | Neodesha | 74 | B | 5 | $114K |
| 3 | 66736 | Fredonia | 72 | B | 3 | $95K |
| 4 | 66717 | Buffalo | 68 | C | 2 | $52K |
Recommended Buyer Guides for Wilson County
Strictly editorial - no paid placements influence which guides appear; the selection draws on NSF certifications and EPA detection records for water systems serving this county.
- Best Lead Paint Test Kits — 73.3% of homes built before 1978
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Overview
Wilson County in Kansas covers 4 ZIP codes with an average Home Safety Score of B (74/100).
4 of 4 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Kansas 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.