Winona County, Minnesota
10 ZIP codes · Avg score 66/100 · Grade C · Updated
ZipCheckup grade for Winona County: C.
A mixed picture - some signals here are worth your attention.
Across Winona County's 10 ZIP codes, water safety results are uneven - a portion of systems carry active or recent violations, while others meet standards without issues.
How Winona County Compares
How Winona County Compares
Winona County scores 2 points below the Minnesota state average (68/100) and 7 points below the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Winona County, Minnesota
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11.8 (asthma 10.3%, diabetes 9.8%)
Estimated additional annual cost per homeowner: $1,248, driven primarily by flood
64.5% of homes built before 1978 (lead paint era)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,248
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
21,291 housing units in Winona 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 Winona County
Remediation costs are relatively manageable for most homeowners in Winona 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 Winona County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Winona County
4 community water systems serving Winona County.
- C
- C
- C
- C
Systems with the most violations in Winona County
1 water system with recorded EPA violations.
- C
All ZIP Codes in Winona County
10 ZIP codes tracked in Winona County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 55972 | Saint Charles | 67 | C | 0 | $256K |
| 2 | 55987 | Winona | 65 | C | 3 (3 health) | $211K |
| 3 | 55910 | Altura | — | — | $238K | |
| 4 | 55925 | Dakota | — | — | $271K | |
| 5 | 55942 | Homer | — | — | — | |
| 6 | 55952 | Lewiston | — | — | $229K | |
| 7 | 55959 | Minnesota City | — | — | 3 (3 health) | $204K |
| 8 | 55969 | Rollingstone | — | — | $260K | |
| 9 | 55979 | Utica | — | — | 0 | $250K |
| 10 | 55988 | Stockton | — | — | — |
Recommended Buyer Guides for Winona 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 Lead Paint Test Kits — 64.5% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- 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 Winona County, Minnesota
Overview
Winona County in Minnesota covers 10 tracked ZIP records with an average Home Safety Score of C (66/100) across 2 scored records.
2 of 4 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 3 health-based violations appear in the available health breakdown.
← Back to Minnesota Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.