COUNTY REPORT MN

Winona County, Minnesota

10 ZIP codes · Avg score 66/100 · Grade C

ZipCheckup grade for Winona County: C.

A mixed picture - some signals here are worth your attention.

ZipCheckup gives Winona County a C; the county page lists 10 ZIP codes, each with its own report.

How Winona County Compares

Winona County66/100
Minnesota avg68/100
National avg73/100

How Winona County Compares

C
County Grade
66/100
Avg Safety Score
10
ZIP Codes
4
Water Systems

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

C
County Grade
66
Avg Safety Score
10
ZIP Codes
Best ZIP: 55972 (67/100)
Lowest ZIP: 55987 (65/100)
$244K
Median Home Value
$600
Avg Remediation (0.25% of home value)

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.

A B C D F

Key Risk Factors

Health risk index: 11.8 (asthma 10.3%, diabetes 9.8%)

Modeled additional annual cost estimate per homeowner: $908, largest modeled factor: Flood

64% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 10.3% (national: 8.9%)
Diabetes 9.8% (national: 10.5%)
Obesity 33.8% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1975
Median Build Year
64%
Pre-1980 Housing
45/100
Infrastructure Stress Indicator
75%
ZIPs with High Infrastructure Stress
Low
Lead Pipe Risk

Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $908

Flood $511/yr
Energy Code Gap $473/yr
Water / Lead $175/yr

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

Pre-1940 29%
1940–1959 13%
1960–1979 22%
1980–1999 21%
2000+ 14%

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

$244K
Median Home Value
$600
Est. Remediation Cost
0.2%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Winona County can be compared with the median property value; actual costs vary by property.

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

Asthma 10.3% (US avg: 8.9%)
Diabetes 9.8% (US avg: 11%)
Obesity 33.8% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems mapped to Winona County ZIP codes

4 community water systems mapped to Winona County ZIP codes; EPA may list more systems serving the county.

Systems with the most violations in Winona County

1 water system with violations in EPA records.

  • Winona
    Serves ~27,782 people 3 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

When no specific signal shows up in the records, the list falls back to general water testing and filtration guides rather than staying empty.

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

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

Is water safe in Winona County?
Winona County receives a grade of C. Some ZIP codes have recorded violations and residents in affected areas may want to test their water.
How many water systems serve Winona County?
We map 4 public water systems to 10 ZIP codes in our data for Winona County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Winona County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Winona County is flood. Across all modeled risk factors, the estimated average additional annual cost is $908 per homeowner; actual costs vary by home.
How old are homes in Winona County?
The median home build year in Winona County is 1975. 64% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.
How does Winona County compare to Minnesota?
Winona County has an average Home Safety Score of 66/100 under model 4.0.0, which is below the Minnesota state average of 68/100.

How to cite this page

APA ZipCheckup. (2026). Winona County, MN: HSS 66/100; 3 Health Violations. https://zipcheckup.com/county/minnesota/winona/
BibTeX
@misc{zipcheckup-county-minnesota-winona,
  author = {{ZipCheckup}},
  title  = {{Winona County, MN: HSS 66/100; 3 Health Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/minnesota/winona/}
}

Page version: October 2026.

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