Winneshiek County, Iowa
9 ZIP codes · Home Safety Score unavailable · 0 of 9 tracked ZIP records scored
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData
ZIP Code Risk Map
Water Quality Map: Winneshiek County, Iowa
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.7 (asthma 9.6%, diabetes 10.7%)
Modeled additional annual cost estimate per homeowner: $492, largest modeled factor: Water Lead
66% of homes built before 1980 (lead paint was banned for residential use in 1978)
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 DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $492
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
8,804 housing units in Winneshiek 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 Winneshiek County
Modeled remediation costs in Winneshiek 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 Winneshiek County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Winneshiek County ZIP codes
3 community water systems mapped to Winneshiek County ZIP codes; EPA may list more systems serving the county.
Systems with the most violations in Winneshiek County
1 water system with violations in EPA records.
All ZIP Codes in Winneshiek County
9 ZIP codes tracked in Winneshiek County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 52101 | Decorah | — | — | 1 | $250K |
| 2 | 52132 | Calmar | — | — | $226K | |
| 3 | 52133 | Castalia | — | — | $209K | |
| 4 | 52140 | Dorchester | — | — | $217K | |
| 5 | 52144 | Fort Atkinson | — | — | $194K | |
| 6 | 52149 | Highlandville | — | — | — | |
| 7 | 52161 | Ossian | — | — | $174K | |
| 8 | 52165 | Ridgeway | — | — | $271K | |
| 9 | 52168 | Spillville | — | — | $157K |
Recommended Buyer Guides for Winneshiek County
Which guides appear depends on what the county data show.
- Best Lead Paint Test Kits — 66% of homes built before 1980
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Winneshiek County, Iowa
Overview
Winneshiek County in Iowa covers 9 tracked ZIP records. No Home Safety Score is published because the required model evidence is incomplete for every tracked record; missing evidence is not treated as zero.
1 of 1 ZIP code with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.
← Back to Iowa 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.