Door County, Wisconsin
12 ZIP codes · Avg score 50/100 · Grade D · Updated
ZipCheckup grade for Door County: D.
Several federal signals point to home-safety risks in this ZIP.
In recent EPA cycles, Door County's 12 ZIP codes show a persistent below-average water quality pattern - documented violations span multiple areas, have appeared consistently across recent reporting periods, and the compliance shortfalls are spread across the county rather than isolated to a single geographic pocket or utility district, suggesting a broader structural issue rather than a localized anomaly.
How Door County Compares
How Door County Compares
Door County scores 20 points below the Wisconsin state average (70/100) and 23 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: Door County, Wisconsin
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14 (asthma 10.5%, diabetes 13%)
Estimated additional annual cost per homeowner: $923, driven primarily by flood
56.7% of homes built before 1978 (lead paint era)
Violation History (2023–2024)
→ Stable trendEPA violation counts by year across Door County water systems. Health-based shown in red, total in blue.
Peak year: 2023 with 1 violation. Past 5 years: 2 total (2 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
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: $923
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
26,681 housing units in Door 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 Door County
Remediation costs are relatively manageable for most homeowners in Door 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 Door County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Door County
5 community water systems serving Door County.
- D
Systems with the most violations in Door County
3 water systems with recorded EPA violations.
All ZIP Codes in Door County
12 ZIP codes tracked in Door County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 54235 | Sturgeon Bay | 50 | D | 0 | $268K |
| 2 | 54202 | Baileys Harbor | — | — | 0 | $384K |
| 3 | 54204 | Brussels | — | — | $325K | |
| 4 | 54209 | Egg Harbor | — | — | $384K | |
| 5 | 54210 | Ellison Bay | — | — | $356K | |
| 6 | 54211 | Ephraim | — | — | 0 | $466K |
| 7 | 54212 | Fish Creek | — | — | 0 | $481K |
| 8 | 54213 | Forestville | — | — | $187K | |
| 9 | 54217 | Luxemburg | — | — | 6 (2 health) | $255K |
| 10 | 54226 | Maplewood | — | — | — | |
| 11 | 54234 | Sister Bay | — | — | 0 | $420K |
| 12 | 54246 | Washington Island | — | — | $277K |
Recommended Buyer Guides for Door County
Eight risk categories drive the selection - PFAS exceedance, lead above EPA action level, pre-1978 housing share, EPA Radon Zone 1, flood-top-risk, wildfire-top-risk, multi-contaminant load, and a baseline fallback - and each category maps to a specific buyer-guide track that surfaces when the county data hits its threshold for that hazard signal.
- Best Lead Paint Test Kits — 56.7% of homes built before 1978
- 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 Door County, Wisconsin
Overview
Door County in Wisconsin covers 12 tracked ZIP records with an average Home Safety Score of D (50/100) across 1 scored records.
1 of 6 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 2 health-based violations appear in the available health breakdown.
← Back to Wisconsin 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.
What You Can Do
Door County has a grade of D. Here are steps to protect your household.
Test your tap water
Order a certified lab test kit ($20-$50) to check for lead, bacteria, and other contaminants specific to your ZIP code.
Consider a certified water filter
NSF-certified filters can remove most common contaminants. Match the filter to your test results for best protection. Try our filter matcher
Contact your water utility
Request the latest Consumer Confidence Report (CCR) from your water provider. It details exactly what was found in your water supply.
Check for lead in your home
56.7% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.