Kewaunee County, Wisconsin
3 ZIP codes · Avg score 62/100 · Grade C · Updated 2026-06-04
Based on current EPA data, Kewaunee County's 3 ZIP codes reflect fair but mixed water safety.
How Kewaunee County Compares
How Kewaunee County Compares
Kewaunee County scores 4 points below the Wisconsin state average (66/100) and 6 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
Key Risk Factors
Health risk index: 13.9 (asthma 10.6%, diabetes 12.1%)
Estimated additional annual cost per homeowner: $1,113, driven primarily by energy_code_gap
Infrastructure: 0.433% avg pipe failure probability, 67% of ZIPs at high risk
70.7% 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
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,113
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
6,495 housing units in Kewaunee 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 Kewaunee County
Remediation costs are relatively manageable for most homeowners in Kewaunee 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 Kewaunee County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 4 systems in Kewaunee County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Algoma Waterworks | 3,219 | 3 |
| 2 | Lakeview Heights Mobile Home Park | 66 | 3 |
| 3 | LUXEMBURG WATERWORKS | 2,737 | 1 |
| 4 | Kewaunee Waterworks | 2,848 | 1 |
All ZIP Codes in Kewaunee County
3 ZIP codes tracked in Kewaunee County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 54201 | Algoma | 75 | B | 3 | $175K |
| 2 | 54216 | Kewaunee | 57 | C | 1 (1 health) | $173K |
| 3 | 54205 | Casco | 53 | D | 0 | $236K |
Recommended Buyer Guides for Kewaunee County
Methodologically, the recommendation order reflects severity in the federal record: contaminants flagged in EPA detection records for this county outrank generic water concerns, FEMA-confirmed hazard ratings shift emergency-related categories upward, and CDC lead-exposure markers govern when lead-test kits and certified filters appear at the top of the list.
- Best Water Filters for Lead — Lead above EPA action level in 1 ZIP code
- Best Lead Paint Test Kits — 70.7% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Overview
Kewaunee County in Wisconsin covers 3 ZIP codes with an average Home Safety Score of C (62/100).
2 of 3 ZIP codes have recorded EPA violations. 1 health-based violation have been documented.
← Back to Wisconsin 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.