COUNTY REPORT WI

Washington County, Wisconsin

11 ZIP codes · Home Safety Score unavailable · 0 of 11 tracked ZIP records scored

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData

Unavailable
0 of 11 tracked ZIP records scored
11
ZIP Codes
$312K
Median Home Value
$588
Avg Remediation (0.19% of home value)

ZIP Code Risk Map

Water Quality Map: Washington County, Wisconsin

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: 12.4 (asthma 10.5%, diabetes 10.5%)

Modeled additional annual cost estimate per homeowner: $752, largest modeled factor: Flood

47% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 10.5% (national: 8.9%)
Diabetes 10.5% (national: 10.5%)
Obesity 36.4% (national: 32.4%)

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

Infrastructure Overview

1978
Median Build Year
47%
Pre-1980 Housing
37/100
Infrastructure Stress Indicator
40%
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: $752

Flood $511/yr
Energy Code Gap $252/yr
Water / Lead $128/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

56,498 housing units in Washington County

Pre-1940 13%
1940–1959 9%
1960–1979 25%
1980–1999 29%
2000+ 24%

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 Washington County

$312K
Median Home Value
$588
Est. Remediation Cost
0.2%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Washington 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 Washington County residents

Asthma 10.5% (US avg: 8.9%)
Diabetes 10.5% (US avg: 11%)
Obesity 36.4% (US avg: 32.4%)

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

Water systems mapped to Washington County ZIP codes

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

Show all 8 water systems

12 water systems mapped to Washington County ZIP codes in our data; EPA may list more systems serving the county.

Systems with the most violations in Washington County

5 water systems with violations in EPA records.

All ZIP Codes in Washington County

11 ZIP codes tracked in Washington County.

# ZIP Code City Safety Score Grade Violations Home Value
1 53002 Allenton — — 0 $291K
2 53022 Germantown — — 4 (1 health) $353K
3 53027 Hartford — — 2 (1 health) $290K
4 53033 Hubertus — — $399K
5 53037 Jackson — — 5 (2 health) $312K
6 53040 Kewaskum — — 67 $313K
7 53060 Newburg — — —
8 53076 Richfield — — 9 (3 health) $450K
9 53086 Slinger — — 2 (1 health) $363K
10 53090 West Bend — — 62 $268K
11 53095 West Bend — — 71 (2 health) $287K

Recommended Buyer Guides for Washington County

The mix of guides changes from county to county.

Overview

Washington County in Wisconsin covers 11 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.

8 of 9 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 Wisconsin Home Safety Profile

Data Sources

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

Frequently Asked Questions

How many water systems serve Washington County?
We map 12 public water systems to 11 ZIP codes in our data for Washington County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Washington County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Washington County is flood. Across all modeled risk factors, the estimated average additional annual cost is $752 per homeowner; actual costs vary by home.
How old are homes in Washington County?
The median home build year in Washington County is 1978. 47% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.

How to cite this page

APA ZipCheckup. (2026). Washington County, Wisconsin Home Safety Profile. https://zipcheckup.com/county/wisconsin/washington/
BibTeX
@misc{zipcheckup-county-wisconsin-washington,
  author = {{ZipCheckup}},
  title  = {{Washington County, Wisconsin Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/wisconsin/washington/}
}

Page version: October 2026.

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