COUNTY REPORT WI

Washington County, Wisconsin

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

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

Unavailable
0 of 11 tracked ZIP records scored
11
ZIP Codes
$312K
Median Home Value
$2,600
Avg Remediation (83% 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%)

Estimated additional annual cost per homeowner: $877, driven primarily by flood

52.1% of homes built before 1978 (lead paint era)

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
52.1%
Pre-1978 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 DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $877

Flood $422/yr
Energy Code Gap $252/yr
Water / Lead $155/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
$2,600
Est. Remediation Cost
0.8%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Washington 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 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 serving Washington County

8 community water systems serving Washington County.

Show all 8 water systems

12 total water systems serve Washington County.

Systems with the most violations in Washington County

5 water systems with recorded EPA violations.

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

While many sites publish identical guide lists across every county they cover, the selection here changes by location - driven by the EPA, NSF, FEMA, and CDC datasets that describe the actual conditions documented for this jurisdiction in the federal record.

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?
Washington County is served by 12 public water systems that supply drinking water to residents across 11 ZIP codes.
What is the biggest environmental risk in Washington County?
The primary environmental risk factor in Washington County is flood. This contributes to an estimated additional annual cost of $877 per homeowner.
How old are homes in Washington County?
The median home build year in Washington County is 1978. 52.1% of homes were built before 1978, which means they may contain lead-based paint and 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: August 2026.

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