COUNTY REPORT WI

Clark County, Wisconsin

15 ZIP codes · Home Safety Score unavailable · 0 of 15 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 15 tracked ZIP records scored
15
ZIP Codes
$157K
Median Home Value
$1,505
Avg Remediation (96% of home value)

ZIP Code Risk Map

Water Quality Map: Clark 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: 14.2 (asthma 11.4%, diabetes 12.5%)

Estimated additional annual cost per homeowner: $1,128, driven primarily by energy_code_gap

67.5% of homes built before 1978 (lead paint era)

Violation History (2023–2024)

→ Stable trend

EPA violation counts by year across Clark County water systems. Health-based shown in red, total in blue.

2023
3 (3 health)
2024
7 (7 health)

Peak year: 2024 with 7 violations. Past 5 years: 10 total (10 health-based).

Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.

County Health Indicators vs National Average

Asthma 11.4% (national: 8.9%)
Diabetes 12.5% (national: 10.5%)
Obesity 37.9% (national: 32.4%)

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

Infrastructure Overview

1973
Median Build Year
67.5%
Pre-1978 Housing
46/100
Infrastructure Stress Indicator
80%
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: $1,128

Energy Code Gap $378/yr
Flood $371/yr
Water / Lead $297/yr

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

Housing Age Distribution

15,401 housing units in Clark County

Pre-1940 24%
1940–1959 15%
1960–1979 23%
1980–1999 21%
2000+ 16%

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 Clark County

$157K
Median Home Value
$1,505
Est. Remediation Cost
1.0%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Clark 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 Clark County residents

Asthma 11.4% (US avg: 8.9%)
Diabetes 12.5% (US avg: 11%)
Obesity 37.9% (US avg: 32.4%)

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

Water systems serving Clark County

8 community water systems serving Clark County.

Show all 8 water systems

Systems with the most violations in Clark County

4 water systems with recorded EPA violations.

All ZIP Codes in Clark County

15 ZIP codes tracked in Clark County.

# ZIP Code City Safety Score Grade Violations Home Value
1 54405 Abbotsford 16 (4 health) $153K
2 54420 Chili $173K
3 54422 Curtiss 2 (1 health) $136K
4 54425 Dorchester 16 (4 health) $175K
5 54436 Granton $172K
6 54437 Greenwood $149K
7 54446 Loyal $153K
8 54456 Neillsville 4 $169K
9 54460 Owen 0 $157K
10 54488 Unity 3 (1 health) $138K
11 54493 Willard $215K
12 54498 Withee 0 $145K
13 54746 Humbird $118K
14 54754 Merrillan $163K
15 54771 Thorp $178K

Recommended Buyer Guides for Clark County

Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.

Overview

Clark County in Wisconsin covers 15 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.

5 of 7 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 5 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 Clark County?
Clark County is served by 8 public water systems that supply drinking water to residents across 15 ZIP codes.
What is the biggest environmental risk in Clark County?
The primary environmental risk factor in Clark County is energy_code_gap. This contributes to an estimated additional annual cost of $1,128 per homeowner.
How old are homes in Clark County?
The median home build year in Clark County is 1973. 67.5% 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). Clark County, Wisconsin Home Safety Profile. https://zipcheckup.com/county/wisconsin/clark/
BibTeX
@misc{zipcheckup-county-wisconsin-clark,
  author = {{ZipCheckup}},
  title  = {{Clark County, Wisconsin Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/wisconsin/clark/}
}

Page version: August 2026.

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