COUNTY REPORT IA

Clay County, Iowa

9 ZIP codes · Home Safety Score unavailable · 0 of 9 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 9 tracked ZIP records scored
9
ZIP Codes
$120K
Median Home Value
$500
Avg Remediation (0.42% of home value)

ZIP Code Risk Map

Water Quality Map: Clay County, Iowa

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: 13.7 (asthma 9.9%, diabetes 12.3%)

Modeled additional annual cost estimate per homeowner: $607, largest modeled factor: Flood

70% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 9.9% (national: 8.9%)
Diabetes 12.3% (national: 10.5%)
Obesity 35.2% (national: 32.4%)

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

Infrastructure Overview

1949
Median Build Year
70%
Pre-1980 Housing
63/100
Infrastructure Stress Indicator
100%
ZIPs with High Infrastructure Stress
High
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: $607

Flood $600/yr
Energy Code Gap $390/yr
Water / Lead $150/yr

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

Housing Age Distribution

7,788 housing units in Clay County

Pre-1940 28%
1940–1959 16%
1960–1979 26%
1980–1999 16%
2000+ 14%

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 Clay County

$120K
Median Home Value
$500
Est. Remediation Cost
0.4%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Clay 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 Clay County residents

Asthma 9.9% (US avg: 8.9%)
Diabetes 12.3% (US avg: 11%)
Obesity 35.2% (US avg: 32.4%)

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

Water systems mapped to Clay County ZIP codes

1 community water system mapped to Clay County ZIP codes; EPA may list more systems serving the county.

All ZIP Codes in Clay County

9 ZIP codes tracked in Clay County.

# ZIP Code City Safety Score Grade Violations Home Value
1 51047 Peterson — — $131K
2 51301 Spencer — — 0 $180K
3 51333 Dickens — — $182K
4 51338 Everly — — $120K
5 51340 Fostoria — — $117K
6 51341 Gillett Grove — — $63K
7 51343 Greenville — — $112K
8 51357 Royal — — $121K
9 51366 Webb — — $119K

Recommended Buyer Guides for Clay County

Which guides appear depends on what the county data show.

Overview

Clay County in Iowa covers 9 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.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

← Back to Iowa 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 Clay County?
We map 1 public water system to the 9 ZIP codes of Clay County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Clay County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Clay County is flood. Across all modeled risk factors, the estimated average additional annual cost is $607 per homeowner; actual costs vary by home.
How old are homes in Clay County?
The median home build year in Clay County is 1949. 70% 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). Clay County, Iowa Home Safety Profile. https://zipcheckup.com/county/iowa/clay/
BibTeX
@misc{zipcheckup-county-iowa-clay,
  author = {{ZipCheckup}},
  title  = {{Clay County, Iowa Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/iowa/clay/}
}

Page version: October 2026.

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