COUNTY REPORT IA

Clinton County, Iowa

18 ZIP codes · Avg score 61/100 · Grade C · Updated

ZipCheckup grade for Clinton County: C.

A mixed picture - some signals here are worth your attention.

Covering 18 ZIP codes, Clinton County falls in the average tier for tap water safety - violations appear in a meaningful share of areas, and the data suggests quality depends heavily on which specific part of the county a household sits in.

How Clinton County Compares

Clinton County61/100
Iowa avg63/100
National avg73/100

How Clinton County Compares

C
County Grade
61/100
Avg Safety Score
18
ZIP Codes
5
Water Systems

Clinton County scores 2 points below the Iowa state average (63/100) and 12 points below the national average (73/100).

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

C
County Grade
61
Avg Safety Score
18
ZIP Codes
Best ZIP: 52730 (67/100)
Lowest ZIP: 52732 (50/100)
$153K
Median Home Value
$1,928
Avg Remediation (126% of home value)

ZIP Code Risk Map

Water Quality Map: Clinton 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: 14.4 (asthma 10.2%, diabetes 12.7%)

Estimated additional annual cost per homeowner: $1,017, driven primarily by flood

78.9% of homes built before 1978 (lead paint era)

County Health Indicators vs National Average

Asthma 10.2% (national: 8.9%)
Diabetes 12.7% (national: 10.5%)
Obesity 39.3% (national: 32.4%)

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

Infrastructure Overview

1952
Median Build Year
78.9%
Pre-1978 Housing
51/100
Infrastructure Stress Indicator
78%
ZIPs with High Infrastructure Stress
High
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: $1,017

Flood $480/yr
Energy Code Gap $330/yr
Water / Lead $303/yr

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

Housing Age Distribution

21,343 housing units in Clinton County

Pre-1940 33%
1940–1959 19%
1960–1979 26%
1980–1999 11%
2000+ 11%

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 Clinton County

$153K
Median Home Value
$1,928
Est. Remediation Cost
1.3%
of Home Value
Remediation as % of home value low burden

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

Asthma 10.2% (US avg: 8.9%)
Diabetes 12.7% (US avg: 11%)
Obesity 39.3% (US avg: 32.4%)

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

Water systems serving Clinton County

5 community water systems serving Clinton County.

Systems with the most violations in Clinton County

1 water system with recorded EPA violations.

All ZIP Codes in Clinton County

18 ZIP codes tracked in Clinton County.

# ZIP Code City Safety Score Grade Violations Home Value
1 52730 Camanche 67 C 0 $176K
2 52742 De Witt 67 C 0 $241K
3 52732 Clinton 50 D 0 $119K
4 52037 Delmar 1 $188K
5 52254 Lost Nation $97K
6 52701 Andover $115K
7 52727 Bryant $240K
8 52729 Calamus $164K
9 52731 Charlotte $135K
10 52733 Clinton
11 52734 Clinton
12 52736 Clinton
13 52750 Goose Lake $178K
14 52751 Grand Mound $169K
15 52757 Low Moor $120K
16 52771 Teeds Grove
17 52774 Welton $115K
18 52777 Wheatland $143K

Recommended Buyer Guides for Clinton County

Four sources - EPA, NSF, FEMA, CDC - drive the match.

Overview

Clinton County in Iowa covers 18 tracked ZIP records with an average Home Safety Score of C (61/100) across 3 scored records.

1 of 4 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.

← 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

Is water safe in Clinton County?
Clinton County receives a grade of C. Some ZIP codes have recorded violations and residents in affected areas may want to test their water.
How many water systems serve Clinton County?
Clinton County is served by 5 public water systems that supply drinking water to residents across 18 ZIP codes.
What is the biggest environmental risk in Clinton County?
The primary environmental risk factor in Clinton County is flood. This contributes to an estimated additional annual cost of $1,017 per homeowner.
How old are homes in Clinton County?
The median home build year in Clinton County is 1952. 78.9% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Clinton County compare to Iowa?
Clinton County has an average Home Safety Score of 61/100 under model 4.0.0, which is below the Iowa state average of 63/100.

How to cite this page

APA ZipCheckup. (2026). Clinton County, IA: HSS 61/100; 1 Violation. https://zipcheckup.com/county/iowa/clinton/
BibTeX
@misc{zipcheckup-county-iowa-clinton,
  author = {{ZipCheckup}},
  title  = {{Clinton County, IA: HSS 61/100; 1 Violation}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/iowa/clinton/}
}

Page version: August 2026.

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