COUNTY REPORT IA

Hamilton County, Iowa

9 ZIP codes · Home Safety Score unavailable · 0 of 9 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 9 tracked ZIP records scored
9
ZIP Codes
$120K
Median Home Value
$1,333
Avg Remediation (111% of home value)

ZIP Code Risk Map

Water Quality Map: Hamilton 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: 13.5 (asthma 9.8%, diabetes 12.1%)

Estimated additional annual cost per homeowner: $1,358, driven primarily by flood

84% of homes built before 1978 (lead paint era)

County Health Indicators vs National Average

Asthma 9.8% (national: 8.9%)
Diabetes 12.1% (national: 10.5%)
Obesity 36.5% (national: 32.4%)

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

Infrastructure Overview

1949
Median Build Year
84%
Pre-1978 Housing
60/100
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 DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $1,358

Flood $1,400/yr
Water / Lead $472/yr
Water Infrastructure $400/yr

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

Housing Age Distribution

7,135 housing units in Hamilton County

Pre-1940 39%
1940–1959 16%
1960–1979 23%
1980–1999 15%
2000+ 6%

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 Hamilton County

$120K
Median Home Value
$1,333
Est. Remediation Cost
1.1%
of Home Value
Remediation as % of home value low burden

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

Asthma 9.8% (US avg: 8.9%)
Diabetes 12.1% (US avg: 11%)
Obesity 36.5% (US avg: 32.4%)

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

Water systems serving Hamilton County

3 community water systems serving Hamilton County.

All ZIP Codes in Hamilton County

9 ZIP codes tracked in Hamilton County.

# ZIP Code City Safety Score Grade Violations Home Value
1 50034 Blairsburg 0 $113K
2 50075 Ellsworth 0 $140K
3 50130 Jewell 0 $143K
4 50132 Kamrar 0 $120K
5 50231 Randall $106K
6 50246 Stanhope 0 $118K
7 50249 Stratford 0 $109K
8 50271 Williams 0 $138K
9 50595 Webster City 0 $129K

Recommended Buyer Guides for Hamilton County

Federal and certification sources drive the ordering: EPA monitoring data, NSF certifications, FEMA flood maps, and CDC lead guidance - guides surface only when county data warrants them.

Deep Dive Reports

Detailed analysis for Hamilton County, Iowa

Overview

Hamilton 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 8 ZIP codes 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 Hamilton County?
Hamilton County is served by 3 public water systems that supply drinking water to residents across 9 ZIP codes.
What is the biggest environmental risk in Hamilton County?
The primary environmental risk factor in Hamilton County is flood. This contributes to an estimated additional annual cost of $1,358 per homeowner.
How old are homes in Hamilton County?
The median home build year in Hamilton County is 1949. 84% 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). Hamilton County, Iowa Home Safety Profile. https://zipcheckup.com/county/iowa/hamilton/
BibTeX
@misc{zipcheckup-county-iowa-hamilton,
  author = {{ZipCheckup}},
  title  = {{Hamilton County, Iowa Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/iowa/hamilton/}
}

Page version: August 2026.

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