COUNTY REPORT IA

Madison County, Iowa

7 ZIP codes · Home Safety Score unavailable · 0 of 7 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 7 tracked ZIP records scored
7
ZIP Codes
$217K
Median Home Value

ZIP Code Risk Map

Water Quality Map: Madison 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: 12.7 (asthma 9.8%, diabetes 10.5%)

Modeled additional annual cost estimate per homeowner: $411, largest modeled factor: Energy Code Gap

53% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 9.8% (national: 8.9%)
Diabetes 10.5% (national: 10.5%)
Obesity 37.2% (national: 32.4%)

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

Infrastructure Overview

1972
Median Build Year
53%
Pre-1980 Housing
51/100
Infrastructure Stress Indicator
86%
ZIPs with High Infrastructure Stress
Low
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: $411

Energy Code Gap $283/yr
Flood $200/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

5,841 housing units in Madison County

Pre-1940 28%
1940–1959 8%
1960–1979 17%
1980–1999 17%
2000+ 30%

Source: U.S. Census Bureau ACS B25034 (Year Structure Built).

Health Outcomes vs National Average

CDC PLACES data for Madison County residents

Asthma 9.8% (US avg: 8.9%)
Diabetes 10.5% (US avg: 11%)
Obesity 37.2% (US avg: 32.4%)

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

Water systems mapped to Madison County ZIP codes

2 community water systems mapped to Madison County ZIP codes; EPA may list more systems serving the county.

All ZIP Codes in Madison County

7 ZIP codes tracked in Madison County.

# ZIP Code City Safety Score Grade Violations Home Value
1 50033 Bevington — — —
2 50072 Earlham — — 0 $299K
3 50155 Macksburg — — $94K
4 50218 Patterson — — $107K
5 50222 Peru — — $234K
6 50257 Truro — — $218K
7 50273 Winterset — — 0 $216K

Recommended Buyer Guides for Madison County

Which guides appear depends on what the county data show.

Overview

Madison County in Iowa covers 7 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 2 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 Madison County?
We map 2 public water systems to 7 ZIP codes in our data for Madison County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Madison County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Madison County is energy code gap. Across all modeled risk factors, the estimated average additional annual cost is $411 per homeowner; actual costs vary by home.
How old are homes in Madison County?
The median home build year in Madison County is 1972. 53% 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). Madison County, Iowa Home Safety Profile. https://zipcheckup.com/county/iowa/madison/
BibTeX
@misc{zipcheckup-county-iowa-madison,
  author = {{ZipCheckup}},
  title  = {{Madison County, Iowa Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/iowa/madison/}
}

Page version: October 2026.

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