Safest ZIP Codes in Iowa - 2026 Rankings
Explore water safety rankings for U.S. ZIP codes based on EPA SDWIS data. Each ZIP code receives a Home Safety Score (0–100) that reflects water violations, lead levels, and radon risk.
ZipCheckup ranks 1,058 Iowa ZIP codes by Home Safety Score; the state average is 59/100 (grade C), 8 points below the national average of 67/100.
Interactive Map - Home Safety Score by ZIP Code
Click any dot to view the full report for that ZIP code. Color indicates score tier.
50 Lowest-Scoring ZIP Codes
These ZIP codes have the lowest Home Safety Scores in our database. Lower scores reflect higher numbers of health-based water violations recorded in EPA data.
| # | ZIP Code | City | State | Score | Grade | Violations |
|---|---|---|---|---|---|---|
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50 Highest-Scoring ZIP Codes
These ZIP codes have the highest Home Safety Scores in our database, reflecting clean EPA records, low violation counts, and favorable environmental risk profiles.
| # | ZIP Code | City | State | Score | Grade | Violations |
|---|---|---|---|---|---|---|
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Home Safety Scores are calculated from equally weighted components: water violation history (EPA SDWIS), lead levels (EPA LCR 90th percentile), county-level radon risk zones, and FEMA NFIP flood claims. Scores range from 0 to 100 - higher is safer. Score methodology → · Rankings methodology →
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How to cite this page
ZipCheckup. (2026). Safest ZIP Codes in Iowa - 2026 Rankings. https://zipcheckup.com/rankings/iowa/
@misc{zipcheckup-rankings-iowa,
author = {{ZipCheckup}},
title = {{Safest ZIP Codes in Iowa - 2026 Rankings}},
year = {2026},
url = {https://zipcheckup.com/rankings/iowa/}
}
Data as of July 2026.
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