Out of 1,058 ZIP codes with data in Iowa, these are the highest-ranked areas for safety score. See also: National Safest ZIP Codes in America — Highest Safety Scores | All Iowa Rankings
| Statistic | Value |
|---|---|
| ZIP codes ranked | 1,058 |
| Highest value | 70/100 |
| Median value | 63/100 |
| State | Iowa |
Top 100 Worst ZIP Codes
| Rank | ZIP Code | City | State | Safety Score | Safety Score |
|---|---|---|---|---|---|
| 1 | 50006 | Alden | IA | 70/100 | 70/100 |
| 2 | 50020 | Anita | IA | 70/100 | 70/100 |
| 3 | 50032 | Berwick | IA | 70/100 | 70/100 |
| 4 | 50035 | Bondurant | IA | 70/100 | 70/100 |
| 5 | 50044 | Bussey | IA | 70/100 | 70/100 |
| 6 | 50046 | Cambridge | IA | 70/100 | 70/100 |
| 7 | 50055 | Collins | IA | 70/100 | 70/100 |
| 8 | 50058 | Coon Rapids | IA | 70/100 | 70/100 |
| 9 | 50063 | Dallas Center | IA | 70/100 | 70/100 |
| 10 | 50072 | Earlham | IA | 70/100 | 70/100 |
| 11 | 50076 | Exira | IA | 70/100 | 70/100 |
| 12 | 50105 | Gilbert | IA | 70/100 | 70/100 |
| 13 | 50115 | Guthrie Center | IA | 70/100 | 70/100 |
| 14 | 50119 | Harvey | IA | 70/100 | 70/100 |
| 15 | 50129 | Jefferson | IA | 70/100 | 70/100 |
| 16 | 50135 | Kellogg | IA | 70/100 | 70/100 |
| 17 | 50160 | Martensdale | IA | 70/100 | 70/100 |
| 18 | 50173 | Montour | IA | 70/100 | 70/100 |
| 19 | 50220 | Perry | IA | 70/100 | 70/100 |
| 20 | 50225 | Pleasantville | IA | 70/100 | 70/100 |
| 21 | 50233 | Redfield | IA | 70/100 | 70/100 |
| 22 | 50236 | Roland | IA | 70/100 | 70/100 |
| 23 | 50258 | Union | IA | 70/100 | 70/100 |
| 24 | 50266 | West Des Moines | IA | 70/100 | 70/100 |
| 25 | 50268 | What Cheer | IA | 70/100 | 70/100 |
| 26 | 50273 | Winterset | IA | 70/100 | 70/100 |
| 27 | 50421 | Belmond | IA | 70/100 | 70/100 |
| 28 | 50428 | Clear Lake | IA | 70/100 | 70/100 |
| 29 | 50459 | Northwood | IA | 70/100 | 70/100 |
| 30 | 50468 | Rockford | IA | 70/100 | 70/100 |
| 31 | 50471 | Rudd | IA | 70/100 | 70/100 |
| 32 | 50475 | Sheffield | IA | 70/100 | 70/100 |
| 33 | 50479 | Thornton | IA | 70/100 | 70/100 |
| 34 | 50531 | Dolliver | IA | 70/100 | 70/100 |
| 35 | 50536 | Emmetsburg | IA | 70/100 | 70/100 |
| 36 | 50542 | Goldfield | IA | 70/100 | 70/100 |
| 37 | 50569 | Otho | IA | 70/100 | 70/100 |
| 38 | 50588 | Storm Lake | IA | 70/100 | 70/100 |
| 39 | 50601 | Ackley | IA | 70/100 | 70/100 |
| 40 | 50621 | Conrad | IA | 70/100 | 70/100 |
| 41 | 50624 | Dike | IA | 70/100 | 70/100 |
| 42 | 50625 | Dumont | IA | 70/100 | 70/100 |
| 43 | 50628 | Elma | IA | 70/100 | 70/100 |
| 44 | 50632 | Garwin | IA | 70/100 | 70/100 |
| 45 | 50638 | Grundy Center | IA | 70/100 | 70/100 |
| 46 | 50643 | Hudson | IA | 70/100 | 70/100 |
| 47 | 50653 | Marble Rock | IA | 70/100 | 70/100 |
| 48 | 50655 | Maynard | IA | 70/100 | 70/100 |
| 49 | 50666 | Plainfield | IA | 70/100 | 70/100 |
| 50 | 50668 | Readlyn | IA | 70/100 | 70/100 |
| 51 | 50682 | Winthrop | IA | 70/100 | 70/100 |
| 52 | 50704 | Waterloo | IA | 70/100 | 70/100 |
| 53 | 50833 | Bedford | IA | 70/100 | 70/100 |
| 54 | 50841 | Corning | IA | 70/100 | 70/100 |
| 55 | 51003 | Alton | IA | 70/100 | 70/100 |
| 56 | 51004 | Anthon | IA | 70/100 | 70/100 |
| 57 | 51023 | Hawarden | IA | 70/100 | 70/100 |
| 58 | 51028 | Kingsley | IA | 70/100 | 70/100 |
| 59 | 51031 | Le Mars | IA | 70/100 | 70/100 |
| 60 | 51038 | Merrill | IA | 70/100 | 70/100 |
| 61 | 51040 | Onawa | IA | 70/100 | 70/100 |
| 62 | 51041 | Orange City | IA | 70/100 | 70/100 |
| 63 | 51054 | Sergeant Bluff | IA | 70/100 | 70/100 |
| 64 | 51062 | Westfield | IA | 70/100 | 70/100 |
| 65 | 51063 | Whiting | IA | 70/100 | 70/100 |
| 66 | 51101 | Sioux City | IA | 70/100 | 70/100 |
| 67 | 51102 | Sioux City | IA | 70/100 | 70/100 |
| 68 | 51105 | Sioux City | IA | 70/100 | 70/100 |
| 69 | 51108 | Sioux City | IA | 70/100 | 70/100 |
| 70 | 51201 | Sheldon | IA | 70/100 | 70/100 |
| 71 | 51234 | Boyden | IA | 70/100 | 70/100 |
| 72 | 51237 | George | IA | 70/100 | 70/100 |
| 73 | 51242 | Lester | IA | 70/100 | 70/100 |
| 74 | 51250 | Sioux Center | IA | 70/100 | 70/100 |
| 75 | 51338 | Everly | IA | 70/100 | 70/100 |
| 76 | 51346 | Hartley | IA | 70/100 | 70/100 |
| 77 | 51351 | Milford | IA | 70/100 | 70/100 |
| 78 | 51355 | Okoboji | IA | 70/100 | 70/100 |
| 79 | 51358 | Ruthven | IA | 70/100 | 70/100 |
| 80 | 51445 | Ida Grove | IA | 70/100 | 70/100 |
| 81 | 51448 | Kiron | IA | 70/100 | 70/100 |
| 82 | 51455 | Manning | IA | 70/100 | 70/100 |
| 83 | 51458 | Odebolt | IA | 70/100 | 70/100 |
| 84 | 51465 | Vail | IA | 70/100 | 70/100 |
| 85 | 51523 | Blencoe | IA | 70/100 | 70/100 |
| 86 | 51564 | Pisgah | IA | 70/100 | 70/100 |
| 87 | 51601 | Shenandoah | IA | 70/100 | 70/100 |
| 88 | 51632 | Clarinda | IA | 70/100 | 70/100 |
| 89 | 51639 | Farragut | IA | 70/100 | 70/100 |
| 90 | 52031 | Bellevue | IA | 70/100 | 70/100 |
| 91 | 52035 | Colesburg | IA | 70/100 | 70/100 |
| 92 | 52042 | Edgewood | IA | 70/100 | 70/100 |
| 93 | 52047 | Farmersburg | IA | 70/100 | 70/100 |
| 94 | 52049 | Garnavillo | IA | 70/100 | 70/100 |
| 95 | 52068 | Peosta | IA | 70/100 | 70/100 |
| 96 | 52072 | Saint Olaf | IA | 70/100 | 70/100 |
| 97 | 52142 | Fayette | IA | 70/100 | 70/100 |
| 98 | 52144 | Fort Atkinson | IA | 70/100 | 70/100 |
| 99 | 52147 | Hawkeye | IA | 70/100 | 70/100 |
| 100 | 52151 | Lansing | IA | 70/100 | 70/100 |
Methodology
The Home Safety Score (0-100) combines four data dimensions: EPA water violation history, lead exposure risk from infrastructure and sampling data, county-level EPA radon zone classification, and FEMA flood claim records. A score of 99-100 indicates minimal risk across all dimensions.
Data sources: EPA Safe Drinking Water Information System (SDWIS), FEMA National Flood Insurance Program, EPA radon zone maps, EIA electricity rates, and Consumer Confidence Reports. Last updated: 2026-06-04.
Frequently Asked Questions
What makes a ZIP code safe?
The safest ZIP codes have zero or very few EPA violations, lead levels well below the action level, low radon zone classification (Zone 3), and minimal flood insurance claims. They typically have newer infrastructure and well-managed water systems.
Explore More Rankings
- Worst ZIP Codes for Lead in Water in Iowa
- ZIP Codes with Most EPA Violations in Iowa
- Lowest Home Safety Scores in Iowa
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- ZIP Codes with Highest Energy Costs in Iowa
- ZIP Codes with Highest Radon Risk in Iowa
- ZIP Codes with PFAS Detections in Iowa
- Least Reliable Water Systems in Iowa
- Environmental Justice Concern Areas in Iowa
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