Out of 1,058 ZIP codes with data in Iowa, these are the highest-ranked areas for purchase risk. See also: National Worst ZIP Codes for Homebuyers — Hidden Risk Factors | All Iowa Rankings
| Statistic | Value |
|---|---|
| ZIP codes ranked | 1,058 |
| Highest value | 71/100 |
| Median value | 38/100 |
| State | Iowa |
Top 100 Worst ZIP Codes
| Rank | ZIP Code | City | State | Purchase Risk | Safety Score |
|---|---|---|---|---|---|
| 1 | 52801 | Davenport | IA | 71/100 | 49/100 |
| 2 | 52310 | Monticello | IA | 70/100 | 64/100 |
| 3 | 52215 | Chelsea | IA | 69/100 | 54/100 |
| 4 | 52401 | Cedar Rapids | IA | 68/100 | 55/100 |
| 5 | 52242 | Iowa City | IA | 67/100 | 51/100 |
| 6 | 50501 | Fort Dodge | IA | 66/100 | 35/100 |
| 7 | 50557 | Lehigh | IA | 66/100 | 44/100 |
| 8 | 51451 | Lanesboro | IA | 66/100 | 50/100 |
| 9 | 52802 | Davenport | IA | 66/100 | 44/100 |
| 10 | 52405 | Cedar Rapids | IA | 64/100 | 50/100 |
| 11 | 51555 | Missouri Valley | IA | 63/100 | 46/100 |
| 12 | 50128 | Jamaica | IA | 62/100 | 32/100 |
| 13 | 52404 | Cedar Rapids | IA | 62/100 | 50/100 |
| 14 | 52646 | Oakville | IA | 62/100 | 58/100 |
| 15 | 52759 | Montpelier | IA | 62/100 | 53/100 |
| 16 | 52077 | Volga | IA | 61/100 | 65/100 |
| 17 | 52344 | Troy Mills | IA | 61/100 | 53/100 |
| 18 | 52403 | Cedar Rapids | IA | 61/100 | 55/100 |
| 19 | 52588 | Selma | IA | 61/100 | 53/100 |
| 20 | 51540 | Hastings | IA | 60/100 | 47/100 |
| 21 | 51561 | Pacific Junction | IA | 60/100 | 56/100 |
| 22 | 52341 | Toddville | IA | 60/100 | 66/100 |
| 23 | 52728 | Buffalo | IA | 60/100 | 57/100 |
| 24 | 50660 | New Hartford | IA | 59/100 | 58/100 |
| 25 | 51648 | Percival | IA | 59/100 | 40/100 |
| 26 | 50158 | Marshalltown | IA | 57/100 | 47/100 |
| 27 | 50552 | Knierim | IA | 57/100 | 60/100 |
| 28 | 50562 | Mallard | IA | 57/100 | 46/100 |
| 29 | 52168 | Spillville | IA | 57/100 | 68/100 |
| 30 | 52301 | Marengo | IA | 57/100 | 50/100 |
| 31 | 52720 | Atalissa | IA | 57/100 | 65/100 |
| 32 | 52761 | Muscatine | IA | 57/100 | 54/100 |
| 33 | 50032 | Berwick | IA | 56/100 | 70/100 |
| 34 | 50619 | Clarksville | IA | 56/100 | 65/100 |
| 35 | 50636 | Greene | IA | 56/100 | 59/100 |
| 36 | 51545 | Little Sioux | IA | 56/100 | 65/100 |
| 37 | 51640 | Hamburg | IA | 56/100 | 60/100 |
| 38 | 52048 | Garber | IA | 56/100 | 53/100 |
| 39 | 52554 | Eldon | IA | 56/100 | 62/100 |
| 40 | 50112 | Grinnell | IA | 55/100 | 36/100 |
| 41 | 50464 | Plymouth | IA | 55/100 | 61/100 |
| 42 | 50535 | Early | IA | 55/100 | 60/100 |
| 43 | 50611 | Bristow | IA | 55/100 | 55/100 |
| 44 | 50853 | Massena | IA | 55/100 | 60/100 |
| 45 | 51526 | Crescent | IA | 55/100 | 58/100 |
| 46 | 51535 | Griswold | IA | 55/100 | 61/100 |
| 47 | 52154 | Lawler | IA | 55/100 | 64/100 |
| 48 | 52313 | Mount Auburn | IA | 55/100 | 70/100 |
| 49 | 52362 | Wyoming | IA | 55/100 | 60/100 |
| 50 | 52766 | Nichols | IA | 55/100 | 45/100 |
| 51 | 52803 | Davenport | IA | 55/100 | 44/100 |
| 52 | 50312 | Des Moines | IA | 54/100 | 51/100 |
| 53 | 50541 | Gilmore City | IA | 54/100 | 65/100 |
| 54 | 50650 | Lamont | IA | 54/100 | 49/100 |
| 55 | 52043 | Elkader | IA | 54/100 | 59/100 |
| 56 | 52246 | Iowa City | IA | 54/100 | 46/100 |
| 57 | 52251 | Ladora | IA | 54/100 | 42/100 |
| 58 | 52320 | Olin | IA | 54/100 | 65/100 |
| 59 | 52756 | Long Grove | IA | 54/100 | 57/100 |
| 60 | 50066 | Dawson | IA | 53/100 | 45/100 |
| 61 | 50135 | Kellogg | IA | 53/100 | 70/100 |
| 62 | 50313 | Des Moines | IA | 53/100 | 56/100 |
| 63 | 50651 | La Porte City | IA | 53/100 | 60/100 |
| 64 | 51523 | Blencoe | IA | 53/100 | 70/100 |
| 65 | 52241 | Coralville | IA | 53/100 | 52/100 |
| 66 | 52722 | Bettendorf | IA | 53/100 | 43/100 |
| 67 | 50206 | New Providence | IA | 52/100 | 62/100 |
| 68 | 50470 | Rowan | IA | 52/100 | 62/100 |
| 69 | 51001 | Akron | IA | 52/100 | 63/100 |
| 70 | 51532 | Elliott | IA | 52/100 | 54/100 |
| 71 | 51533 | Emerson | IA | 52/100 | 65/100 |
| 72 | 52205 | Anamosa | IA | 52/100 | 61/100 |
| 73 | 52323 | Oxford Junction | IA | 52/100 | 70/100 |
| 74 | 52653 | Wapello | IA | 52/100 | 59/100 |
| 75 | 52768 | Princeton | IA | 52/100 | 64/100 |
| 76 | 50010 | Ames | IA | 51/100 | 58/100 |
| 77 | 50029 | Bayard | IA | 51/100 | 52/100 |
| 78 | 50144 | Leon | IA | 51/100 | 60/100 |
| 79 | 50274 | Wiota | IA | 51/100 | 59/100 |
| 80 | 50616 | Charles City | IA | 51/100 | 52/100 |
| 81 | 50626 | Dunkerton | IA | 51/100 | 59/100 |
| 82 | 50675 | Traer | IA | 51/100 | 68/100 |
| 83 | 51247 | Rock Valley | IA | 51/100 | 63/100 |
| 84 | 51544 | Lewis | IA | 51/100 | 65/100 |
| 85 | 52044 | Elkport | IA | 51/100 | 45/100 |
| 86 | 52164 | Randalia | IA | 51/100 | 53/100 |
| 87 | 52208 | Belle Plaine | IA | 51/100 | 44/100 |
| 88 | 52240 | Iowa City | IA | 51/100 | 46/100 |
| 89 | 52245 | Iowa City | IA | 51/100 | 51/100 |
| 90 | 52309 | Monmouth | IA | 51/100 | 70/100 |
| 91 | 52358 | West Branch | IA | 51/100 | 58/100 |
| 92 | 50317 | Des Moines | IA | 50/100 | 56/100 |
| 93 | 50472 | Saint Ansgar | IA | 50/100 | 69/100 |
| 94 | 50484 | Woden | IA | 50/100 | 61/100 |
| 95 | 50625 | Dumont | IA | 50/100 | 70/100 |
| 96 | 50631 | Frederika | IA | 50/100 | 53/100 |
| 97 | 50854 | Mount Ayr | IA | 50/100 | 62/100 |
| 98 | 51016 | Correctionville | IA | 50/100 | 65/100 |
Methodology
The Home Purchase Risk Score combines area indicators that may lead to added costs for homebuyers: water system violation records, lead service line indicators, county radon potential, flood zones and housing age. An indicator does not mean a home needs filtration, mitigation, insurance or upgrades; a home test or inspection decides that. These are factors that standard home inspections may not fully capture.
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: 2026-04-13.
Frequently Asked Questions
What is the Home Purchase Risk Score?
This score (0-100) estimates the hidden environmental costs a homebuyer may face: water filtration needs, lead pipe replacement, radon mitigation, flood insurance, and infrastructure upgrades. Higher scores mean more potential unexpected expenses after purchase.
What should homebuyers do in high-risk ZIP codes?
Request a water quality test, check for lead service lines with the utility, test for radon before closing, verify FEMA flood zone designation, and factor in potential remediation costs ($5,000-$30,000+) to your budget.
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
- Safest ZIP Codes in Iowa — Highest Safety Scores
- ZIP Codes with Highest Flood Risk in Iowa
- 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
- ZIP Codes with Worst CO & Gas Risk in Iowa
- Safest ZIP Codes for Gas & CO Risk in Iowa
- ZIP Codes with Worst Wildfire Smoke Risk
- Safest ZIP Codes for Wildfire Smoke
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