2026 Rankings

ZIP Codes with Highest Flood Risk in Iowa — 2026

Last updated: August 31, 2026

447 ZIP codes ranked by Historical NFIP Claims #1: ZIP 50613 (Cedar Falls, IA) - 781 claims

Out of 447 ZIP codes with data in Iowa, these are the highest-ranked areas for historical nfip claims. See also: National ZIP Codes with the Most Historical NFIP Claims | All Iowa Rankings

Statistic Value
ZIP codes ranked 447
Highest value 781 claims
Median value 5 claims
State Iowa

Top 100 Worst ZIP Codes

Rank ZIP Code City State Historical NFIP Claims Safety Score
1 50613 Cedar Falls IA 781 claims 67/100
2 51501 Council Bluffs IA 581 claims 67/100
3 52802 Davenport IA 580 claims 50/100
4 50677 Waverly IA 548 claims 49/100
5 52405 Cedar Rapids IA 529 claims 66/100
6 50265 West Des Moines IA 413 claims 67/100
7 52767 Pleasant Valley IA 413 claims
8 52722 Bettendorf IA 393 claims 45/100
9 50312 Des Moines IA 377 claims 67/100
10 50644 Independence IA 332 claims
11 52601 Burlington IA 324 claims
12 52404 Cedar Rapids IA 306 claims 66/100
13 52761 Muscatine IA 250 claims 50/100
14 50701 Waterloo IA 243 claims 49/100
15 50616 Charles City IA 242 claims
16 52803 Davenport IA 206 claims 50/100
17 50401 Mason City IA 202 claims
18 50317 Des Moines IA 201 claims 67/100
19 50010 Ames IA 191 claims
20 50660 New Hartford IA 181 claims
21 51555 Missouri Valley IA 173 claims
22 52040 Dyersville IA 171 claims
23 51503 Council Bluffs IA 159 claims 67/100
24 50651 La Porte City IA 150 claims 66/100
25 51103 Sioux City IA 149 claims 49/100
26 52401 Cedar Rapids IA 146 claims 67/100
27 51012 Cherokee IA 140 claims
28 52753 Le Claire IA 133 claims 49/100
29 51640 Hamburg IA 132 claims
30 52246 Iowa City IA 130 claims 63/100
31 52806 Davenport IA 126 claims 50/100
32 52240 Iowa City IA 114 claims 57/100
33 52241 Coralville IA 112 claims 67/100
34 52801 Davenport IA 109 claims 50/100
35 50313 Des Moines IA 108 claims 67/100
36 52215 Chelsea IA 104 claims
37 52501 Ottumwa IA 95 claims
38 50325 Clive IA 93 claims 67/100
39 52349 Vinton IA 90 claims
40 52728 Buffalo IA 90 claims
41 52057 Manchester IA 84 claims
42 51442 Denison IA 82 claims
43 50501 Fort Dodge IA 81 claims 64/100
44 50702 Waterloo IA 81 claims 50/100
45 52730 Camanche IA 78 claims 67/100
46 51301 Spencer IA 76 claims
47 52043 Elkader IA 75 claims
48 50626 Dunkerton IA 74 claims
49 52807 Davenport IA 74 claims 50/100
50 52324 Palo IA 73 claims 66/100
51 52403 Cedar Rapids IA 73 claims 67/100
52 51526 Crescent IA 72 claims
53 51648 Percival IA 70 claims
54 52627 Fort Madison IA 67 claims
55 52732 Clinton IA 64 claims 50/100
56 51246 Rock Rapids IA 63 claims
57 50636 Greene IA 61 claims
58 51561 Pacific Junction IA 60 claims
59 50703 Waterloo IA 59 claims 50/100
60 52214 Central City IA 59 claims
61 52756 Long Grove IA 59 claims
62 52052 Guttenberg IA 56 claims
63 51104 Sioux City IA 53 claims 49/100
64 52646 Oakville IA 52 claims
65 52653 Wapello IA 52 claims
66 52245 Iowa City IA 49 claims 62/100
67 50316 Des Moines IA 48 claims 67/100
68 50662 Oelwein IA 46 claims
69 51566 Red Oak IA 46 claims 66/100
70 52001 Dubuque IA 46 claims
71 52632 Keokuk IA 46 claims
72 50707 Evansdale IA 43 claims 50/100
73 50647 Janesville IA 42 claims 67/100
74 52402 Cedar Rapids IA 40 claims 67/100
75 50548 Humboldt IA 39 claims
76 52768 Princeton IA 38 claims
77 50309 Des Moines IA 37 claims 67/100
78 51532 Elliott IA 37 claims
79 52310 Monticello IA 37 claims
80 52746 Donahue IA 37 claims
81 50315 Des Moines IA 36 claims 67/100
82 51535 Griswold IA 34 claims
83 50619 Clarksville IA 32 claims
84 50670 Shell Rock IA 31 claims
85 52358 West Branch IA 30 claims
86 50158 Marshalltown IA 29 claims
87 50322 Urbandale IA 29 claims 63/100
88 50161 Maxwell IA 28 claims
89 50595 Webster City IA 28 claims
90 52039 Durango IA 28 claims
91 50321 Des Moines IA 27 claims 67/100
92 52301 Marengo IA 27 claims
93 52320 Olin IA 27 claims
94 52620 Bonaparte IA 27 claims 67/100
95 52766 Nichols IA 27 claims
96 50131 Johnston IA 26 claims 66/100
97 52205 Anamosa IA 26 claims
98 52339 Tama IA 26 claims
99 52302 Marion IA 25 claims 67/100
100 52720 Atalissa IA 25 claims

Methodology

This ranking uses historical FEMA National Flood Insurance Program claim records. The entity is not a complete inventory of properties, flood events, uninsured losses, or current FEMA map designations. ZIPs without claim evidence are unknown and are not ranked as zero or low risk.

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: 2026-08-31.

Frequently Asked Questions

What does this ranking show?

It shows historical NFIP claim counts for ZIP records where FEMA claim evidence is available. It does not determine the current flood zone or risk of a specific property.

Where does the claim data come from?

The records come from FEMA National Flood Insurance Program claims. They do not include a complete inventory of uninsured losses or current property-map designations.

Explore More Rankings

How this ranking is calculated, data sources, and limitations: Rankings Methodology →


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Disclaimer: Rankings are based on EPA, FEMA, and federal agency data. They reflect historical patterns and risk indicators, not necessarily current conditions. For the most current information, contact your local water utility or request a Consumer Confidence Report.

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