ZIP Codes with Highest Flood Risk in Iowa

Out of 447 ZIP codes with data in Iowa, these are the highest-ranked areas for flood claims. See also: National ZIP Codes with Highest Flood Risk | 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	Flood Claims	Safety Score
1	50613	Cedar Falls	IA	781 claims	54/100
2	51501	Council Bluffs	IA	581 claims	51/100
3	52802	Davenport	IA	580 claims	44/100
4	50677	Waverly	IA	548 claims	54/100
5	52405	Cedar Rapids	IA	536 claims	50/100
6	50265	West Des Moines	IA	413 claims	55/100
7	52767	Pleasant Valley	IA	413 claims	55/100
8	52722	Bettendorf	IA	393 claims	43/100
9	50312	Des Moines	IA	377 claims	51/100
10	50644	Independence	IA	332 claims	50/100
11	52601	Burlington	IA	320 claims	55/100
12	52404	Cedar Rapids	IA	305 claims	50/100
13	52761	Muscatine	IA	250 claims	54/100
14	50701	Waterloo	IA	243 claims	55/100
15	50616	Charles City	IA	242 claims	52/100
16	52803	Davenport	IA	206 claims	44/100
17	50401	Mason City	IA	202 claims	55/100
18	50010	Ames	IA	190 claims	58/100
19	50317	Des Moines	IA	185 claims	56/100
20	50660	New Hartford	IA	181 claims	58/100
21	51555	Missouri Valley	IA	173 claims	46/100
22	52040	Dyersville	IA	171 claims	60/100
23	51503	Council Bluffs	IA	159 claims	56/100
24	50651	La Porte City	IA	150 claims	60/100
25	51103	Sioux City	IA	149 claims	60/100
26	52401	Cedar Rapids	IA	146 claims	55/100
27	51012	Cherokee	IA	140 claims	60/100
28	52753	Le Claire	IA	133 claims	60/100
29	51640	Hamburg	IA	132 claims	60/100
30	52246	Iowa City	IA	127 claims	46/100
31	52806	Davenport	IA	126 claims	49/100
32	52240	Iowa City	IA	114 claims	46/100
33	52241	Coralville	IA	112 claims	52/100
34	52801	Davenport	IA	109 claims	49/100
35	50313	Des Moines	IA	108 claims	56/100
36	52215	Chelsea	IA	104 claims	54/100
37	52501	Ottumwa	IA	95 claims	57/100
38	50325	Clive	IA	93 claims	52/100
39	52349	Vinton	IA	90 claims	60/100
40	52728	Buffalo	IA	90 claims	57/100
41	52057	Manchester	IA	84 claims	60/100
42	51442	Denison	IA	82 claims	60/100
43	50501	Fort Dodge	IA	81 claims	35/100
44	50702	Waterloo	IA	81 claims	60/100
45	52730	Camanche	IA	78 claims	60/100
46	51301	Spencer	IA	76 claims	60/100
47	52043	Elkader	IA	75 claims	59/100
48	50626	Dunkerton	IA	74 claims	59/100
49	52807	Davenport	IA	74 claims	49/100
50	52324	Palo	IA	73 claims	59/100
51	52403	Cedar Rapids	IA	73 claims	55/100
52	51526	Crescent	IA	72 claims	58/100
53	51648	Percival	IA	70 claims	40/100
54	52627	Fort Madison	IA	67 claims	52/100
55	52732	Clinton	IA	64 claims	60/100
56	51246	Rock Rapids	IA	63 claims	60/100
57	50636	Greene	IA	61 claims	59/100
58	51561	Pacific Junction	IA	60 claims	56/100
59	50703	Waterloo	IA	59 claims	60/100
60	52214	Central City	IA	59 claims	60/100
61	52756	Long Grove	IA	59 claims	57/100
62	52052	Guttenberg	IA	56 claims	60/100
63	51104	Sioux City	IA	53 claims	60/100
64	52646	Oakville	IA	52 claims	58/100
65	52653	Wapello	IA	52 claims	59/100
66	52245	Iowa City	IA	49 claims	51/100
67	50316	Des Moines	IA	48 claims	61/100
68	50662	Oelwein	IA	46 claims	65/100
69	51566	Red Oak	IA	46 claims	64/100
70	52001	Dubuque	IA	46 claims	59/100
71	52632	Keokuk	IA	46 claims	63/100
72	50707	Evansdale	IA	43 claims	65/100
73	50647	Janesville	IA	42 claims	64/100
74	52402	Cedar Rapids	IA	40 claims	60/100
75	50548	Humboldt	IA	39 claims	62/100
76	52768	Princeton	IA	38 claims	64/100
77	51532	Elliott	IA	37 claims	54/100
78	52310	Monticello	IA	37 claims	64/100
79	52746	Donahue	IA	37 claims	65/100
80	50315	Des Moines	IA	36 claims	61/100
81	50309	Des Moines	IA	35 claims	61/100
82	51535	Griswold	IA	34 claims	61/100
83	50619	Clarksville	IA	32 claims	65/100
84	50670	Shell Rock	IA	31 claims	65/100
85	52358	West Branch	IA	30 claims	58/100
86	50158	Marshalltown	IA	29 claims	47/100
87	50322	Urbandale	IA	29 claims	54/100
88	50595	Webster City	IA	28 claims	65/100
89	52039	Durango	IA	28 claims	45/100
90	50161	Maxwell	IA	27 claims	64/100
91	50321	Des Moines	IA	27 claims	61/100
92	52301	Marengo	IA	27 claims	50/100
93	52320	Olin	IA	27 claims	65/100
94	52620	Bonaparte	IA	27 claims	65/100
95	52766	Nichols	IA	27 claims	45/100
96	50131	Johnston	IA	26 claims	59/100
97	52205	Anamosa	IA	26 claims	61/100
98	52339	Tama	IA	26 claims	64/100
99	52302	Marion	IA	25 claims	57/100
100	52720	Atalissa	IA	25 claims	65/100

Methodology

Flood risk rankings use FEMA National Flood Insurance Program (NFIP) claim data. Total claims reflect historical flood events that resulted in insured property damage. High claim counts indicate areas with recurring flood exposure, which can compromise water infrastructure, introduce contaminant runoff, and damage home systems.

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

Why does flood history matter for home safety?

Flooding can contaminate drinking water supplies, damage water infrastructure, introduce sewage and chemical runoff, and compromise home foundations and electrical systems. Repeated flooding indicates persistent risk that affects long-term home safety.

Where does the flood data come from?

Flood claim data comes from the FEMA National Flood Insurance Program (NFIP), which tracks all insured flood losses by ZIP code. This includes claims from hurricanes, river flooding, storm surge, and heavy rainfall events.

ZIP Codes with Highest Flood Risk in Iowa — 2026

Top 100 Worst ZIP Codes

Methodology

Frequently Asked Questions

Why does flood history matter for home safety?

Where does the flood data come from?

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