ZIP codes at the highest natural hazard risk in Iowa

The 25 ZIP codes in Iowa with the highest FEMA risk percentile, and the 25 with the lowest, out of 470 with a published figure and at least 1,000 residents.

Highest FEMA risk percentile

	ZIP	Place	Fema risk percentile	Population
1	50020	Anita, IA	97.4	1,277
2	52537	Bloomfield, IA	97.4	7,012
3	52223	Delhi, IA	97.4	1,170
4	52330	Ryan, IA	97.4	1,186
5	51443	Glidden, IA	96.8	1,623
6	52237	Hopkinton, IA	96.8	1,526
7	50216	Panora, IA	95.8	2,809
8	50461	Osage, IA	95.8	5,094
9	50466	Riceville, IA	95.4	2,089
10	50002	Adair, IA	95.3	1,522
11	50250	Stuart, IA	95.2	2,652
12	50006	Alden, IA	95	1,503
13	52565	Keosauqua, IA	94.8	1,868
14	51449	Lake City, IA	94.7	1,951
15	52570	Milton, IA	94.5	1,104
16	51016	Correctionville, IA	94.5	1,095
17	50025	Audubon, IA	94.4	2,893
18	50076	Exira, IA	94.3	1,356
19	50846	Fontanelle, IA	94.2	1,223
20	50801	Creston, IA	94.1	9,027
21	50574	Pocahontas, IA	93.9	2,103
22	51461	Schleswig, IA	93.8	1,150
23	51240	Inwood, IA	93.7	1,842
24	51241	Larchwood, IA	93.7	2,052
25	50540	Fonda, IA	93.6	1,253

Lowest FEMA risk percentile

	ZIP	Place	Fema risk percentile	Population
1	50320	Des Moines, IA	17.8	23,903
2	50013	Ames, IA	19.8	4,248
3	50311	Des Moines, IA	19.9	15,889
4	50315	Des Moines, IA	21.4	35,349
5	50310	Des Moines, IA	23.6	31,283
6	50702	Waterloo, IA	25.9	21,197
7	50312	Des Moines, IA	27.6	15,492
8	52802	Davenport, IA	27.6	9,392
9	50321	Des Moines, IA	28.6	7,787
10	50131	Johnston, IA	28.9	24,388
11	50322	Urbandale, IA	29.3	31,694
12	50314	Des Moines, IA	30.2	10,203
13	50105	Gilbert, IA	30.2	1,384
14	52345	Urbana, IA	30.3	1,636
15	52402	Cedar Rapids, IA	30.6	43,076
16	50327	Pleasant Hill, IA	31.1	12,875
17	50668	Readlyn, IA	33	1,231
18	50316	Des Moines, IA	33.7	16,188
19	52003	Dubuque, IA	34	13,735
20	50707	Evansdale, IA	34.5	7,407
21	50211	Norwalk, IA	36.4	16,222
22	52803	Davenport, IA	37.1	21,868
23	50317	Des Moines, IA	37.4	36,721
24	52328	Robins, IA	38.2	2,861
25	50047	Carlisle, IA	38.3	6,625

ZIP codes at the highest natural hazard risk — the whole United States

ZIP codes with fewer than 1,000 residents are excluded: a median drawn from a handful of households carries a margin of error wider than the differences being ranked. Figures the Census suppressed as unreliable are excluded too, so a ZIP code missing here has no published value rather than a low one.