ZIP Codes with Highest Flood Risk in Wisconsin

Out of 504 ZIP codes with data in Wisconsin, these are the highest-ranked areas for historical nfip claims. See also: National ZIP Codes with the Most Historical NFIP Claims | All Wisconsin Rankings

Statistic	Value
ZIP codes ranked	504
Highest value	886 claims
Median value	5 claims
State	Wisconsin

Top 100 Worst ZIP Codes

Rank	ZIP Code	City	State	Historical NFIP Claims	Safety Score
1	53218	Milwaukee	WI	886 claims	83/100
2	53209	Milwaukee	WI	555 claims	83/100
3	54935	Fond Du Lac	WI	443 claims	64/100
4	53538	Fort Atkinson	WI	373 claims	65/100
5	53217	Milwaukee	WI	260 claims	67/100
6	53092	Thiensville	WI	234 claims	67/100
7	53216	Milwaukee	WI	190 claims	83/100
8	53168	Salem	WI	159 claims	—
9	54603	La Crosse	WI	143 claims	60/100
10	54631	Gays Mills	WI	121 claims	—
11	53213	Milwaukee	WI	116 claims	83/100
12	54961	New London	WI	115 claims	—
13	54301	Green Bay	WI	105 claims	82/100
14	54302	Green Bay	WI	102 claims	82/100
15	53901	Portage	WI	98 claims	77/100
16	54153	Oconto	WI	98 claims	—
17	53534	Edgerton	WI	89 claims	64/100
18	53959	Reedsburg	WI	79 claims	83/100
19	53511	Beloit	WI	77 claims	66/100
20	53179	Trevor	WI	71 claims	—
21	53821	Prairie Du Chien	WI	64 claims	—
22	54303	Green Bay	WI	64 claims	82/100
23	54902	Oshkosh	WI	62 claims	—
24	53545	Janesville	WI	61 claims	66/100
25	53223	Milwaukee	WI	57 claims	—
26	54937	Fond Du Lac	WI	57 claims	64/100
27	54661	Trempealeau	WI	56 claims	—
28	53051	Menomonee Falls	WI	55 claims	62/100
29	53122	Elm Grove	WI	55 claims	65/100
30	53530	Darlington	WI	54 claims	—
31	54014	Hager City	WI	54 claims	—
32	53151	New Berlin	WI	52 claims	64/100
33	54235	Sturgeon Bay	WI	51 claims	50/100
34	53150	Muskego	WI	50 claims	60/100
35	53549	Jefferson	WI	48 claims	61/100
36	53563	Milton	WI	47 claims	67/100
37	53581	Richland Center	WI	47 claims	—
38	53080	Saukville	WI	46 claims	65/100
39	53227	Milwaukee	WI	46 claims	83/100
40	54703	Eau Claire	WI	43 claims	58/100
41	54923	Berlin	WI	43 claims	—
42	53185	Waterford	WI	42 claims	80/100
43	54612	Arcadia	WI	42 claims	—
44	54664	Viola	WI	42 claims	—
45	54940	Fremont	WI	42 claims	—
46	53208	Milwaukee	WI	41 claims	83/100
47	54601	La Crosse	WI	41 claims	57/100
48	53033	Hubertus	WI	40 claims	—
49	53094	Watertown	WI	40 claims	66/100
50	53170	Silver Lake	WI	39 claims	—
51	53961	Rock Springs	WI	39 claims	—
52	53968	Wonewoc	WI	39 claims	—
53	53005	Brookfield	WI	37 claims	64/100
54	53066	Oconomowoc	WI	37 claims	60/100
55	53105	Burlington	WI	37 claims	67/100
56	54141	Little Suamico	WI	37 claims	—
57	54401	Wausau	WI	36 claims	50/100
58	54639	La Farge	WI	36 claims	—
59	54021	Prescott	WI	35 claims	—
60	53222	Milwaukee	WI	34 claims	83/100
61	53560	Mazomanie	WI	34 claims	—
62	53955	Poynette	WI	34 claims	—
63	54963	Omro	WI	34 claims	—
64	53405	Racine	WI	33 claims	80/100
65	53548	Janesville	WI	33 claims	65/100
66	53072	Pewaukee	WI	32 claims	33/100
67	53404	Racine	WI	32 claims	80/100
68	54660	Tomah	WI	32 claims	83/100
69	53045	Brookfield	WI	31 claims	61/100
70	53929	Elroy	WI	30 claims	—
71	54634	Hillsboro	WI	30 claims	—
72	54655	Soldiers Grove	WI	30 claims	—
73	53211	Milwaukee	WI	29 claims	67/100
74	53546	Janesville	WI	29 claims	67/100
75	54170	Shiocton	WI	29 claims	—
76	54656	Sparta	WI	29 claims	83/100
77	54769	Stockholm	WI	29 claims	—
78	53555	Lodi	WI	28 claims	—
79	53716	Madison	WI	28 claims	65/100
80	54173	Suamico	WI	27 claims	—
81	54311	Green Bay	WI	27 claims	80/100
82	54736	Durand	WI	26 claims	—
83	53188	Waukesha	WI	25 claims	33/100
84	53215	Milwaukee	WI	25 claims	83/100
85	53225	Milwaukee	WI	25 claims	83/100
86	53925	Columbus	WI	25 claims	80/100
87	54456	Neillsville	WI	24 claims	—
88	53081	Sheboygan	WI	23 claims	66/100
89	53941	La Valle	WI	22 claims	—
90	53949	Montello	WI	22 claims	—
91	53027	Hartford	WI	21 claims	—
92	53801	Bagley	WI	21 claims	—
93	54017	New Richmond	WI	21 claims	—
94	54457	Nekoosa	WI	21 claims	—
95	53012	Cedarburg	WI	20 claims	81/100
96	53226	Milwaukee	WI	20 claims	83/100
97	53575	Oregon	WI	20 claims	60/100
98	53588	Spring Green	WI	20 claims	—
99	54871	Shell Lake	WI	20 claims	—
100	54952	Menasha	WI	20 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.

ZIP Codes with Highest Flood Risk in Wisconsin — 2026

Top 100 Worst ZIP Codes

Methodology

Frequently Asked Questions

What does this ranking show?

Where does the claim data come from?

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