Most Flood-Prone Counties in Minnesota

Based on NOAA Storm Events Database records from 1996 to 2025, these are the Minnesota counties with the most recorded flood events. St. Louis County tops the list with 104 events. The data includes river floods, flash floods, coastal flooding, and hurricane-related flooding.

Rank	County	Total Events	River Floods	Flash Floods
1	St. Louis County	104	15	89
2	Winona County	95	64	31
3	Pipestone County	87	77	10
4	Mower County	83	50	33
5	Wabasha County	78	59	19
6	Rock County	65	47	18
7	Lyon County	61	34	27
8	Cottonwood County	54	43	11
9	Olmsted County	54	37	17
10	Polk County	54	16	38
11	Hennepin County	54	2	52
12	Jackson County	52	36	16
13	Clay County	51	19	32
14	Wilkin County	50	15	35
15	Otter Tail County	50	11	39
16	Fillmore County	44	10	34
17	Houston County	40	17	23
18	Murray County	38	23	15
19	Kittson County	38	22	16
20	Blue Earth County	34	12	22
21	Marshall County	33	15	18
22	Nobles County	32	8	24
23	Lincoln County	31	26	5
24	Aitkin County	29	13	16
25	Dodge County	28	11	17
26	Itasca County	27	2	25
27	Waseca County	26	8	18
28	Freeborn County	26	10	16
29	Becker County	25	9	16
30	Scott County	25	9	16
31	Carver County	24	7	17
32	Dakota County	24	3	21
33	Norman County	24	12	12
34	Rice County	24	6	18
35	Steele County	24	5	19
36	Crow Wing County	23	12	11
37	Faribault County	23	6	17
38	Traverse County	23	21	2
39	Carlton County	22	4	18
40	Goodhue County	22	2	20
41	McLeod County	21	3	18
42	Pine County	21	2	19
43	Stearns County	21	3	18
44	Ramsey County	21	2	19
45	Cook County	20	3	17
46	Redwood County	19	8	11
47	Renville County	19	6	13
48	Grant County	18	8	10
49	Le Sueur County	18	7	11
50	Martin County	18	3	15
51	Red Lake County	18	5	13
52	Sibley County	18	8	10
53	Roseau County	18	6	12
54	Anoka County	17	0	17
55	Beltrami County	17	4	13
56	Big Stone County	17	14	3
57	Watonwan County	17	7	10
58	Nicollet County	17	6	11
59	Wright County	17	4	13
60	Lake County	17	2	15
61	Mahnomen County	16	6	10
62	Clearwater County	15	6	9
63	Brown County	14	10	4
64	Wadena County	14	4	10
65	Morrison County	14	3	11
66	Pennington County	14	4	10
67	Pope County	14	3	11
68	Lake of the Woods County	12	1	11
69	Kandiyohi County	11	2	9
70	Todd County	10	1	9
71	Lac qui Parle County	9	6	3
72	Mille Lacs County	9	0	9
73	Chippewa County	8	5	3
74	Stevens County	8	3	5
75	Washington County	8	0	8
76	Yellow Medicine County	8	3	5
77	Benton County	7	1	6
78	Hubbard County	7	2	5
79	Koochiching County	7	5	2
80	Douglas County	6	0	6
81	Kanabec County	6	0	6
82	Swift County	6	3	3
83	Meeker County	6	0	6
84	Isanti County	5	0	5
85	Cass County	4	1	3
86	Sherburne County	4	0	4
87	Chisago County	3	0	3

Source: NOAA Storm Events Database (1996–2025).

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Most Flood-Prone Counties in Minnesota

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