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 113 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	113	19	89
2	Winona County	98	67	31
3	Pipestone County	91	81	10
4	Mower County	85	52	33
5	Wabasha County	81	62	19
6	Rock County	68	50	18
7	Lyon County	64	37	27
8	Polk County	62	24	38
9	Hennepin County	62	10	52
10	Wilkin County	60	25	35
11	Clay County	57	25	32
12	Cottonwood County	57	46	11
13	Olmsted County	55	38	17
14	Jackson County	55	39	16
15	Kittson County	53	37	16
16	Otter Tail County	50	11	39
17	Fillmore County	48	14	34
18	Houston County	46	23	23
19	Marshall County	46	28	18
20	Blue Earth County	41	19	22
21	Murray County	40	25	15
22	Nobles County	34	10	24
23	Lincoln County	33	28	5
24	Carver County	32	15	17
25	Scott County	32	16	16
26	Aitkin County	32	16	16
27	Carlton County	31	8	18
28	Dakota County	31	10	21
29	Norman County	31	19	12
30	Dodge County	29	12	17
31	Goodhue County	29	9	20
32	Redwood County	29	18	11
33	Waseca County	29	11	18
34	Becker County	28	12	16
35	Traverse County	28	26	2
36	Freeborn County	28	12	16
37	Itasca County	27	2	25
38	McLeod County	27	9	18
39	Renville County	27	14	13
40	Steele County	27	8	19
41	Faribault County	26	9	17
42	Rice County	26	8	18
43	Crow Wing County	25	14	11
44	Sibley County	25	15	10
45	Ramsey County	25	6	19
46	Le Sueur County	24	13	11
47	Stearns County	24	6	18
48	Nicollet County	23	12	11
49	Pine County	23	4	19
50	Wright County	23	10	13
51	Roseau County	23	11	12
52	Big Stone County	22	18	3
53	Martin County	22	7	15
54	Cook County	21	3	17
55	Beltrami County	20	7	13
56	Grant County	20	10	10
57	Morrison County	20	9	11
58	Red Lake County	20	7	13
59	Anoka County	19	2	17
60	Brown County	19	15	4
61	Watonwan County	19	9	10
62	Mahnomen County	18	8	10
63	Lac qui Parle County	17	14	3
64	Pope County	17	6	11
65	Lake County	17	2	15
66	Lake of the Woods County	16	5	11
67	Chippewa County	15	12	3
68	Clearwater County	15	6	9
69	Kandiyohi County	15	6	9
70	Pennington County	15	5	10
71	Yellow Medicine County	15	10	5
72	Wadena County	14	4	10
73	Todd County	14	5	9
74	Mille Lacs County	13	4	9
75	Swift County	13	10	3
76	Washington County	13	5	8
77	Benton County	12	6	6
78	Kanabec County	11	5	6
79	Stevens County	11	6	5
80	Meeker County	11	5	6
81	Douglas County	10	4	6
82	Hubbard County	9	4	5
83	Koochiching County	7	5	2
84	Isanti County	7	2	5
85	Chisago County	6	3	3
86	Sherburne County	6	2	4
87	Cass County	5	2	3

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

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Most Flood-Prone Counties in Minnesota

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