Most Flood-Prone Counties in Indiana

Based on NOAA Storm Events Database records from 1996 to 2025, these are the Indiana counties with the most recorded flood events. Gibson County tops the list with 271 events. The data includes river floods, flash floods, coastal flooding, and hurricane-related flooding.

Rank	County	Total Events	River Floods	Flash Floods
1	Gibson County	271	231	40
2	Posey County	201	169	32
3	Pike County	151	122	29
4	Ripley County	140	63	77
5	Vanderburgh County	135	69	66
6	Knox County	132	89	43
7	Warrick County	125	91	34
8	Marion County	101	44	57
9	Dubois County	96	22	74
10	Clark County	93	18	75
11	Lake County	85	49	36
12	Vigo County	81	45	36
13	Jackson County	77	47	30
14	Daviess County	75	40	35
15	Dearborn County	72	19	53
16	Vermillion County	72	51	21
17	Greene County	70	44	26
18	Tippecanoe County	69	46	23
19	Parke County	68	46	22
20	Sullivan County	63	37	26
21	Wayne County	63	29	34
22	Lawrence County	62	32	30
23	Perry County	62	36	26
24	Spencer County	62	30	32
25	Hamilton County	61	35	26
26	Franklin County	60	23	37
27	Delaware County	59	23	36
28	Harrison County	59	20	39
29	Jefferson County	59	29	30
30	Crawford County	58	10	48
31	Morgan County	57	28	29
32	Washington County	54	19	35
33	Porter County	53	28	25
34	Fountain County	53	36	17
35	Owen County	53	25	28
36	Floyd County	47	12	35
37	Madison County	47	24	23
38	Warren County	47	33	14
39	Switzerland County	42	11	31
40	Fayette County	42	17	25
41	Hendricks County	42	17	25
42	Boone County	40	23	17
43	Monroe County	39	14	25
44	Johnson County	38	20	18
45	Randolph County	38	12	26
46	Allen County	37	10	27
47	Orange County	37	4	33
48	Shelby County	36	16	20
49	Union County	35	13	22
50	Bartholomew County	35	16	19
51	Clay County	34	14	20
52	Martin County	34	13	21
53	Putnam County	33	8	25
54	Clinton County	31	13	18
55	Montgomery County	31	11	20
56	Carroll County	29	11	18
57	Brown County	26	5	21
58	Jennings County	26	11	15
59	Decatur County	25	11	14
60	Jasper County	24	11	13
61	Howard County	23	7	16
62	Huntington County	22	5	17
63	St. Joseph County	22	10	12
64	White County	22	3	19
65	Scott County	21	3	18
66	Benton County	21	7	14
67	Newton County	21	7	14
68	Ohio County	20	3	17
69	Elkhart County	19	13	6
70	Wabash County	19	9	10
71	Rush County	18	6	12
72	Cass County	18	4	14
73	Hancock County	18	8	10
74	Whitley County	18	8	10
75	Tipton County	17	10	7
76	Miami County	16	3	13
77	Jay County	16	7	9
78	Henry County	15	2	13
79	Kosciusko County	14	6	8
80	Grant County	14	8	6
81	Adams County	13	5	8
82	Fulton County	12	9	3
83	LaPorte County	11	4	7
84	Wells County	11	1	10
85	Marshall County	10	5	5
86	Blackford County	7	1	6
87	DeKalb County	7	3	4
88	Steuben County	7	4	3
89	LaGrange County	4	2	2
90	Pulaski County	4	1	3
91	Starke County	3	2	1
92	Noble County	3	2	1

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

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Most Flood-Prone Counties in Indiana

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