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Most Flood-Prone Counties in Missouri

Based on NOAA Storm Events Database records from 1996 to 2025, these are the Missouri counties with the most recorded flood events. Douglas County tops the list with 366 events. The data includes river floods, flash floods, coastal flooding, and hurricane-related flooding.

RankCountyTotal EventsRiver FloodsFlash Floods
1Douglas County366188178
2Greene County36568297
3Howell County29095195
4Ozark County267141126
5Wright County262144118
6Barry County25975184
7Webster County25381172
8Newton County23142189
9Jasper County21972147
10McDonald County21359154
11Polk County20453151
12Laclede County17667109
13Jackson County17128143
14Christian County16235127
15Cape Girardeau County15910653
16Lawrence County15947112
17Taney County15235117
18Texas County1465294
19Dallas County14644102
20Shannon County1446975
21Barton County1436479
22Morgan County1253392
23Benton County1243094
24Stone County1222597
25Vernon County1153481
26Butler County1105258
27Wayne County1087038
28Phelps County1063670
29Miller County1031489
30Camden County1012477
31Dent County994653
32Pulaski County992475
33Hickory County883751
34Oregon County822557
35Clay County811863
36St. Louis County811368
37Boone County80971
38Clark County783345
39Ripley County773839
40Maries County741460
41Johnson County732647
42Cass County711457
43Henry County684127
44New Madrid County655015
45Bollinger County652342
46Platte County641450
47Scott County634122
48Perry County623230
49Saline County623329
50Cooper County612833
51Carter County603030
52Dade County591148
53Stoddard County592336
54St. Clair County58652
55Lincoln County511338
56St. Charles County511140
57Jefferson County50941
58Cedar County48840
59Franklin County461036
60Lafayette County442024
61Nodaway County441331
62Daviess County431825
63Macon County43637
64Buchanan County422022
65Chariton County423012
66Adair County40733
67Callaway County40535
68Grundy County39930
69Audrain County39534
70Howard County391920
71Crawford County37730
72St. Louis city37433
73Dunklin County37433
74Osage County37730
75Lewis County36927
76Cole County35926
77Mississippi County352510
78Pettis County35530
79Carroll County331221
80Montgomery County32428
81Scotland County32230
82Gasconade County31823
83Moniteau County31427
84Livingston County301911
85Ray County30921
86St. Francois County30228
87Marion County291019
88Warren County29623
89Monroe County28226
90Atchison County281711
91Ralls County271017
92Washington County26224
93Bates County26620
94Knox County26125
95Andrew County251015
96Holt County25619
97Madison County25223
98Reynolds County25223
99Iron County24222
100Shelby County24024
101Pike County23914
102Putnam County23122
103Caldwell County22913
104Linn County22418
105DeKalb County21615
106Gentry County21120
107Harrison County20317
108Ste. Genevieve County19415
109Clinton County16412
110Pemiscot County16313
111Randolph County16115
112Schuyler County14014
113Mercer County13112
114Sullivan County13310
115Worth County413

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

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