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Most Flood-Prone Counties in Kansas

Based on NOAA Storm Events Database records from 1996 to 2025, these are the Kansas counties with the most recorded flood events. Sedgwick County tops the list with 228 events. The data includes river floods, flash floods, coastal flooding, and hurricane-related flooding.

RankCountyTotal EventsRiver FloodsFlash Floods
1Sedgwick County228101127
2Cherokee County15829129
3Leavenworth County1417071
4Butler County1405486
5Shawnee County1152986
6Johnson County1092584
7Crawford County1001585
8Lyon County882761
9Montgomery County863848
10Bourbon County811071
11Anderson County801862
12Jefferson County742153
13Sumner County743440
14Douglas County731459
15McPherson County704723
16Franklin County682246
17Logan County672146
18Cowley County672344
19Osage County662244
20Labette County652738
21Atchison County624418
22Barton County623527
23Marion County622537
24Ford County591841
25Allen County583424
26Saline County573225
27Reno County563224
28Sherman County561343
29Miami County552827
30Dickinson County541737
31Linn County543618
32Wilson County542133
33Greenwood County532726
34Wyandotte County532132
35Neosho County492524
36Riley County49643
37Ellis County482127
38Ottawa County471928
39Coffey County461333
40Morris County451332
41Wabaunsee County451035
42Rice County412516
43Gove County411130
44Marshall County41734
45Cheyenne County40337
46Harper County391623
47Clay County38731
48Geary County38632
49Elk County371324
50Nemaha County37730
51Harvey County372017
52Pottawatomie County36828
53Thomas County361125
54Chautauqua County341519
55Ellsworth County331419
56Brown County33726
57Jackson County331023
58Kingman County311912
59Rawlins County30822
60Russell County301614
61Woodson County28523
62Graham County27522
63Lincoln County271215
64Rush County26818
65Republic County25124
66Chase County251213
67Barber County23149
68Pratt County23815
69Rooks County23320
70Cloud County23716
71Doniphan County21813
72Stanton County21813
73Wallace County21417
74Comanche County201010
75Osborne County20713
76Pawnee County20164
77Greeley County19613
78Phillips County19514
79Mitchell County19415
80Washington County18513
81Decatur County17512
82Hodgeman County16115
83Meade County16214
84Ness County16610
85Wichita County16313
86Smith County16610
87Finney County15411
88Norton County1569
89Kearny County14410
90Stafford County1486
91Gray County1358
92Seward County13310
93Trego County1358
94Grant County1266
95Jewell County1239
96Stevens County12111
97Sheridan County11110
98Clark County1055
99Edwards County1082
100Kiowa County1064
101Morton County945
102Hamilton County844
103Haskell County835
104Scott County770
105Lane County761

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

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