Kansas inland flooding risk
Sedgwick County has the highest inland flooding risk in Kansas, scoring 96.1 out of 100 — rated "Relatively High" by FEMA's National Risk Index. Recorded inland flooding events across Kansas have decreased 67% over the past five years compared to the prior five-year period.
| # | County | NRI score | Rating |
NOAA events 2016–2026 |
|---|---|---|---|---|
| 1 | Sedgwick County | 96.1 | Relatively High | 124 |
| 2 | Johnson County | 94.9 | Relatively High | 20 |
| 3 | Shawnee County | 90 | Relatively Moderate | 31 |
| 4 | Wyandotte County | 84.7 | Relatively Moderate | 10 |
| 5 | Douglas County | 72.8 | Relatively Low | 27 |
| 6 | Reno County | 70.9 | Relatively Low | 14 |
| 7 | Montgomery County | 70.5 | Relatively Low | 37 |
| 8 | Crawford County | 68.9 | Relatively Low | 30 |
| 9 | Labette County | 68.7 | Relatively Low | 19 |
| 10 | Butler County | 67.7 | Relatively Low | 46 |
| 11 | Leavenworth County | 61.8 | Relatively Low | 26 |
| 12 | Riley County | 59.9 | Relatively Low | 11 |
| 13 | Saline County | 58.8 | Relatively Low | 28 |
| 14 | Cowley County | 56.3 | Relatively Low | 17 |
| 15 | Cherokee County | 54.8 | Relatively Low | 19 |
| 16 | Lyon County | 49.3 | Relatively Low | 26 |
| 17 | Dickinson County | 48.6 | Relatively Low | 12 |
| 18 | Franklin County | 48 | Relatively Low | 17 |
| 19 | Miami County | 46.9 | Relatively Low | 12 |
| 20 | Sumner County | 46.7 | Relatively Low | 22 |
| 21 | Barton County | 42.7 | Relatively Low | 23 |
| 22 | Coffey County | 41.2 | Relatively Low | 16 |
| 23 | Geary County | 40.8 | Relatively Low | 6 |
| 24 | Bourbon County | 40.1 | Relatively Low | 15 |
| 25 | Neosho County | 39.9 | Relatively Low | 22 |
| 26 | Harvey County | 38.9 | Relatively Low | 16 |
| 27 | Finney County | 37.8 | Relatively Low | 7 |
| 28 | Ford County | 37.5 | Relatively Low | 28 |
| 29 | Marion County | 36 | Relatively Low | 34 |
| 30 | Ellis County | 34.4 | Very Low | 21 |
| 31 | Pottawatomie County | 34 | Very Low | 3 |
| 32 | McPherson County | 33.2 | Very Low | 32 |
| 33 | Jefferson County | 32.6 | Very Low | 26 |
| 34 | Osage County | 30.2 | Very Low | 10 |
| 35 | Marshall County | 29.2 | Very Low | 14 |
| 36 | Morris County | 27.8 | Very Low | 6 |
| 37 | Wabaunsee County | 27.2 | Very Low | 6 |
| 38 | Jackson County | 27 | Very Low | 5 |
| 39 | Greenwood County | 26.6 | Very Low | 17 |
| 40 | Allen County | 26.3 | Very Low | 28 |
| 41 | Wilson County | 25.7 | Very Low | 19 |
| 42 | Ottawa County | 24 | Very Low | 13 |
| 43 | Nemaha County | 23.3 | Very Low | 9 |
| 44 | Linn County | 22.9 | Very Low | 4 |
| 45 | Clay County | 22.4 | Very Low | 10 |
| 46 | Cloud County | 22.3 | Very Low | 3 |
| 47 | Rice County | 22.2 | Very Low | 14 |
| 48 | Atchison County | 21.7 | Very Low | 12 |
| 49 | Mitchell County | 21.2 | Very Low | 2 |
| 50 | Pawnee County | 20.7 | Very Low | 7 |
| 51 | Chase County | 20.3 | Very Low | 5 |
| 52 | Kingman County | 20.1 | Very Low | 15 |
| 53 | Phillips County | 20 | Very Low | 6 |
| 54 | Anderson County | 19.2 | Very Low | 33 |
| 55 | Washington County | 18.9 | Very Low | 3 |
| 56 | Osborne County | 18.5 | Very Low | 7 |
| 57 | Elk County | 17.8 | Very Low | 7 |
| 58 | Brown County | 17.7 | Very Low | 7 |
| 59 | Doniphan County | 16.6 | Very Low | 5 |
| 60 | Harper County | 16.3 | Very Low | 9 |
| 61 | Ellsworth County | 16.1 | Very Low | 16 |
| 62 | Lincoln County | 15.6 | Very Low | 12 |
| 63 | Pratt County | 15.2 | Very Low | 8 |
| 64 | Seward County | 14.8 | Very Low | 4 |
| 65 | Republic County | 14.5 | Very Low | 4 |
| 66 | Ness County | 14.3 | Very Low | 3 |
| 67 | Jewell County | 13.4 | Very Low | 2 |
| 68 | Woodson County | 13.2 | Very Low | 7 |
| 69 | Scott County | 12.1 | Very Low | 0 |
| 70 | Chautauqua County | 11.8 | Very Low | 9 |
| 71 | Barber County | 10.6 | Very Low | 6 |
| 72 | Edwards County | 10.5 | Very Low | 2 |
| 73 | Gray County | 10.2 | Very Low | 3 |
| 74 | Smith County | 10.1 | Very Low | 1 |
| 75 | Russell County | 9.9 | Very Low | 10 |
| 76 | Norton County | 9.7 | Very Low | 6 |
| 77 | Cheyenne County | 8.6 | Very Low | 23 |
| 78 | Sherman County | 7.9 | Very Low | 29 |
| 79 | Stafford County | 7.9 | Very Low | 2 |
| 80 | Decatur County | 7.2 | Very Low | 8 |
| 81 | Rawlins County | 7 | Very Low | 11 |
| 82 | Rush County | 6.3 | Very Low | 7 |
| 83 | Thomas County | 6.3 | Very Low | 24 |
| 84 | Logan County | 6.2 | Very Low | 31 |
| 85 | Gove County | 5.2 | Very Low | 14 |
| 86 | Rooks County | 5.2 | Very Low | 6 |
| 87 | Stevens County | 5.1 | Very Low | 2 |
| 88 | Kiowa County | 4.8 | Very Low | 6 |
| 89 | Graham County | 4.5 | Very Low | 18 |
| 90 | Wichita County | 4.4 | Very Low | 5 |
| 91 | Hodgeman County | 4.3 | Very Low | 3 |
| 92 | Trego County | 3.6 | Very Low | 3 |
| 93 | Wallace County | 3.3 | Very Low | 7 |
| 94 | Kearny County | 3.2 | Very Low | 3 |
| 95 | Grant County | 3.1 | Very Low | 7 |
| 96 | Meade County | 2.9 | Very Low | 2 |
| 97 | Comanche County | 2.8 | Very Low | 8 |
| 98 | Lane County | 2.4 | Very Low | 0 |
| 99 | Sheridan County | 2.2 | Very Low | 5 |
| 100 | Haskell County | 1.8 | Very Low | 4 |
| 101 | Clark County | 1.5 | Very Low | 3 |
| 102 | Hamilton County | 1.4 | Very Low | 1 |
| 103 | Greeley County | 1.2 | Very Low | 9 |
| 104 | Stanton County | 1.2 | Very Low | 7 |
| 105 | Morton County | 0.9 | Very Low | 3 |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.
Inland Flooding risk nationally:
Other hazard risks in Kansas:
Frequently asked questions
What is the highest inland flooding risk county in Kansas?
Sedgwick County, KS has the highest inland flooding risk in Kansas, with a FEMA National Risk Index score of 96.1 out of 100 (rated "Relatively High").
What causes inland flooding risk in Kansas?
Inland flooding covers riverine and surface (pluvial) flooding — the most common and costly natural disaster type in the US. High scores appear across river floodplains in the Midwest, South, and Mid-Atlantic, where legacy development in flood-prone areas and aging stormwater infrastructure concentrate risk.