Nebraska inland flooding risk
Douglas County has the highest inland flooding risk in Nebraska, scoring 95.1 out of 100 — rated "Relatively High" by FEMA's National Risk Index. Recorded inland flooding events across Nebraska have decreased 52% over the past five years compared to the prior five-year period.
| # | County | NRI score | Rating |
NOAA events 2016–2026 |
|---|---|---|---|---|
| 1 | Douglas County | 95.1 | Relatively High | 58 |
| 2 | Lancaster County | 85.5 | Relatively Moderate | 25 |
| 3 | Sarpy County | 73.6 | Relatively Moderate | 18 |
| 4 | Hall County | 70.1 | Relatively Low | 9 |
| 5 | Dodge County | 67.3 | Relatively Low | 31 |
| 6 | Madison County | 62.8 | Relatively Low | 5 |
| 7 | Platte County | 60.7 | Relatively Low | 21 |
| 8 | Buffalo County | 50.8 | Relatively Low | 10 |
| 9 | Cuming County | 49.2 | Relatively Low | 9 |
| 10 | Lincoln County | 48.5 | Relatively Low | 16 |
| 11 | Scotts Bluff County | 48 | Relatively Low | 17 |
| 12 | Dawson County | 43.6 | Relatively Low | 7 |
| 13 | Custer County | 43.5 | Relatively Low | 43 |
| 14 | Saline County | 38.6 | Relatively Low | 13 |
| 15 | Merrick County | 37.2 | Relatively Low | 4 |
| 16 | Cass County | 37 | Relatively Low | 21 |
| 17 | Dakota County | 33.8 | Very Low | 15 |
| 18 | Adams County | 32.8 | Very Low | 9 |
| 19 | Saunders County | 32.5 | Very Low | 21 |
| 20 | Gage County | 32.4 | Very Low | 12 |
| 21 | Boone County | 32 | Very Low | 5 |
| 22 | Colfax County | 31.8 | Very Low | 11 |
| 23 | Knox County | 31.3 | Very Low | 8 |
| 24 | Cheyenne County | 27.7 | Very Low | 18 |
| 25 | Washington County | 27.1 | Very Low | 8 |
| 26 | Stanton County | 25.2 | Very Low | 7 |
| 27 | Jefferson County | 25 | Very Low | 7 |
| 28 | York County | 25 | Very Low | 2 |
| 29 | Cedar County | 24.9 | Very Low | 5 |
| 30 | Seward County | 23 | Very Low | 8 |
| 31 | Thayer County | 22.2 | Very Low | 9 |
| 32 | Otoe County | 21.1 | Very Low | 12 |
| 33 | Butler County | 20.9 | Very Low | 11 |
| 34 | Pierce County | 20.5 | Very Low | 6 |
| 35 | Thurston County | 19 | Very Low | 5 |
| 36 | Burt County | 18.8 | Very Low | 8 |
| 37 | Furnas County | 18.8 | Very Low | 2 |
| 38 | Webster County | 18.6 | Very Low | 5 |
| 39 | Phelps County | 17 | Very Low | 3 |
| 40 | Hamilton County | 16.9 | Very Low | 4 |
| 41 | Richardson County | 16.7 | Very Low | 12 |
| 42 | Wayne County | 16.5 | Very Low | 7 |
| 43 | Polk County | 16.4 | Very Low | 4 |
| 44 | Morrill County | 16.3 | Very Low | 6 |
| 45 | Nemaha County | 15.7 | Very Low | 11 |
| 46 | Keith County | 15.3 | Very Low | 6 |
| 47 | Clay County | 15.2 | Very Low | 3 |
| 48 | Cherry County | 15 | Very Low | 8 |
| 49 | Howard County | 14.7 | Very Low | 8 |
| 50 | Nance County | 14.1 | Very Low | 4 |
| 51 | Dixon County | 12.5 | Very Low | 18 |
| 52 | Valley County | 12.1 | Very Low | 5 |
| 53 | Antelope County | 11.4 | Very Low | 8 |
| 54 | Red Willow County | 10.9 | Very Low | 7 |
| 55 | Holt County | 10.8 | Very Low | 10 |
| 56 | Nuckolls County | 10.6 | Very Low | 5 |
| 57 | Kearney County | 10.3 | Very Low | 2 |
| 58 | Sheridan County | 9.9 | Very Low | 4 |
| 59 | Franklin County | 9.5 | Very Low | 2 |
| 60 | Sherman County | 9.4 | Very Low | 11 |
| 61 | Harlan County | 9.3 | Very Low | 5 |
| 62 | Johnson County | 9 | Very Low | 2 |
| 63 | Fillmore County | 8.4 | Very Low | 3 |
| 64 | Pawnee County | 7.6 | Very Low | 2 |
| 65 | Frontier County | 7.4 | Very Low | 7 |
| 66 | Kimball County | 7.3 | Very Low | 5 |
| 67 | Dawes County | 6.1 | Very Low | 2 |
| 68 | Boyd County | 6 | Very Low | 10 |
| 69 | Box Butte County | 5.9 | Very Low | 2 |
| 70 | Greeley County | 5.8 | Very Low | 2 |
| 71 | Hitchcock County | 5.7 | Very Low | 10 |
| 72 | Garfield County | 4.2 | Very Low | 6 |
| 73 | Chase County | 3.7 | Very Low | 5 |
| 74 | Deuel County | 3.5 | Very Low | 1 |
| 75 | Garden County | 2.8 | Very Low | 4 |
| 76 | Wheeler County | 2.4 | Very Low | 1 |
| 77 | Brown County | 2.3 | Very Low | 7 |
| 78 | Perkins County | 2.3 | Very Low | 1 |
| 79 | Keya Paha County | 2.2 | Very Low | 3 |
| 80 | Gosper County | 2.1 | Very Low | 3 |
| 81 | Dundy County | 2 | Very Low | 10 |
| 82 | Sioux County | 1.7 | Very Low | 1 |
| 83 | Blaine County | 1.6 | Very Low | 1 |
| 84 | Hayes County | 1.4 | Very Low | 9 |
| 85 | Hooker County | 1.2 | Very Low | 0 |
| 86 | Rock County | 1.1 | Very Low | 4 |
| 87 | Thomas County | 1 | Very Low | 2 |
| 88 | Banner County | 0.9 | Very Low | 3 |
| 89 | Loup County | 0.7 | Very Low | 1 |
| 90 | Grant County | 0.6 | Very Low | 0 |
| 91 | Arthur County | 0.5 | Very Low | 0 |
| 92 | Logan County | 0.5 | Very Low | 3 |
| 93 | McPherson County | 0.3 | Very Low | 0 |
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 Nebraska:
Frequently asked questions
What is the highest inland flooding risk county in Nebraska?
Douglas County, NE has the highest inland flooding risk in Nebraska, with a FEMA National Risk Index score of 95.1 out of 100 (rated "Relatively High").
What causes inland flooding risk in Nebraska?
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.