Arkansas inland flooding risk
Pulaski County has the highest inland flooding risk in Arkansas, scoring 96.8 out of 100 — rated "Relatively High" by FEMA's National Risk Index. Recorded inland flooding events across Arkansas have decreased 24% over the past five years compared to the prior five-year period.
| # | County | NRI score | Rating |
NOAA events 2016–2026 |
|---|---|---|---|---|
| 1 | Pulaski County | 96.8 | Relatively High | 136 |
| 2 | Benton County | 90.4 | Relatively Moderate | 64 |
| 3 | Garland County | 90.1 | Relatively Moderate | 27 |
| 4 | Washington County | 90.1 | Relatively Moderate | 50 |
| 5 | Sebastian County | 86.1 | Relatively Moderate | 42 |
| 6 | White County | 80.7 | Relatively Moderate | 83 |
| 7 | Craighead County | 78.8 | Relatively Moderate | 32 |
| 8 | Jefferson County | 78.2 | Relatively Moderate | 31 |
| 9 | Faulkner County | 77 | Relatively Moderate | 44 |
| 10 | Pope County | 75.3 | Relatively Moderate | 15 |
| 11 | Saline County | 74.9 | Relatively Moderate | 62 |
| 12 | Cleburne County | 73.3 | Relatively Moderate | 4 |
| 13 | Crittenden County | 72.4 | Relatively Low | 9 |
| 14 | Crawford County | 70.6 | Relatively Low | 39 |
| 15 | Lonoke County | 69.3 | Relatively Low | 38 |
| 16 | Sharp County | 66.3 | Relatively Low | 32 |
| 17 | Carroll County | 65.1 | Relatively Low | 4 |
| 18 | Yell County | 64.9 | Relatively Low | 59 |
| 19 | Baxter County | 64.4 | Relatively Low | 4 |
| 20 | Greene County | 63.2 | Relatively Low | 15 |
| 21 | Mississippi County | 63 | Relatively Low | 15 |
| 22 | Johnson County | 62 | Relatively Low | 15 |
| 23 | Hot Spring County | 58.6 | Relatively Low | 15 |
| 24 | Arkansas County | 58.4 | Relatively Low | 31 |
| 25 | Miller County | 57.3 | Relatively Low | 17 |
| 26 | Logan County | 56.9 | Relatively Low | 10 |
| 27 | Independence County | 56.5 | Relatively Low | 23 |
| 28 | Ashley County | 54 | Relatively Low | 37 |
| 29 | Madison County | 53.9 | Relatively Low | 12 |
| 30 | Polk County | 53.4 | Relatively Low | 17 |
| 31 | Ouachita County | 53.1 | Relatively Low | 75 |
| 32 | Lawrence County | 52.5 | Relatively Low | 87 |
| 33 | Howard County | 52.1 | Relatively Low | 23 |
| 34 | Boone County | 51.2 | Relatively Low | 9 |
| 35 | Union County | 51.2 | Relatively Low | 30 |
| 36 | Franklin County | 50.9 | Relatively Low | 24 |
| 37 | Chicot County | 49.4 | Relatively Low | 46 |
| 38 | Montgomery County | 48.7 | Relatively Low | 29 |
| 39 | Sevier County | 48.2 | Relatively Low | 9 |
| 40 | Izard County | 48.1 | Relatively Low | 5 |
| 41 | Van Buren County | 47.9 | Relatively Low | 15 |
| 42 | Stone County | 47.4 | Relatively Low | 6 |
| 43 | Phillips County | 46.2 | Relatively Low | 6 |
| 44 | Fulton County | 45.6 | Relatively Low | 10 |
| 45 | Randolph County | 45.5 | Relatively Low | 67 |
| 46 | Conway County | 45.4 | Relatively Low | 25 |
| 47 | Scott County | 45 | Relatively Low | 24 |
| 48 | Little River County | 44.1 | Relatively Low | 12 |
| 49 | Hempstead County | 43.9 | Relatively Low | 30 |
| 50 | Jackson County | 43.9 | Relatively Low | 30 |
| 51 | Prairie County | 43.2 | Relatively Low | 46 |
| 52 | Marion County | 43.1 | Relatively Low | 14 |
| 53 | St. Francis County | 41.2 | Relatively Low | 6 |
| 54 | Clay County | 40 | Relatively Low | 7 |
| 55 | Pike County | 39.9 | Relatively Low | 11 |
| 56 | Cross County | 39.3 | Relatively Low | 3 |
| 57 | Perry County | 38.5 | Relatively Low | 60 |
| 58 | Clark County | 38.1 | Relatively Low | 65 |
| 59 | Poinsett County | 37.3 | Relatively Low | 6 |
| 60 | Woodruff County | 34.5 | Very Low | 226 |
| 61 | Desha County | 33.4 | Very Low | 20 |
| 62 | Monroe County | 28.4 | Very Low | 54 |
| 63 | Columbia County | 24.6 | Very Low | 19 |
| 64 | Bradley County | 24.5 | Very Low | 12 |
| 65 | Lincoln County | 24.4 | Very Low | 14 |
| 66 | Nevada County | 24 | Very Low | 17 |
| 67 | Newton County | 21.3 | Very Low | 8 |
| 68 | Lee County | 21.2 | Very Low | 8 |
| 69 | Searcy County | 21 | Very Low | 9 |
| 70 | Drew County | 19 | Very Low | 17 |
| 71 | Dallas County | 17.7 | Very Low | 5 |
| 72 | Lafayette County | 16.9 | Very Low | 33 |
| 73 | Grant County | 16.7 | Very Low | 18 |
| 74 | Cleveland County | 13.9 | Very Low | 7 |
| 75 | Calhoun County | 6.9 | Very Low | 42 |
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 Arkansas:
Frequently asked questions
What is the highest inland flooding risk county in Arkansas?
Pulaski County, AR has the highest inland flooding risk in Arkansas, with a FEMA National Risk Index score of 96.8 out of 100 (rated "Relatively High").
What causes inland flooding risk in Arkansas?
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.