Riverine Flood Risk in Mississippi
All Mississippi counties ranked by FEMA National Risk Index riverine flood score
Riverine Flood risk — rivers and streams overflowing their banks after heavy rain or snowmelt — is rated for 82 of 82 Mississippi counties in FEMA's National Risk Index. Hinds County carries the state's highest riverine flood score at 95.1, with $56M in expected annual riverine flood losses.
1 Mississippi county is rated High or Very High for riverine flood, and expected annual losses from riverine flood total roughly $500M statewide. The full ranking below links to each county's complete 18-hazard risk profile.
County Rankings — Riverine Flood
| # | County | Riverine Flood Score | Rating | Ann. Freq. | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Hinds County | High | 4.46 / yr | $56M | |
| 2 | Harrison County | Medium | 1.75 / yr | $33M | |
| 3 | Jackson County | Medium | 0.96 / yr | $27M | |
| 4 | Washington County | Medium | 1.93 / yr | $13M | |
| 5 | DeSoto County | Medium | 2.29 / yr | $22M | |
| 6 | Lauderdale County | Medium | 2.43 / yr | $14M | |
| 7 | Rankin County | Medium | 3.71 / yr | $21M | |
| 8 | Lowndes County | Medium | 1.68 / yr | $14M | |
| 9 | Bolivar County | Medium | 1.71 / yr | $10M | |
| 10 | Madison County | Medium | 2.54 / yr | $20M | |
| 11 | Pearl River County | Medium | 0.71 / yr | $11M | |
| 12 | Warren County | Low | 1.82 / yr | $10M | |
| 13 | Lee County | Low | 1.96 / yr | $12M | |
| 14 | Jones County | Low | 3.14 / yr | $10M | |
| 15 | Leflore County | Low | 1.21 / yr | $8M | |
| 16 | Forrest County | Low | 3.61 / yr | $11M | |
| 17 | Hancock County | Low | 0.71 / yr | $9M | |
| 18 | Pike County | Low | 0.46 / yr | $7M | |
| 19 | Lamar County | Low | 2.54 / yr | $9M | |
| 20 | Marshall County | Low | 0.75 / yr | $6M | |
| 21 | Adams County | Low | 1.36 / yr | $6M | |
| 22 | Grenada County | Low | 2.00 / yr | $6M | |
| 23 | Sunflower County | Low | 1.29 / yr | $5M | |
| 24 | Oktibbeha County | Low | 1.32 / yr | $6M | |
| 25 | Monroe County | Low | 0.89 / yr | $5M | |
| 26 | Alcorn County | Low | 1.39 / yr | $5M | |
| 27 | Simpson County | Low | 1.00 / yr | $5M | |
| 28 | Yazoo County | Low | 1.64 / yr | $4M | |
| 29 | Marion County | Low | 2.11 / yr | $5M | |
| 30 | Lafayette County | Low | 1.00 / yr | $7M | |
| 31 | Copiah County | Low | 1.04 / yr | $4M | |
| 32 | Coahoma County | Low | 0.82 / yr | $4M | |
| 33 | Amite County | Low | 0.29 / yr | $3M | |
| 34 | Leake County | Low | 0.86 / yr | $3M | |
| 35 | Panola County | Low | 1.11 / yr | $3M | |
| 36 | Wayne County | Low | 0.71 / yr | $4M | |
| 37 | Lincoln County | Low | 1.29 / yr | $4M | |
| 38 | Covington County | Low | 1.25 / yr | $3M | |
| 39 | Scott County | Low | 1.14 / yr | $3M | |
| 40 | Neshoba County | Low | 1.25 / yr | $4M | |
| 41 | Smith County | Low | 1.07 / yr | $3M | |
| 42 | Prentiss County | Low | 0.89 / yr | $4M | |
| 43 | Greene County | Low | 0.82 / yr | $3M | |
| 44 | Union County | Low | 0.96 / yr | $3M | |
| 45 | Clarke County | Low | 1.32 / yr | $3M | |
| 46 | Newton County | Low | 1.36 / yr | $3M | |
| 47 | Pontotoc County | Low | 0.89 / yr | $3M | |
| 48 | Clay County | Very Low | 0.68 / yr | $3M | |
| 49 | Wilkinson County | Very Low | 0.36 / yr | $2M | |
| 50 | Holmes County | Very Low | 0.79 / yr | $2M | |
| 51 | George County | Very Low | 0.96 / yr | $4M | |
| 52 | Tishomingo County | Very Low | 0.57 / yr | $3M | |
| 53 | Tallahatchie County | Very Low | 0.57 / yr | $2M | |
| 54 | Lawrence County | Very Low | 1.00 / yr | $3M | |
| 55 | Itawamba County | Very Low | 0.50 / yr | $2M | |
| 56 | Attala County | Very Low | 0.93 / yr | $2M | |
| 57 | Jasper County | Very Low | 1.04 / yr | $2M | |
| 58 | Stone County | Very Low | 1.21 / yr | $2M | |
| 59 | Chickasaw County | Very Low | 0.46 / yr | $2M | |
| 60 | Tate County | Very Low | 0.93 / yr | $3M | |
| 61 | Walthall County | Very Low | 0.25 / yr | $3M | |
| 62 | Tippah County | Very Low | 0.71 / yr | $2M | |
| 63 | Claiborne County | Very Low | 0.64 / yr | $2M | |
| 64 | Calhoun County | Very Low | 0.82 / yr | $2M | |
| 65 | Tunica County | Very Low | 0.50 / yr | $2M | |
| 66 | Jefferson Davis County | Very Low | 1.00 / yr | $2M | |
| 67 | Perry County | Very Low | 0.93 / yr | $2M | |
| 68 | Franklin County | Very Low | 0.89 / yr | $2M | |
| 69 | Noxubee County | Very Low | 0.71 / yr | $2M | |
| 70 | Humphreys County | Very Low | 0.71 / yr | $2M | |
| 71 | Winston County | Very Low | 1.14 / yr | $2M | |
| 72 | Carroll County | Very Low | 0.86 / yr | $2M | |
| 73 | Yalobusha County | Very Low | 0.39 / yr | $2M | |
| 74 | Jefferson County | Very Low | 0.57 / yr | $1M | |
| 75 | Quitman County | Very Low | 0.25 / yr | $1M | |
| 76 | Montgomery County | Very Low | 0.89 / yr | $1M | |
| 77 | Benton County | Very Low | 0.21 / yr | $1M | |
| 78 | Webster County | Very Low | 0.71 / yr | $1M | |
| 79 | Sharkey County | Very Low | 0.64 / yr | $958K | |
| 80 | Issaquena County | Very Low | 0.32 / yr | $925K | |
| 81 | Choctaw County | Very Low | 0.75 / yr | $975K | |
| 82 | Kemper County | Very Low | 0.57 / yr | $864K |
82 Mississippi counties with measurable riverine flood risk. See the national riverine flood ranking or all Mississippi counties by overall risk.
Frequently Asked Questions
Which Mississippi county has the highest riverine flood risk?
Hinds County has the highest FEMA riverine flood risk score in Mississippi at 95.1 (High), with $56M in expected annual losses and about 4.46 events per year.
How many Mississippi counties face significant riverine flood risk?
82 Mississippi counties record measurable riverine flood risk in FEMA's National Risk Index; 1 of them are rated High or Very High.