Natural Hazard Risk in Ohio
The risk score (0–100) combines expected annual loss from 18 natural hazards with social vulnerability and community resilience. Higher = greater relative risk. Scores compare counties across the United States.
See what's happening right now on the live map →| County | Risk score | Rating | Expected annual loss | Population |
|---|---|---|---|---|
| Franklin | 98.1 | Relatively High | $331.4M | 1,323,446 |
| Cuyahoga | 98 | Relatively High | $282.4M | 1,264,334 |
| Hamilton | 96.3 | Relatively High | $221.2M | 830,623 |
| Montgomery | 92.7 | Relatively Moderate | $119.2M | 537,193 |
| Lucas | 92.4 | Relatively Moderate | $111.3M | 431,225 |
| Butler | 91.5 | Relatively Moderate | $119.7M | 390,244 |
| Summit | 91.2 | Relatively Moderate | $102.2M | 540,333 |
| Stark | 87.9 | Relatively Moderate | $76.6M | 374,812 |
| Lorain | 86.3 | Relatively Moderate | $65.9M | 312,902 |
| Trumbull | 84.5 | Relatively Moderate | $43.9M | 201,961 |
| Mahoning | 83.6 | Relatively Moderate | $42.5M | 228,579 |
| Licking | 78.9 | Relatively Low | $47.7M | 178,382 |
| Delaware | 78.8 | Relatively Low | $69.4M | 213,208 |
| Clermont | 77.9 | Relatively Low | $46.5M | 208,527 |
| Warren | 77.8 | Relatively Low | $61.8M | 242,269 |
| Lake | 77.4 | Relatively Low | $41.9M | 232,492 |
| Clark | 77.1 | Relatively Low | $32.7M | 135,980 |
| Greene | 75.7 | Relatively Low | $41.6M | 167,939 |
| Belmont | 75.2 | Relatively Low | $29.2M | 66,461 |
| Allen | 73.3 | Relatively Low | $31.9M | 102,191 |
| Fairfield | 72.6 | Relatively Low | $39M | 158,878 |
| Lawrence | 71 | Relatively Low | $27.4M | 58,183 |
| Muskingum | 70.9 | Relatively Low | $29.4M | 86,374 |
| Scioto | 70.2 | Relatively Low | $26.6M | 73,911 |
| Columbiana | 69.1 | Relatively Low | $25.1M | 101,872 |
| Tuscarawas | 69 | Relatively Low | $21.5M | 93,231 |
| Medina | 69 | Relatively Low | $35M | 182,378 |
| Athens | 68.7 | Relatively Low | $25.5M | 62,393 |
| Jefferson | 66.7 | Relatively Low | $22.4M | 65,187 |
| Wood | 65.7 | Relatively Low | $43.3M | 132,182 |
| Portage | 65.1 | Relatively Low | $28.9M | 161,780 |
| Wayne | 64.9 | Relatively Low | $22.2M | 116,847 |
| Washington | 64.4 | Relatively Low | $22.3M | 59,732 |
| Ross | 62.9 | Relatively Low | $21.5M | 77,071 |
| Ashtabula | 62.6 | Relatively Low | $19.5M | 97,518 |
| Brown | 62.6 | Relatively Low | $17.7M | 43,652 |
| Miami | 61.4 | Relatively Low | $29M | 108,774 |
| Erie | 61.4 | Relatively Low | $21.2M | 75,596 |
| Richland | 61.3 | Relatively Low | $22.3M | 124,906 |
| Marion | 61.1 | Relatively Low | $19.7M | 65,349 |
| Knox | 61 | Relatively Low | $18.8M | 62,691 |
| Holmes | 60.4 | Relatively Low | $11.7M | 44,196 |
| Geauga | 60.3 | Relatively Low | $19.8M | 95,397 |
| Ottawa | 59.2 | Relatively Low | $22.1M | 40,343 |
| Sandusky | 56.7 | Relatively Low | $20M | 58,813 |
| Shelby | 56.2 | Relatively Low | $17.5M | 48,215 |
| Hancock | 54.1 | Relatively Low | $30.9M | 74,885 |
| Logan | 53.2 | Relatively Low | $18.8M | 45,835 |
| Meigs | 53 | Relatively Low | $11.6M | 22,183 |
| Darke | 52.7 | Relatively Low | $20.3M | 51,868 |
| Pickaway | 50.9 | Relatively Low | $18.4M | 58,527 |
| Huron | 50.3 | Relatively Low | $16.6M | 58,532 |
| Coshocton | 49.1 | Relatively Low | $10.6M | 36,580 |
| Gallia | 48.3 | Relatively Low | $11.6M | 29,179 |
| Hocking | 47.3 | Relatively Low | $14.1M | 28,040 |
| Seneca | 46.9 | Relatively Low | $16.2M | 55,063 |
| Ashland | 46.3 | Relatively Low | $14.7M | 52,443 |
| Williams | 44.4 | Relatively Low | $12.5M | 37,098 |
| Adams | 43.8 | Relatively Low | $12.8M | 27,463 |
| Preble | 43.3 | Relatively Low | $14.6M | 40,984 |
| Highland | 43.2 | Relatively Low | $13.1M | 43,282 |
| Pike | 43.1 | Relatively Low | $10.6M | 27,037 |
| Defiance | 41.9 | Very Low | $15.7M | 38,229 |
| Auglaize | 41.8 | Very Low | $14.8M | 46,399 |
| Guernsey | 37.5 | Very Low | $9.3M | 38,372 |
| Jackson | 35.8 | Very Low | $8.1M | 32,646 |
| Crawford | 35.2 | Very Low | $12.3M | 42,015 |
| Clinton | 34 | Very Low | $11.6M | 41,956 |
| Henry | 33.8 | Very Low | $13.4M | 27,662 |
| Fulton | 33.6 | Very Low | $12.4M | 42,713 |
| Putnam | 32.9 | Very Low | $13.9M | 34,443 |
| Union | 32.7 | Very Low | $19M | 62,265 |
| Mercer | 31.6 | Very Low | $18M | 42,522 |
| Monroe | 27.3 | Very Low | $6.5M | 13,379 |
| Champaign | 26.7 | Very Low | $10.5M | 38,673 |
| Perry | 26 | Very Low | $8.1M | 35,327 |
| Fayette | 25.9 | Very Low | $9.5M | 28,951 |
| Madison | 24.9 | Very Low | $11.1M | 43,789 |
| Hardin | 24.4 | Very Low | $10.6M | 30,690 |
| Morrow | 24.4 | Very Low | $8.8M | 34,943 |
| Paulding | 21.2 | Very Low | $8.3M | 18,790 |
| Van Wert | 20.1 | Very Low | $8.5M | 28,929 |
| Carroll | 19.9 | Very Low | $6.4M | 26,701 |
| Morgan | 18.2 | Very Low | $6.6M | 13,787 |
| Wyandot | 17.4 | Very Low | $8.5M | 21,893 |
| Noble | 13.5 | Very Low | $4.6M | 14,107 |
| Vinton | 11.8 | Very Low | $3.8M | 12,767 |
| Harrison | 11.4 | Very Low | $4.1M | 14,475 |
🏛️ Federal disaster declarations (last 2 years)
No federal disaster declarations in the last 2 years.
Major disaster (DR) and emergency (EM) declarations unlock federal assistance for the designated areas. Source: FEMA / OpenFEMA.
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Data: FEMA National Risk Index (updated ~annually). AlertAtlas is not an official warning service — always follow local authorities.