Landslide Risk in Ohio
All Ohio counties ranked by FEMA National Risk Index landslide score
Landslide risk — downhill movement of rock, soil, and debris on unstable slopes — is rated for 88 of 88 Ohio counties in FEMA's National Risk Index. Hamilton County carries the state's highest landslide score at 95.4, with $142K in expected annual landslide losses.
No Ohio county reaches the High band for landslide, and expected annual losses from landslide total roughly $1M statewide. The full ranking below links to each county's complete 18-hazard risk profile.
County Rankings — Landslide
| # | County | Landslide Score | Rating | Ann. Freq. | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Hamilton County | Medium | 0.45 / yr | $142K | |
| 2 | Ross County | Medium | 0.54 / yr | $88K | |
| 3 | Licking County | Medium | 0.37 / yr | $82K | |
| 4 | Monroe County | Medium | 1.20 / yr | $44K | |
| 5 | Belmont County | Medium | 1.27 / yr | $44K | |
| 6 | Meigs County | Medium | 1.08 / yr | $34K | |
| 7 | Washington County | Medium | 1.49 / yr | $43K | |
| 8 | Coshocton County | Medium | 0.99 / yr | $28K | |
| 9 | Gallia County | Medium | 1.10 / yr | $31K | |
| 10 | Lawrence County | Medium | 1.16 / yr | $38K | |
| 11 | Vinton County | Low | 0.98 / yr | $29K | |
| 12 | Fairfield County | Low | 0.21 / yr | $48K | |
| 13 | Guernsey County | Low | 1.01 / yr | $30K | |
| 14 | Hocking County | Low | 1.00 / yr | $35K | |
| 15 | Athens County | Low | 1.22 / yr | $32K | |
| 16 | Noble County | Low | 0.95 / yr | $29K | |
| 17 | Jackson County | Low | 0.87 / yr | $24K | |
| 18 | Scioto County | Low | 1.20 / yr | $31K | |
| 19 | Brown County | Low | 0.25 / yr | $26K | |
| 20 | Muskingum County | Low | 1.23 / yr | $28K | |
| 21 | Morgan County | Low | 1.04 / yr | $24K | |
| 22 | Tuscarawas County | Low | 0.90 / yr | $19K | |
| 23 | Harrison County | Low | 0.88 / yr | $19K | |
| 24 | Holmes County | Low | 0.54 / yr | $13K | |
| 25 | Clermont County | Low | 0.26 / yr | $28K | |
| 26 | Jefferson County | Low | 0.90 / yr | $19K | |
| 27 | Carroll County | Low | 0.68 / yr | $14K | |
| 28 | Perry County | Low | 0.68 / yr | $14K | |
| 29 | Pike County | Low | 0.64 / yr | $11K | |
| 30 | Highland County | Low | 0.24 / yr | $10K | |
| 31 | Butler County | Low | 0.19 / yr | $12K | |
| 32 | Columbiana County | Low | 0.52 / yr | $9K | |
| 33 | Warren County | Low | 0.14 / yr | $7K | |
| 34 | Montgomery County | Low | 0.12 / yr | $4K | |
| 35 | Logan County | Low | 0.12 / yr | $4K | |
| 36 | Knox County | Low | 0.28 / yr | $3K | |
| 37 | Franklin County | Low | 0.12 / yr | $4K | |
| 38 | Stark County | Very Low | 0.27 / yr | $3K | |
| 39 | Greene County | Very Low | 0.10 / yr | $3K | |
| 40 | Richland County | Very Low | 0.20 / yr | $2K | |
| 41 | Shelby County | Very Low | 0.09 / yr | $2K | |
| 42 | Preble County | Very Low | 0.11 / yr | $2K | |
| 43 | Summit County | Very Low | 0.17 / yr | $2K | |
| 44 | Adams County | Very Low | 0.81 / yr | $1K | |
| 45 | Champaign County | Very Low | 0.10 / yr | $2K | |
| 46 | Clinton County | Very Low | 0.08 / yr | $1K | |
| 47 | Clark County | Very Low | 0.08 / yr | $1K | |
| 48 | Ashland County | Very Low | 0.17 / yr | $1K | |
| 49 | Huron County | Very Low | 0.09 / yr | $1K | |
| 50 | Pickaway County | Very Low | 0.10 / yr | $1K | |
| 51 | Morrow County | Very Low | 0.09 / yr | $1K | |
| 52 | Delaware County | Very Low | 0.09 / yr | $2K | |
| 53 | Miami County | Very Low | 0.08 / yr | $1K | |
| 54 | Williams County | Very Low | 0.08 / yr | $652 | |
| 55 | Lorain County | Very Low | 0.09 / yr | $796 | |
| 56 | Defiance County | Very Low | 0.07 / yr | $837 | |
| 57 | Wayne County | Very Low | 0.15 / yr | $618 | |
| 58 | Erie County | Very Low | 0.05 / yr | $614 | |
| 59 | Wyandot County | Very Low | 0.08 / yr | $768 | |
| 60 | Seneca County | Very Low | 0.09 / yr | $615 | |
| 61 | Lucas County | Very Low | 0.06 / yr | $496 | |
| 62 | Paulding County | Very Low | 0.07 / yr | $514 | |
| 63 | Darke County | Very Low | 0.10 / yr | $548 | |
| 64 | Fayette County | Very Low | 0.07 / yr | $515 | |
| 65 | Cuyahoga County | Very Low | 0.14 / yr | $387 | |
| 66 | Geauga County | Very Low | 0.11 / yr | $401 | |
| 67 | Sandusky County | Very Low | 0.06 / yr | $400 | |
| 68 | Auglaize County | Very Low | 0.07 / yr | $396 | |
| 69 | Henry County | Very Low | 0.07 / yr | $425 | |
| 70 | Marion County | Very Low | 0.06 / yr | $303 | |
| 71 | Portage County | Very Low | 0.14 / yr | $389 | |
| 72 | Wood County | Very Low | 0.09 / yr | $534 | |
| 73 | Madison County | Very Low | 0.07 / yr | $405 | |
| 74 | Medina County | Very Low | 0.11 / yr | $385 | |
| 75 | Allen County | Very Low | 0.07 / yr | $297 | |
| 76 | Crawford County | Very Low | 0.06 / yr | $323 | |
| 77 | Mahoning County | Very Low | 0.09 / yr | $215 | |
| 78 | Putnam County | Very Low | 0.07 / yr | $326 | |
| 79 | Hardin County | Very Low | 0.07 / yr | $283 | |
| 80 | Fulton County | Very Low | 0.06 / yr | $235 | |
| 81 | Union County | Very Low | 0.07 / yr | $364 | |
| 82 | Trumbull County | Very Low | 0.10 / yr | $153 | |
| 83 | Hancock County | Very Low | 0.08 / yr | $312 | |
| 84 | Ashtabula County | Very Low | 0.13 / yr | $123 | |
| 85 | Ottawa County | Very Low | 0.04 / yr | $143 | |
| 86 | Mercer County | Very Low | 0.08 / yr | $225 | |
| 87 | Lake County | Very Low | 0.07 / yr | $127 | |
| 88 | Van Wert County | Very Low | 0.06 / yr | $79 |
88 Ohio counties with measurable landslide risk. See the national landslide ranking or all Ohio counties by overall risk.
Frequently Asked Questions
Which Ohio county has the highest landslide risk?
Hamilton County has the highest FEMA landslide risk score in Ohio at 95.4 (Medium), with $142K in expected annual losses and about 0.45 events per year.
How many Ohio counties face significant landslide risk?
88 Ohio counties record measurable landslide risk in FEMA's National Risk Index; 0 of them are rated High or Very High.