Pennsylvania landslide risk
Indiana County has the highest landslide risk in Pennsylvania, scoring 98 out of 100 — rated "Relatively High" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
NOAA events 2016–2026 |
|---|---|---|---|---|
| 1 | Indiana County | 98 | Relatively High | 0 |
| 2 | Washington County | 94.1 | Relatively Moderate | 1 |
| 3 | Bedford County | 92.2 | Relatively Moderate | 0 |
| 4 | Berks County | 91.6 | Relatively Moderate | 0 |
| 5 | Westmoreland County | 91.3 | Relatively Moderate | 0 |
| 6 | Greene County | 91.2 | Relatively Moderate | 1 |
| 7 | Schuylkill County | 90.1 | Relatively Moderate | 0 |
| 8 | Huntingdon County | 88.8 | Relatively Moderate | 0 |
| 9 | Centre County | 87.7 | Relatively Moderate | 0 |
| 10 | Allegheny County | 87.2 | Relatively Low | 1 |
| 11 | Fayette County | 87.1 | Relatively Low | 0 |
| 12 | Blair County | 85.9 | Relatively Low | 0 |
| 13 | Armstrong County | 85.3 | Relatively Low | 0 |
| 14 | Dauphin County | 84.6 | Relatively Low | 0 |
| 15 | Perry County | 84.2 | Relatively Low | 0 |
| 16 | Butler County | 83.9 | Relatively Low | 1 |
| 17 | Fulton County | 83.8 | Relatively Low | 0 |
| 18 | Potter County | 83.4 | Relatively Low | 0 |
| 19 | Lycoming County | 83.1 | Relatively Low | 0 |
| 20 | Northumberland County | 82.8 | Relatively Low | 0 |
| 21 | Tioga County | 82 | Relatively Low | 0 |
| 22 | Beaver County | 81.7 | Relatively Low | 0 |
| 23 | Bradford County | 81.4 | Relatively Low | 0 |
| 24 | Somerset County | 81.4 | Relatively Low | 0 |
| 25 | Clearfield County | 81.3 | Relatively Low | 0 |
| 26 | Susquehanna County | 81.2 | Relatively Low | 0 |
| 27 | Cambria County | 80.6 | Relatively Low | 0 |
| 28 | Columbia County | 80.4 | Relatively Low | 0 |
| 29 | Clinton County | 80.3 | Relatively Low | 0 |
| 30 | Mifflin County | 80.2 | Relatively Low | 0 |
| 31 | Jefferson County | 79.9 | Relatively Low | 0 |
| 32 | Lehigh County | 79.5 | Relatively Low | 0 |
| 33 | Juniata County | 79.2 | Relatively Low | 0 |
| 34 | York County | 78.9 | Relatively Low | 0 |
| 35 | Chester County | 77.8 | Relatively Low | 0 |
| 36 | Snyder County | 77.7 | Relatively Low | 0 |
| 37 | McKean County | 77.4 | Relatively Low | 0 |
| 38 | Luzerne County | 77.2 | Relatively Low | 0 |
| 39 | Cameron County | 77 | Relatively Low | 0 |
| 40 | Northampton County | 76.5 | Relatively Low | 0 |
| 41 | Philadelphia County | 76.3 | Relatively Low | 0 |
| 42 | Franklin County | 75.4 | Relatively Low | 0 |
| 43 | Cumberland County | 74.8 | Relatively Low | 0 |
| 44 | Wayne County | 74.3 | Relatively Low | 0 |
| 45 | Lancaster County | 73.3 | Relatively Low | 0 |
| 46 | Lackawanna County | 73.1 | Relatively Low | 0 |
| 47 | Wyoming County | 72.8 | Relatively Low | 0 |
| 48 | Carbon County | 71 | Relatively Low | 0 |
| 49 | Monroe County | 70.7 | Relatively Low | 0 |
| 50 | Clarion County | 70.2 | Relatively Low | 0 |
| 51 | Elk County | 70.2 | Relatively Low | 0 |
| 52 | Warren County | 70.1 | Relatively Low | 0 |
| 53 | Montgomery County | 68.3 | Relatively Low | 0 |
| 54 | Venango County | 67.7 | Relatively Low | 0 |
| 55 | Pike County | 67.6 | Relatively Low | 0 |
| 56 | Union County | 64.6 | Relatively Low | 0 |
| 57 | Sullivan County | 64.3 | Relatively Low | 0 |
| 58 | Lawrence County | 63.6 | Relatively Low | 0 |
| 59 | Lebanon County | 63.5 | Relatively Low | 0 |
| 60 | Forest County | 60.8 | Very Low | 0 |
| 61 | Delaware County | 59.4 | Very Low | 0 |
| 62 | Montour County | 57.4 | Very Low | 0 |
| 63 | Bucks County | 56.5 | Very Low | 0 |
| 64 | Crawford County | 55.9 | Very Low | 0 |
| 65 | Erie County | 44.8 | Very Low | 0 |
| 66 | Mercer County | 43.1 | Very Low | 0 |
| 67 | Adams County | 39.4 | 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.
Landslide risk nationally:
Other hazard risks in Pennsylvania:
Frequently asked questions
What is the highest landslide risk county in Pennsylvania?
Indiana County, PA has the highest landslide risk in Pennsylvania, with a FEMA National Risk Index score of 98 out of 100 (rated "Relatively High").
What causes landslide risk in Pennsylvania?
Landslide risk covers expected losses from hillslope failures, rockfalls, and debris flows triggered by heavy rainfall, snowmelt, wildfire, or earthquakes. High scores concentrate in the Pacific Northwest, California coastal ranges, Appalachians, and Rocky Mountain foothills, where steep terrain combines with intense precipitation or seismic activity.