Landslide Risk in Maine
All Maine counties ranked by FEMA National Risk Index landslide score
Landslide risk — downhill movement of rock, soil, and debris on unstable slopes — is rated for 16 of 16 Maine counties in FEMA's National Risk Index. Knox County carries the state's highest landslide score at 85.7, with $41K in expected annual landslide losses.
No Maine county reaches the High band for landslide, and expected annual losses from landslide total roughly $141K 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 | Knox County | Low | 0.09 / yr | $41K | |
| 2 | Oxford County | Low | 2.79 / yr | $21K | |
| 3 | Aroostook County | Low | 2.32 / yr | $13K | |
| 4 | Franklin County | Low | 1.91 / yr | $10K | |
| 5 | Somerset County | Low | 2.14 / yr | $10K | |
| 6 | Kennebec County | Low | 0.59 / yr | $8K | |
| 7 | Penobscot County | Low | 0.97 / yr | $6K | |
| 8 | York County | Low | 0.52 / yr | $5K | |
| 9 | Hancock County | Low | 0.54 / yr | $5K | |
| 10 | Piscataquis County | Low | 1.84 / yr | $3K | |
| 11 | Cumberland County | Low | 0.42 / yr | $6K | |
| 12 | Washington County | Very Low | 0.72 / yr | $2K | |
| 13 | Androscoggin County | Very Low | 0.32 / yr | $3K | |
| 14 | Waldo County | Very Low | 0.43 / yr | $3K | |
| 15 | Lincoln County | Very Low | 0.25 / yr | $2K | |
| 16 | Sagadahoc County | Very Low | 0.15 / yr | $1K |
16 Maine counties with measurable landslide risk. See the national landslide ranking or all Maine counties by overall risk.
Frequently Asked Questions
Which Maine county has the highest landslide risk?
Knox County has the highest FEMA landslide risk score in Maine at 85.7 (Low), with $41K in expected annual losses and about 0.09 events per year.
How many Maine counties face significant landslide risk?
16 Maine counties record measurable landslide risk in FEMA's National Risk Index; 0 of them are rated High or Very High.