Landslide Risk in New Jersey
All New Jersey counties ranked by FEMA National Risk Index landslide score
Landslide risk — downhill movement of rock, soil, and debris on unstable slopes — is rated for 21 of 21 New Jersey counties in FEMA's National Risk Index. Sussex County carries the state's highest landslide score at 86.5, with $58K in expected annual landslide losses.
No New Jersey county reaches the High band for landslide, and expected annual losses from landslide total roughly $117K 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 | Sussex County | Low | 0.75 / yr | $58K | |
| 2 | Warren County | Low | 0.34 / yr | $16K | |
| 3 | Morris County | Low | 0.42 / yr | $14K | |
| 4 | Middlesex County | Low | 0.10 / yr | $8K | |
| 5 | Passaic County | Low | 0.28 / yr | $4K | |
| 6 | Burlington County | Very Low | 0.16 / yr | $4K | |
| 7 | Bergen County | Very Low | 0.14 / yr | $3K | |
| 8 | Ocean County | Very Low | 0.11 / yr | $2K | |
| 9 | Camden County | Very Low | 0.06 / yr | $2K | |
| 10 | Mercer County | Very Low | 0.07 / yr | $2K | |
| 11 | Essex County | Very Low | 0.08 / yr | $988 | |
| 12 | Hunterdon County | Very Low | 0.25 / yr | $2K | |
| 13 | Gloucester County | Very Low | 0.08 / yr | $1K | |
| 14 | Atlantic County | Very Low | 0.08 / yr | $539 | |
| 15 | Monmouth County | Very Low | 0.14 / yr | $535 | |
| 16 | Cumberland County | Very Low | 0.07 / yr | $240 | |
| 17 | Union County | Very Low | 0.04 / yr | $215 | |
| 18 | Hudson County | Very Low | 0.02 / yr | $136 | |
| 19 | Somerset County | Very Low | 0.14 / yr | $273 | |
| 20 | Salem County | Very Low | 0.06 / yr | $136 | |
| 21 | Cape May County | Very Low | 0.03 / yr | $71 |
21 New Jersey counties with measurable landslide risk. See the national landslide ranking or all New Jersey counties by overall risk.
Frequently Asked Questions
Which New Jersey county has the highest landslide risk?
Sussex County has the highest FEMA landslide risk score in New Jersey at 86.5 (Low), with $58K in expected annual losses and about 0.75 events per year.
How many New Jersey counties face significant landslide risk?
21 New Jersey counties record measurable landslide risk in FEMA's National Risk Index; 0 of them are rated High or Very High.