Northern Mariana Islands Natural Disaster Risk by County
FEMA National Risk Index rankings for all 3 counties
Northern Mariana Islands spans 3 counties with an average FEMA National Risk Index score of 0.0 (very low risk) and roughly $61M in combined expected annual loss statewide. No county in the state reaches the High risk band.
The highest-risk county is Rota Municipality (score 0.0, very low), while Tinian Municipality (score 0.0) carries the lowest. Use the table below to compare every county by score, top hazard, and expected annual loss.
County Rankings
| # | County | Risk Score | Risk Rating | Top Hazard | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Rota Municipality | Very Low | Avalanche | $3M | |
| 2 | Saipan Municipality | Very Low | Avalanche | $56M | |
| 3 | Tinian Municipality | Very Low | Avalanche | $2M |
All 3 Northern Mariana Islands counties, ranked by FEMA National Risk Index score.
Frequently Asked Questions
Which Northern Mariana Islands county has the highest natural disaster risk?
Rota Municipality has the highest FEMA National Risk Index score in Northern Mariana Islands at 0.0 (Very Low), driven largely by avalanche.
What is the average natural disaster risk in Northern Mariana Islands?
Northern Mariana Islands counties average a National Risk Index score of 0.0 across 3 counties, with 0 rated High or Very High risk.
How much are expected annual losses across Northern Mariana Islands?
FEMA estimates roughly $61M in combined expected annual loss from natural hazards across all Northern Mariana Islands counties.