Alaska natural disaster risk
Ratings for all 30 boroughs and census areas, the federal disaster record and flood insurance across the state.
Alaska has had 62 major federal disaster declarations for natural events since 1953. FEMA expects about $941 million a year in losses from natural hazards across the state. Earthquake is the costliest hazard in 10 of its 30 boroughs and census areas, followed by cold wave in 8. None is rated Very High overall. About 1% of homes carry federal flood insurance, and the program has paid $16.1 million on 768 claims here since 1978.
Highest overall risk
Lowest risk (50,000+ people)
Top hazards
Recent federal declarations
All states ›Largest boroughs and census areas
Anchorage Municipality
290,985 people
EarthquakeMatanuska-Susitna Borough
107,000 people
EarthquakeFairbanks North Star Borough
95,579 people
EarthquakeKenai Peninsula Borough
58,731 people
EarthquakeJuneau City and Borough
32,108 people
EarthquakeBethel Census Area
18,633 people
Cold waveKetchikan Gateway Borough
13,937 people
Inland floodingKodiak Island Borough
13,076 people
EarthquakeNorth Slope Borough
10,651 people
Cold waveNome Census Area
10,031 people
Cold waveSitka City and Borough
8,434 people
EarthquakeKusilvak Census Area
8,356 people
Cold waveCities in Alaska
All 3 cities ›All 30 boroughs and census areas
Linked names have a full page. Overall risk from the FEMA National Risk Index (December 2025); declarations are federal disaster and emergency declarations for natural events since 1953 (OpenFEMA); homes insured is the share with NFIP flood policies.