Kusilvak Census Area, Alaska: Natural Disaster Risk and History
Kusilvak Census Area, Alaska has a Relatively Low natural-hazard risk rating in FEMA's National Risk Index (v1.20, December 2025): a score of 57.9 out of 100, higher than about 57% of US counties, with cold waves, winter storms and landslides scoring highest of its 18 hazards and $11 million a year in expected losses.
OpenFEMA lists 9 federal disaster declarations that included Kusilvak Census Area since 1989, not counting 2 for COVID-19; the latest is DR-4893-AK (Severe Storms, Flooding, and Remnants of Typhoon Halong, declared 22 October 2025). NOAA's Storm Prediction Center has no tornado on record touching Kusilvak Census Area from 1950 to 2025.
Live weather alerts for Alaska All official warnings Latest FEMA declarations
Population 8,356 Buildings worth $969 million Area 19,857 sq mi Risk rank in Alaska 8 of 30 FIPS 02158
All 18 hazards, highest risk first
FEMA National Risk Index| Hazard | Risk rating | Score | Expected loss a year | How often | Events in record |
|---|---|---|---|---|---|
| Cold wave | Relatively High | 97.8 | $11 million | about 3.8 a year | 65 |
| Winter weather | Relatively Moderate | 84.9 | $149,972 | about 28 a year | 484 |
| Landslide | Relatively Low | 82.7 | $12,534 | about once every 15 years | — |
| Wildfire | Very Low | 46.9 | $21,381 | rarer than once in 1,000 years | — |
| Volcanic activity | Very Low | 34.5 | $2 | rarer than once in 1,000 years | 2 |
| Earthquake | Very Low | 24.6 | $23,629 | about once every 368 years | — |
| Avalanche | Very Low | 17.5 | $14 | about once every 100 years | 0 |
| Ice storm | Very Low | 5.6 | $1,443 | about once every 67 years | 0 |
| Lightning | Very Low | 5.5 | $9,592 | about 15 a year | 14,178 strikes |
| Tornado | Very Low | 0.9 | $36 | about once every 106 years | 0 |
| Strong wind | Very Low | 0.8 | — | rarer than once in 1,000 years | 1 |
| Hail | Very Low | 0.6 | — | rarer than once in 1,000 years | 0 |
| Coastal flooding | No Rating | 0.0 | — | — | — |
| Drought | No Rating | 0.0 | — | — | 0 |
| Inland flooding | No Rating | 0.0 | — | — | 0 |
| Heat wave | Insufficient Data | — | — | — | — |
| Hurricane | Not Applicable | — | — | — | — |
| Tsunami | Insufficient Data | — | — | — | — |
Score: FEMA's percentile among US counties that face the hazard (higher = more risk). Expected loss: FEMA's modelled average yearly loss to buildings, people (as a statistical value) and crops. How often: FEMA's annualised frequency of the hazard in the county; for some hazards it counts event-days, so it is a rough guide, not a forecast. "Not Applicable" means FEMA does not model that hazard here.
Federal disaster declarations 9
Most common: Flood 4, Severe Storm 4, Freezing 1.
| Decade | Declarations | Incident types |
|---|---|---|
| 1980s | 2 | Flood, Freezing |
| 2000s | 4 | Severe Storm ×3, Flood |
| 2020s | 3 | Flood ×2, Severe Storm |
The last 9
Widest declarations that included Kusilvak Census Area
- Severe Winter Storms and Avalanches (2000, DR-1316-AK): 15 Alaska counties designated.
- Severe Freezing (1989, DR-826-AK): 11 Alaska counties designated.
- Severe Storms, Flooding, and Remnants of Typhoon Halong (2025, DR-4893-AK): 6 Alaska counties designated.
Named storms in its declarations: Typhoon Halong (2025).
Not counted above: 2 COVID-19 ("Biological") declarations — in 2020 every US county was included. Alaska also had 24 statewide declarations with no county list.
Tornado record since 1950 0
No tornado in NOAA's Storm Prediction Center record touched Kusilvak Census Area between 1950 and 2025. That does not mean one cannot happen.
How Kusilvak Census Area compares with its 5 nearest counties
| County | Distance | Overall risk | Score | Top hazard |
|---|---|---|---|---|
| Kusilvak Census Area (this page) | — | Relatively Low | 57.9 | Cold wave |
| Bethel Census Area | 237 km | Relatively Low | 44.3 | Cold wave |
| Nome Census Area | 309 km | Very Low | 34.1 | Cold wave |
| Dillingham Census Area | 380 km | Very Low | 35.7 | Cold wave |
| Bristol Bay Borough | 527 km | Very Low | 1.2 | Earthquake |
| Lake and Peninsula Borough | 550 km | Very Low | 6.3 | Volcanic activity |
Nearest by distance between county centres. Every county in Alaska, ranked.
Vulnerability and resilience
| Social vulnerability | Very High 100.0 |
|---|---|
| Community resilience | Very Low 5.9 |
| Community risk factor | 1.90 |
| Expected annual loss, all hazards | $11 million |
FEMA scales expected losses up where social vulnerability is high (people who may find it harder to prepare, evacuate or recover) and down where community resilience is high. A factor above 1 raises the risk score. For social vulnerability a high rating is worse; for resilience a high rating is better.
Prepare for Kusilvak Census Area's main hazards
- Right now: National Weather Service alerts for Alaska · all official warnings on Global Incident Tracker.
- Cold wave: Carbon monoxide in winter · Power outages now
- Winter weather: Power outages now · Carbon monoxide in winter
- Landslide: Landslides recorded
- Your property's flood zone: FEMA Flood Map Service Center ↗ — this page cannot tell you that.
- Official preparedness guidance: Ready.gov ↗ and your county emergency management office.
What this page shows, and what it misses
FEMA's National Risk Index rates a whole county against every other US county; it is a planning-level estimate for nationwide comparison, not a flood-zone map and not a substitute for a local risk assessment or the risk to one home. Declarations are presidential disaster, emergency and fire management declarations that named this county; state declarations and SBA or USDA designations are not included. Tornadoes are counted when the county is one of up to four listed on the track; 670 tornadoes that crossed a state line carry no county list in NOAA's file and are left out.
Federal Emergency Management Agency (FEMA), National Risk Index Dataset: National Risk Index Counties - v1.20.0 (December 2025). Retrieved from https://services.arcgis.com/XG15cJAlne2vxtgt/ArcGIS/rest/services/National_Risk_Index_Counties/FeatureServer/0/query on November 2, 2026, 1:20 PM EST. This product uses the Federal Emergency Management Agency’s National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
Federal Emergency Management Agency (FEMA), OpenFEMA Dataset: Disaster Declarations Summaries - v2, retrieved from https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries on November 2, 2026, 1:21 PM EST. This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
Tornado records: NOAA/NWS Storm Prediction Center, Severe Weather Database, tornadoes 1950–2025 (https://www.spc.noaa.gov/wcm/data/1950-2025_actual_tornadoes.csv, downloaded 2 November 2026). Public domain; not endorsed by NOAA. Compiled by Global Incident Tracker.
Questions about Kusilvak Census Area
What natural disasters is Kusilvak Census Area, Alaska most at risk from?
Kusilvak Census Area, Alaska has a Relatively Low natural-hazard risk rating in FEMA's National Risk Index (v1.20, December 2025): a score of 57.9 out of 100, higher than about 57% of US counties, with cold waves, winter storms and landslides scoring highest of its 18 hazards and $11 million a year in expected losses.
How many federal disaster declarations has Kusilvak Census Area had?
OpenFEMA lists 9 federal disaster declarations that included Kusilvak Census Area since 1989, not counting 2 for COVID-19; the latest is DR-4893-AK (Severe Storms, Flooding, and Remnants of Typhoon Halong, declared 22 October 2025). Another 24 Alaska declarations were made statewide without a county list.
How many tornadoes have hit Kusilvak Census Area?
NOAA's Storm Prediction Center has no tornado on record touching Kusilvak Census Area from 1950 to 2025.
Is the National Risk Index a flood zone map?
No. The National Risk Index is a planning-level estimate for a whole county, built for nationwide comparison. It does not tell you the flood zone or the risk of a single property: for that, look up the address on FEMA's Flood Map Service Center (msc.fema.gov) and ask your local floodplain manager.