Natural Disaster Risk — ZIP Code 99740

Natural Hazard Profile: ZIP 99740, Alaska

ZIP 99740 in Fort Yukon sits in Alaska, the northernmost U.S. state. Its subarctic climate produces subarctic conditions with extreme cold winters and brief summers, and notably severe winter storms. These conditions define the natural disaster environment for households across this ZIP code.

According to FEMA's National Risk Index, ZIP 99740 carries an overall risk score of 5.2/10, placing it in the moderate category. Arctic air outbreaks are the leading natural hazard, with temperature plunges to dangerous lows capable of causing hypothermia and widespread infrastructure failures. The area also faces notable exposure to avalanche and landslide.

Within Alaska, ZIP 99740's risk is, slightly above the 4.6/10 state average. Nationally, it ranks above the U.S. national average of 4.5/10. FEMA's analysis of Alaska identifies cold wave as the foremost hazard, followed by avalanche and landslide. These rankings reflect the relative frequency and severity of each hazard type in the local environment.

With a moderate risk rating, ZIP 99740 residents are well-served by maintaining standard preparedness practices — an emergency supply kit, awareness of local hazard seasonality, and insurance that covers the top local risks. Periodic review of coverage for cold wave is recommended.