Natural Disaster Risk — ZIP Code 99603

Natural Hazard Profile: ZIP 99603, Alaska

ZIP 99603 covers part of the Homer area, in Alaska, the northernmost U.S. state. The surrounding region experiences subarctic conditions with extreme cold winters and brief summers, with severe winter storms shaping the natural hazards that residents of this ZIP code face. Risk scores here are derived from FEMA data for the encompassing county.

FEMA rates ZIP 99603's composite natural disaster risk at 5.7 out of 10 — moderate risk. Snow avalanche exposure tops the local risk profile, with the area's mountain setting and annual snowfall loading producing regular avalanche cycles on steep slopes. Residents should also account for tsunami and earthquake risk in their preparedness planning.

ZIP 99603's risk score, slightly above the 4.6/10 state average and above the U.S. national average of 4.5/10. Of the 18 hazard categories tracked by FEMA, the highest-scoring are avalanche, tsunami, and earthquake. These scores reflect county-level data and represent the baseline risk that all communities in the county share.

With a moderate risk rating, ZIP 99603 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 avalanche is recommended.