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FEMA flood zones · Alaska

Aleutians West Census Area, Alaska Flood Zone Map

1 federal flood & hurricane disasters

Less than 1% of Aleutians West Census Area’s area is in FEMA’s high-risk flood zones.

Share of the whole county outline, rivers and lakes included; parts FEMA hasn’t mapped count as zero.

Coastal high risk (V, VE)FloodwayHigh risk (A, AE)Moderate (X, 500-year)Minimal (X)Undetermined (D)

Shaded areas are FEMA’s mapped flood hazard zones in and around Aleutians West Census Area, Alaska. Zoomed out they are simplified; at street level the map switches to FEMA’s exact layer. Tap anywhere to check that spot, or search an address above.

In their words

1 NOAA storm reports from Aleutians West Census Area describe what happened, in the words of the forecasters who covered it. Read the Alaska flood stories →

Federal disasters

10 federal disaster declarations since 2004, 1 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Storms, Flooding, And Remnants Of Typhoon HalongOct 8, 2025
Severe Storm, Flooding, And LandslidesSep 15, 2022
Severe StormDec 12, 2015
Severe Winter Storm, Tidal Surges And FloodingOct 18, 2004

Weather and water disasters only; most recent first. Source: OpenFEMA Disaster Declarations.

Recorded flood events

3 since 1996: 1 river or area floods and 2 coastal floods or surges.

EventDateDamage
FloodOct 22, 2004$5.0M
Storm Surge/TideAug 3, 2000$10,000
Storm Surge/TideDec 2, 1998—

— = no damage estimate in the record. Source: NOAA Storm Events Database.

From the storm reports

Flood · Oct 22, 2004. A moderate low moved from the southwest Bering Sea to the Bering Strait Friday evening, October 22nd. This resulted in strong gusty west wind that briefly peaked at 85 mph in the Pribilof Islands. The strong west wind resulted in significant damage to the break water to the Harbor in St George.

National Weather Service narratives, lightly trimmed. Source: NOAA Storm Events Database.

The zones you’ll see on the map

Every colour on the map above is a place on this drawing: where the ground sits relative to the flood FEMA plans for.

Cross-section of a river floodplainDiagram: a river valley. The floodway is the channel and the land beside it; the 1%-annual-chance flood surface (the base flood elevation) covers the valley floor as zone A or AE; a narrow band higher up is shaded X, the 0.2% floodplain; higher ground is X.0.2% CHANCE A YEAR (500-YEAR)BASE FLOOD ELEVATION · 1% A YEARXAEFloodwayAEX
  1. A / AE Inside the 1%-a-year floodplain: about a 26% chance of flooding over a 30-year mortgage. AE has a mapped base flood elevation; plain A does not.
  2. Floodway The channel and the land beside it that has to be kept clear enough to carry the flood. Building here is tightly limited.
  3. X shaded The 0.2% (500-year) floodplain, plus some levee-protected and very shallow flood areas.
  4. X Outside both lines. No federal requirement to insure, which is not the same as no risk.

Every flood zone code explained →

Flood insurance in Aleutians West Census Area

If a building in Aleutians West Census Area is in a high-risk zone (A or V) and its mortgage comes from a federally regulated or insured lender, or is federally backed, flood insurance is required.

Outside those zones it is optional, and often worth having: from 2014 to 2024 nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area. Since Risk Rating 2.0, NFIP premiums are set for each building, so the only reliable price is a quote: FloodSmart.gov or a local agent.