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Yukon-Koyukuk Census Area, Alaska Flood Zones

Check an Address in Yukon-Koyukuk Census Area

Enter any address in Yukon-Koyukuk Census Area, Alaska to see its FEMA flood zone

Flood Risk Data for Yukon-Koyukuk Census Area

Yukon-Koyukuk Census Area, Alaska is subject to flood risk from various sources. The county has received 21 federal disaster declarations, 8 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.

Yukon-Koyukuk Census Area Disaster History

FEMA Disaster Declarations (1986–2025)

Disaster Declarations
21
Flood/Coastal Disasters
8
Latest Disaster
Severe Storms, Flooding, And Remnants Of Typhoon Halong (2025-10-08)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in Yukon-Koyukuk Census Area

DeclarationTypeDate
Severe Storms, Flooding, And Remnants Of Typhoon HalongFloodOct 8, 2025
Nenana Ridge ComplexFireJul 4, 2025
FloodingFloodMay 12, 2023
Clear FireFireJun 21, 2022
Severe Winter Storm And Straight-line WindsSevere StormDec 25, 2021
Covid-19BiologicalJan 20, 2020
Covid-19 PandemicBiologicalJan 20, 2020
FloodingFloodMay 17, 2013
Flooding And Ice JamsFloodApr 28, 2009
Severe Storms, Flooding, Landslides, And MudslidesSevere StormJul 27, 2008

Yukon-Koyukuk Census Area NFIP Flood Insurance Claims

Total Claims Filed
61
Total Paid Out
$2.7M
Avg Claim
$59,262
Avg Water Depth
10.3 ft

Claims by Flood Zone

A Zones (High Risk)
54
X Shaded (500-yr)
2
X Unshaded (Low)
1

Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).

Flood Zone Types in Yukon-Koyukuk Census Area

FEMA assigns flood zone designations to areas in Yukon-Koyukuk Census Area, Alaska:

AE High Risk — 1% annual chance of flooding. Insurance required.

VE Very High Risk — Coastal flooding with wave action.

X (Shaded) Moderate Risk — 500-year floodplain.

X Low Risk — Outside major floodplains.

View all flood zone types →

Flood Insurance in Yukon-Koyukuk Census Area

Properties in Yukon-Koyukuk Census Area, Alaska that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.

Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.

Visit FloodSmart.gov to find an agent and get a quote.