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Matanuska-Susitna Borough, Alaska Flood Zones

Check an Address in Matanuska-Susitna Borough

Enter any address in Matanuska-Susitna Borough, Alaska to see its FEMA flood zone

Flood Risk Data for Matanuska-Susitna Borough

Matanuska-Susitna Borough, Alaska has recorded 6 flood-related events since 1996 according to NOAA's Storm Events Database. The county has received 19 federal disaster declarations, 5 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.

Matanuska-Susitna Borough Disaster History

FEMA Disaster Declarations (1986–2022)

Disaster Declarations
19
Flood/Coastal Disasters
5
Latest Disaster
Severe Winter Storm And Straight-line Winds (2022-01-01)

Source: OpenFEMA Disaster Declarations Summaries.

Recent Disaster Declarations in Matanuska-Susitna Borough

DeclarationTypeDate
Severe Winter Storm And Straight-line WindsSevere StormJan 1, 2022
Covid-19BiologicalJan 20, 2020
Covid-19 PandemicBiologicalJan 20, 2020
Deshka Landing FireFireAug 17, 2019
Mckinley FireFireAug 17, 2019
EarthquakeEarthquakeNov 30, 2018
FloodingFloodMay 11, 2018
Sockeye FireFireJun 15, 2015
Severe Storm, Straight-line Winds, Flooding, And LandslidesSevere StormSep 15, 2012
Flooding And Ice JamsFloodApr 28, 2009

Recorded Flood Events in Matanuska-Susitna Borough

NOAA Storm Events Database (1996–2025)

Total Flood Events
6
River/Area Floods
6
Total Property Damage
$1.4M

Source: NOAA National Weather Service Storm Events Database.

Recent Flood Events in Matanuska-Susitna Borough

TypeDateDamage
FloodSep 30, 2004
FloodOct 1, 2004
FloodJul 27, 200350K
FloodJul 16, 20031M
FloodMay 15, 2002300K
FloodJul 1, 2001

Matanuska-Susitna Borough Flood History

Flood — Oct 1, 2004

A strong Bering Sea storm pushed extremely moist air into the south central region of Alaska beginning Wednesday, September 29th. Heavy rain and snow occurred over the previous weekend resulting in saturated soil throughout the region. Rainfall of moderate to heavy rates was reported by observation sites in the Susitna Valley south to the Anchorage bowl beginning late Wednesday, September 29th,...

Flood — Jul 27, 2003

Another strong storm moved into northwest Alaska bringing heavy rain into the interior and south central regions of the state. Rainfall amounts were reported at 7.45 inches over a day and a half period at the base of Ruth Glacier. Talkeetna reported 1.78 inches and Hatcher Pass reported 2.34 inches in a 24 hour period. This event occurred 11 days after a previous major flood event that occurred...

Source: NOAA National Weather Service Storm Events Database.

Matanuska-Susitna Borough NFIP Flood Insurance Claims

Total Claims Filed
65
Total Paid Out
$1.9M
Avg Claim
$40,635
Avg Water Depth
11.5 ft

Claims by Flood Zone

A Zones (High Risk)
33
X Unshaded (Low)
13

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

Flood Zone Types in Matanuska-Susitna Borough

FEMA assigns flood zone designations to areas in Matanuska-Susitna Borough, 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 Matanuska-Susitna Borough

Properties in Matanuska-Susitna Borough, 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.