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B

Whatcom, WA

Flood Risk Score: 23/100 · Rank #90 of 3,277 counties

Whatcom County in Washington has 14 FEMA disaster declarations on record covering 1971–2026, most recently Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides on Apr 7, 2026 (DR-4906). Its flood risk grade is B (Moderate risk), ranking #90 of 3,277 U.S. counties, with 97 NFIP flood insurance claims totaling $6,335,974 in payouts. Flood risk is relatively low compared to the national average.

23
Risk Score
97
NFIP Claims
$6,335,974
Total Payouts
14
Disasters
$65,319
Avg Claim
97
Active Policies

FEMA Disaster Declarations in Whatcom County

The 14 most recent federally declared disasters affecting Whatcom County, WA (1971–2026). Total declarations on record: 14.

DeclaredIncident TypeTitleFEMA Disaster #
Apr 7, 2026FloodSevere Storms, Straight-Line Winds, Flooding, Landslides, and MudslidesDR-4906
Dec 12, 2025FloodSevere Storms, Straight-Line Winds, Flooding, Landslides, and MudslidesDR-3629
Jan 5, 2022FloodSevere Storms, Straight-Line Winds, Flooding, Landslides, and MudslidesDR-4635
Apr 23, 2020FloodSevere Storms, Flooding, Landslides, and MudslidesDR-4539
Apr 21, 2017FloodSevere Winter Storms, Flooding, Landslides, MudslidesDR-4309
Jan 30, 2009FloodSevere Winter Storm, Landslides, Mudslides, and FloodingDR-1817
Sep 7, 2005Coastal StormHurricane Katrina EvacuationDR-3227
Mar 8, 1991FloodSevere Storms & High TidesDR-896
Nov 26, 1990FloodSevere Storms & FloodingDR-883
Jan 27, 1983FloodSevere Storms, High Tides & FloodingDR-676
Dec 31, 1979FloodStorms, High Tides, Mudslides & FloodingDR-612
Dec 10, 1977FloodSevere Storms,mudslides, & FloodingDR-545
Dec 13, 1975FloodSevere Storms & FloodingDR-492
Feb 9, 1971FloodHeavy Rains, Melting Snows & FloodingDR-300

Score Breakdown

The composite score of 23 is calculated from four weighted factors. See our methodology for details.

Claims Density
40%
1
Disaster Frequency
25%
30
Claim Severity
20%
1
Year-over-Year Trend
15%
100

Other Counties in Washington

CountyGradeScoreClaimsDisasters
SkagitB224813
KingB257818
ThurstonA201315
KitsapA19167
IslandA18196
WahkiakumA16215
View All Counties in Washington

Frequently Asked Questions

How many FEMA disaster declarations does Whatcom County, WA have?

Whatcom County, WA has 14 federal disaster declarations on FEMA record (1971–2026). The 5 most recent are: Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides (declared Apr 7, 2026, DR-4906); Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides (declared Dec 12, 2025, DR-3629); Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides (declared Jan 5, 2022, DR-4635); Severe Storms, Flooding, Landslides, and Mudslides (declared Apr 23, 2020, DR-4539); Severe Winter Storms, Flooding, Landslides, Mudslides (declared Apr 21, 2017, DR-4309). Counts include flood, severe storm, hurricane, and coastal storm declarations from the OpenFEMA DisasterDeclarationsSummaries dataset.

What is the flood risk grade for Whatcom County, WA?

Whatcom County is graded B (composite score 23/100, moderate risk). It ranks #90 of 3,277 U.S. counties for flood risk in our scoring model. The grade combines NFIP claims density (40%), disaster frequency (25%), claim severity (20%), and year-over-year trend (15%).

How many NFIP flood insurance claims have been filed in Whatcom County?

97 NFIP flood insurance claims have been filed in Whatcom County, WA, totaling $6,335,974 in payouts. The average claim is $65,319. Source: FEMA FimaNfipClaims v2 dataset.

Has Whatcom County, WA had any recent flood disasters?

Yes. The most recent FEMA declaration affecting Whatcom County was Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides on Apr 7, 2026 (DR-4906). The county has 14 declared disasters in the OpenFEMA record covering 1971–2026.

For this entity, the underlying data on this page comes from FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.

Every number on this page links back to FEMA OpenFEMA datasets including the National Flood Hazard Layer and NFIP claims; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.

Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. ZIPs, counties, and states. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.

Source: FEMA OpenFEMA datasets, 2026.