Reference only. Data sourced from HUD/FHFA (2025). This site is a private entity and not affiliated with any government agency.
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Flood risk by county

National Risk Index scores attached to every county calculator.

CountyRiskScoreDetails
Adams CountyHigh73View
Asotin CountyHigh60View
Benton CountyHigh56View
Chelan CountyVery High96View
Clallam CountyHigh77View
Clark CountyHigh77View
Columbia CountyVery High98View
Cowlitz CountyHigh62View
Douglas CountyVery High96View
Ferry CountyVery High98View
Franklin CountyHigh56View
Garfield CountyVery High98View
Grant CountyHigh68View
Grays Harbor CountyLow20View
Island CountyHigh72View
Jefferson CountyVery High98View
King CountyVery High85View
Kitsap CountyLow29View
Kittitas CountyModerate42View
Klickitat CountyVery High98View
Lewis CountyModerate33View
Lincoln CountyVery High98View
Mason CountyVery High86View
Okanogan CountyVery High98View
Pacific CountyVery High98View
Pend Oreille CountyVery High98View
Pierce CountyVery High85View
San Juan CountyVery High98View
Skagit CountyHigh69View
Skamania CountyHigh77View
Snohomish CountyVery High85View
Spokane CountyVery High88View
Stevens CountyVery High88View
Thurston CountyHigh73View
Wahkiakum CountyVery High98View
Walla Walla CountyVery High94View
Whatcom CountyLow26View
Whitman CountyHigh78View
Yakima CountyVery High98View