Wetlands in Snohomish County, Washington

Snohomish County, Washington has 80,379 acres wetland mapped. The map below shows every mapped feature inside the county boundary.

Snohomish County, Washington at a glance

Wetland mapped80,379 acres
Distinct wetlands mapped25,549
Share of the county that is wetland6%
Most common wetland typeRiverine (14,137)
Distinct wetland types8
Largest single wetland1,883 acres (Riverine)

Snohomish County, Washington is home to 870,656 residents. Land Owl's national wetlands layer records the following within the county boundary — Wetland mapped: 80,379 acres. Distinct wetlands mapped: 25,549. Share of the county that is wetland: 6%. Most common wetland type: Riverine (14,137). Distinct wetland types: 8. Largest single wetland: 1,883 acres (Riverine). Every feature shown on the map above is clickable, and the figures on this page are derived from the same data the map renders, so they always agree. A free Land Owl account adds parcel boundaries, ownership records, flood zones, soils, wetlands and topography over the same view.

Frequently asked questions

How many wetlands are there in Snohomish County, Washington?
Land Owl maps 80,379 acres wetland mapped within Snohomish County, Washington.
Is this wetlands map free to use?
Yes. This map is free to view. A free Land Owl account unlocks the other data layers, parcel boundaries and ownership records.
Where does this data come from?
Land Owl maps wetlands from the U.S. Fish & Wildlife Service National Wetlands Inventory (NWI). NWI-mapped wetlands are a screening tool, not a jurisdictional delineation — confirm any boundary with a qualified delineator before you rely on it.

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