THE SNOHOMISH COUNTY LAND BRIEF
Land in the
North Cascades Highland Forests setting.
Snohomish County has 2,086.5 square miles of land in Washington. 6 mapped landscape regions meet across Snohomish County: North Cascades Highland Forests, North Cascades Lowland Forests, Eastern Puget Uplands, among others.
Rugged high mountains and glacial terrain span a strong west-to-east climate transition. Wetter maritime forests to the west contrast with drier inland conditions on the eastern side.
Regional context: North Cascades ↗ · Regional mapping across the county footprint
Where the landscape changes
Snohomish County intersects 6 mapped regional units. The largest mapped shares are:
- North Cascades Highland Forests29.2%
- North Cascades Lowland Forests22.9%
- Eastern Puget Uplands19.9%
- North Cascades Subalpine/Alpine11.7%
- Eastern Puget Riverine Lowlands10.7%
Puget Lowland in Snohomish County
A glacial lowland surrounds Puget Sound with islands, bays, peninsulas and rolling terrain. Moraines, outwash plains and river terraces create a varied setting beneath the region's maritime climate.
Read the regional source ↗Finding your parcel within Snohomish County
The atlas lists 67 cities, towns, townships, and Census communities associated with Snohomish County, including Everett, Marysville, Maltby. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Snohomish County by land and water
The Census records 109.2 square miles of water within Snohomish County, or 5% of its total area. That share is close to Snohomish County’s 5%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Snohomish County has 192.1 times the land area of nearby Verlot CDP (10.9 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Chelan County, Island County, King County, Kitsap County, Skagit County within Washington. A tract near one of these lines should be matched to the county identifier on its own records.

