THE SKAGIT COUNTY LAND BRIEF
Land in the
North Cascades Lowland Forests setting.
Skagit County has 1,730.2 square miles of land in Washington. 7 mapped landscape regions meet across Skagit County: North Cascades Lowland Forests, North Cascades Highland Forests, Eastern Puget Riverine Lowlands, 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
Skagit County intersects 7 mapped regional units. The largest mapped shares are:
- North Cascades Lowland Forests40.2%
- North Cascades Highland Forests29.2%
- Eastern Puget Riverine Lowlands12.5%
- North Cascades Subalpine/Alpine8.3%
- Eastern Puget Uplands6.3%
Puget Lowland in Skagit 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 Skagit County
The atlas lists 19 cities, towns, townships, and Census communities associated with Skagit County, including Mount Vernon, Anacortes, Big Lake. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Skagit County by land and water
The Census records 186.8 square miles of water within Skagit County, or 9.7% of its total area. That share is close to Skagit County’s 9.7%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Skagit County has 1,475 times the land area of nearby Concrete town (1.17 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Chelan County, Island County, Okanogan County, San Juan County, Snohomish County, Whatcom County within Washington. A tract near one of these lines should be matched to the county identifier on its own records.

