THE ISLAND COUNTY LAND BRIEF
Land in the
Olympic Rainshadow setting.
Island County has 208.7 square miles of land in Washington. The mapped landscape region in Island County is Olympic Rainshadow.
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.
Regional context: Puget Lowland ↗ · Regional mapping across the county footprint
Finding your parcel within Island County
The atlas lists 7 cities, towns, townships, and Census communities associated with Island County, including Camano, Oak Harbor, Whidbey Island Station. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Island County by land and water
The Census records 308.6 square miles of water within Island County, or 59.7% of its total area. That share is close to Island County’s 59.7%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Island County has 164.3 times the land area of nearby Coupeville town (1.27 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Jefferson County, Kitsap County, San Juan County, Skagit County, Snohomish County within Washington. A tract near one of these lines should be matched to the county identifier on its own records.

