THE ROCHE HARBOR LAND BRIEF
Land in the
San Juan Islands setting.
Roche Harbor CDP has 4.02 square miles of land in San Juan County. Its Census reference point is in San Juan Islands, within Puget Lowland.
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 ↗ · Classification at the Census reference point
Roche Harbor and San Juan County
Roche Harbor is associated with San Juan County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Roche Harbor by land and water
The Census records 1.89 square miles of water within Roche Harbor, or 32% of its total area. It is 40 percentage points lower than the 72% recorded for San Juan County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Roche Harbor CDP has 1.8 times the land area of nearby Friday Harbor town (2.19 square miles). These areas describe boundaries, not comparable property prices.

