THE CASTLE ROCK LAND BRIEF
Land in the
Cowlitz/Chehalis Foothills setting.
Castle Rock city has 2.1 square miles of land in Cowlitz County. Its Census reference point is in Cowlitz/Chehalis Foothills, 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
Castle Rock and Cowlitz County
Castle Rock is associated with Cowlitz 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.
Castle Rock by land and water
The Census records 0.23 square miles of water within Castle Rock, or 9.8% of its total area. It is 7.6 percentage points higher than the 2.2% recorded for Cowlitz County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Castle Rock city has 1.6 times the land area of nearby Lexington CDP (1.34 square miles). These areas describe boundaries, not comparable property prices.

