THE THE DALLES LAND BRIEF
Land in the
Pleistocene Lake Basins setting.
The Dalles city has 6.69 square miles of land in Wasco County. Its Census reference point is in Pleistocene Lake Basins, within Columbia Plateau.
Basalt underlies this dry plateau of grassland and sagebrush. Windblown soils cover some uplands, while ancient flood paths exposed rock across the region's scabland terrain.
Regional context: Columbia Plateau ↗ · Classification at the Census reference point
The Dalles and Wasco County
The Dalles is associated with Wasco 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.
The Dalles by land and water
The Census records 0.24 square miles of water within The Dalles, or 3.5% of its total area. It is 2.9 percentage points higher than the 0.6% recorded for Wasco County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, The Dalles city has 1.2 times the land area of nearby Chenoweth CDP (5.62 square miles). These areas describe boundaries, not comparable property prices.

