THE WILSONVILLE LAND BRIEF
Land in the
Prairie Terraces setting.
Wilsonville city has 7.69 square miles of land in Clackamas County, Washington County. Its Census reference point is in Prairie Terraces, within Willamette Valley.
The Willamette River's floodplains and terraces sit among low hills and scattered buttes. The valley's prairie, oak and riparian landscape differs markedly from the conifer-covered mountains around it.
Regional context: Willamette Valley ↗ · Classification at the Census reference point
One place name. 2 county geographies.
Wilsonville intersects 2 county geographies: Clackamas County, Washington County. A Wilsonville mailing address alone cannot choose the right record office; use the county and parcel identifier on the tax bill or deed.
Wilsonville by land and water
The Census records 0.21 square miles of water within Wilsonville, or 2.6% of its total area. It is 0.2 percentage points higher than the 2.4% recorded for Oregon. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Wilsonville city has 91.4% of the land area of nearby Tualatin city (8.42 square miles). These areas describe boundaries, not comparable property prices.

