THE NAMPA LAND BRIEF
Land in the
Treasure Valley setting.
Nampa city has 36.1 square miles of land in Canyon County. Its Census reference point is in Treasure Valley, within Snake River Plain.
The Snake River Plain is lower and gentler than its surrounding mountains. Alluvial valleys, sagebrush-covered plains, low hills and scattered lava fields form its principal landscape patterns.
Regional context: Snake River Plain ↗ · Classification at the Census reference point
Nampa and Canyon County
Nampa is associated with Canyon 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.
Nampa by land and water
The Census records 0.16 square miles of water within Nampa, or 0.4% of its total area. It is 2.3 percentage points lower than the 2.8% recorded for Canyon County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Nampa city has 1.4 times the land area of nearby Caldwell city (25.4 square miles). These areas describe boundaries, not comparable property prices.

