Lewisville is a census-designated place (CDP) in Clark County, Washington, United States. The population was 1,860 at the 2020 census.

Geography

Lewisville is located in central Clark County and is bordered to the southeast by Venersborg, to the southwest by the city of Battle Ground, and for a small distance on the west by Cherry Grove.

According to the United States Census Bureau, the Lewisville CDP has a total area of , of which is land and , or 0.70%, is water.

Demographics