Banks Lake South is a census-designated place (CDP) in Grant County, Washington, United States. The population was 234 at the 2020 census.
Geography
Banks Lake South is located in northern Grant County adjacent to the eastern border of Coulee City. It is on the east side of Banks Lake near its southern end, part of the Upper Grand Coulee valley.
U.S. Route 2 passes through the CDP, leading east to Wilbur and west to Wenatchee. Spokane is to the east via US 2. Washington State Route 155 leads northeast from Banks Lake to the city of Grand Coulee near the Grand Coulee Dam.
According to the United States Census Bureau, the Banks Lake South CDP has a total area of , of which are land and , or 16.06%, are water.
Demographics
As of the census