West Side Highway was a census-designated place (CDP) in Cowlitz County, Washington, named after a state highway (SR 411) running north–south between Longview and Castle Rock. As of the 2010 census, the CDP population was 5,517. Prior to the 2020 census, the CDP was split into two new CDPs, Beacon Hill and Lexington.

Geography

According to the United States Census Bureau, the CDP had a total area of 2.7 square miles (6.9 km), of which, 2.5 square miles (6.5 km) were land and 0.2 square miles (0.4 km) (6.01%) were water.

Demographics

As of the census