Wasco (formerly, Dewey and Deweyville) is a city in the San Joaquin Valley, in Kern County, California, United States. Wasco is located 24 miles (39 km) northwest of Bakersfield, at an elevation of 328 feet (100 m). The population was 25,545 at the 2010 census, up from 21,263 at the 2000 census.
According to the United States Census Bureau, the city has a total area of 9.4 square miles (24.4 km²), all of it land. At the 2000 census, according to the United States Census Bureau, the city had a total area of 7.6 square miles (19.7 km²), all of it land. Wasco is located on the floor of the San Joaquin Valley, at the intersection of California State Routes 43, which runs north-south, and 46, which runs east-west.