Walker, Mono County, California

Walker is an unincorporated community and census-designated place (CDP) in Mono County, California, United States. It is located 3 miles (5 km) south of Coleville. The ZIP Code is 96107, and mail to Walker should be addressed Coleville.

The town was likely named for pioneer Joseph R. Walker, who started his ascent of the Sierra Nevada range (as part of a longer expedition which ended in Monterey) in nearby Bridgeport. The Walker area was devastated by the 2020 Mountain View Fire, which resulted in evacuations. The population was 704 at the 2020 census.

Walker is one of the three northernmost communities in Mono County. It is bordered to the north by Coleville, which in turn is bordered to the north by Topaz. According to the Mono County government, Antelope Valley, including Walker, is expected to see significant population growth.

U.S. Route 395 passes through Walker, leading north 50 miles (80 km) to Carson City, Nevada, and southeast 30 miles (48 km) to Bridgeport, the Mono county seat.

According to the United States Census Bureau, the CDP covers an area of 12.2 square miles (32 km²), all of it land. Walker is situated at the south end of the Antelope Valley, drained to the north by the West Walker River.

Walker is served by the Antelope Valley Fire Protection District, founded in 1947 and covering 33 square miles (85 km²) of the Antelope Valley. The District's main fire station is located in Walker.

Portions of Walker are served by the Antelope Valley Water District, which was formed in 1961.

Walker first appeared as a census designated place in the 2010 U.S. census.