About Muscoy CDP, California
Muscoy CDP, California is a census-designated place (CDP) in San Bernardino County, California, United States. The population was 10,644 at the 2010 census, up from 8,919 at the 2000 census.
Muscoy is located in northwestern San Bernardino County, bordered to the north by the city of San Bernardino, to the east by Highland, to the south by Mentone, and to the west by unincorporated territory. Muscoy is immediately north of Guasti CDP.
According to the United States Census Bureau, the Muscoy CDP has a total area of 3.6 square miles (9.3 km2), all of it land.