Mount Baldy

Orientation & Geography

North America, United States, Los Angeles County

Mt Baldy is an unincorporated community in San Bernardino County, California, United States. Mt Baldy is 12 miles (19 km) north of Ontario. Mt Baldy has a post office with ZIP code 91759. The community was established as Camp Baynham in 1906; it changed its name to Camp Baldy in 1910 and became Mt Baldy in 1951. Its post office was established in 1913.