Los Serranos is a neighborhood within the city of Chino Hills in southwestern San Bernardino County, California.

The Greening family owned the golf course and put in the sewer system as part of the original water works well before most of the properties were developed.

Los Serranos is a substandard lot size subdivision within the city of Chino Hills.

Lower Los Serranos is defined by Joyce and George Butler who run Support Our Area Residents (S.O.A.R.

Its original housing supported the staff and guests at The Los Serranos Golf and Country Club prior to the 1950s.

The Alternative Education Center occupies the site of the former Los Serranos Elementary School, which closed following the 2008-2009 academic year.

A more recent school is Chaparral Elementary, located on the east end of Los Serranos, opened in August 2006.