Camp Pendleton Mainside, California

Camp Pendleton Mainside
Location in San Diego County and the state of California
Camp Pendleton Mainside
Location in the United States
Coordinates: 33°18′18″N 117°18′22″W / 33.30500°N 117.30611°W / 33.30500; -117.30611
Country United States
State California
County San Diego
Area
 • Total
10.950 sq mi (28.360 km2)
 • Land10.747 sq mi (27.835 km2)
 • Water0.203 sq mi (0.525 km2)  1.85%
Population
 (2020)
 • Total
9,683
 • Density901.0/sq mi (347.9/km2)
Time zoneUTC-8 (PST)
 • Summer (DST)UTC-7 (PDT)
ZIP code
92055
Area codes442/760
FIPS code06-10559
GNIS feature ID2407946

Camp Pendleton Mainside is a census-designated place (CDP) in San Diego County, California, located at the southeast corner of Marine Corps Base Camp Pendleton. Per the 2020 census, the population was 9,683. It was formerly known as Camp Pendleton North, but its name was changed for the 2020 Census. Along with Camp Pendleton South, it is one of two CDPs located on the base.