Topanga, California

Topanga, California
Topaa'nga (Tongva)
View of Topanga Canyon from one of the hiking trails
Location of Topanga in California and Los Angeles County
Topanga
Location in the United States
Topanga
Topanga (California)
Topanga
Topanga (the Los Angeles metropolitan area)
Coordinates: 34°05′23″N 118°36′16″W / 34.08972°N 118.60444°W / 34.08972; -118.60444
Country United States
State California
CountyLos Angeles
Named afterTopaa'nga, a Tongva word perhaps meaning "where the mountain meets the sea" or "the place above"
Government
 • SenateBen Allen (D)
 • AssemblyJacqui Irwin (D)
 • U. S. CongressBrad Sherman (D)
Area
 • Total
19.134 sq mi (49.558 km2)
 • Land19.127 sq mi (49.538 km2)
 • Water0.0077 sq mi (0.020 km2)  0.04%
Elevation
1,084 ft (330 m)
Population
 (2020)
 • Total
8,560
 • Density448/sq mi (173/km2)
Time zoneUTC-8 (PST)
 • Summer (DST)UTC-7 (PDT)
ZIP code
90290
Area codes310/424, 747/818
GNIS feature ID2583164
FIPS code06-78960

Topanga (Tongva: Topaa'nga) is an unincorporated community in western Los Angeles County, California, United States. Located in the Santa Monica Mountains, the community exists in Topanga Canyon and the surrounding hills. The narrow southern portion of Topanga at the coast is between the city of Malibu and the Los Angeles neighborhood of Pacific Palisades. For statistical purposes, the United States Census Bureau has defined Topanga as a census-designated place (CDP). As of the 2020 census the population of the Topanga CDP was 8,560. The ZIP code is 90290 and the area code is primarily 310, with 818 only at the north end of the canyon. It is in the 3rd County Supervisorial district.

Topanga is the largest unincorporated area in Los Angeles County by area, although a majority of it is undeveloped. The 2025 Palisades Fire severely impacted the community with the devastation of structures destroyed, forcing evacuations, and multiple road closures.