Topanga Canyon in the context of Palisades Fire

⭐ Core Definition: Topanga Canyon

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.

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Topanga Canyon in the context of Santa Monica Bay

33°56′20″N 118°30′15″W / 33.93889°N 118.50417°W / 33.93889; -118.50417

Santa Monica Bay is a bight of the Pacific Ocean in Southern California, United States. Its boundaries are slightly ambiguous, but it is generally considered to be the part of the Pacific within an imaginary line drawn between Point Dume, in Malibu, and the Palos Verdes Peninsula. Its eastern shore forms the western boundary of the Los Angeles Westside and South Bay regions. Although it was fed by the Los Angeles River until the river's catastrophic change of course in 1825, the only stream of any size now flowing into it is Ballona Creek. Smaller waterways draining into the bay include Malibu Creek, Topanga Creek, and Santa Monica Creek.

View the full Wikipedia page for Santa Monica Bay

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