California's 27th congressional district

California's 27th congressional district is a congressional district in the U.S. state of California. The district is currently represented by. It was one of 18 districts that would have voted for Joe Biden in the 2020 presidential election had they existed in their current configuration while being won or held by a Republican in 2022, and the only Republican-held congressional district to include portions of the actual city of Los Angeles.

The district includes most of northern Los Angeles County, including the cities of Santa Clarita, Palmdale, and Lancaster, and parts of the northwestern San Fernando Valley in the city of Los Angeles. Prior to redistricting in 2022, the district was located in the San Gabriel Valley.

Composition
As of the 2020 redistricting, California's 27th congressional district is located in southern California. It encompasses most of northern Los Angeles County, including the cities of Santa Clarita, Lancaster, and Palmdale, California; the neighborhoods of Porter Ranch and Granada Hills in the city of Los Angeles, along with the Sierra Pelona Mountains and the northern slopes of the San Gabriel Mountains.

Cities & CDP with 10,000 or more people

 * Los Angeles – 3,819,538
 * Santa Clarita - 228,673
 * Lancaster - 173,516
 * Palmdale - 169,450