Altadena is an unincorporated area and census-designated place in the Verdugo Mountains region of Los Angeles County, California, approximately 14 miles from downtown Los Angeles, and directly north of the city of Pasadena, California.

Find directions to Altadena, CA, browse local businesses, landmarks, get current traffic estimates, road conditions, and more. Altadena, California, is a charming unincorporated area nestled at the base of the San Gabriel Mountains, known for its scenic beauty and historic landmarks.

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Altadena Map. Altadena is an unincorporated area and census-designated place in Los Angeles County, California, United States, approximately 14 miles (23 km) from the downtown Los Angeles Civic Center, and directly north of the neighborhood of Pasadena, California. The population was 42,777 at the 2010 census, up from 42,610 at the 2000 census.

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View Google Map for locations near Altadena: Pasadena, Sierra Madre, San Marino, South Pasadena, Montrose. Check online the map of Altadena, CA with streets and roads, administrative divisions, tourist attractions, and satellite view.

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Directly north of Pasadena, it is located approximately 14 miles (23 km) from Downtown Los Angeles. Its population was 42,846 at the 2020 census, up slightly from a 2010 figure of 42,777. In early 2025, the community was severely impacted by the Eaton Fire.