California, United States · North America
42,777
Population
North America
Continent
Los_Angeles
Timezone
US
Country Code
Altadena (AL-tə-DEE-nə) is an unincorporated area, and census-designated place in the San Gabriel Valley and the Verdugos regions of Los Angeles County, California. 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.
Coordinates
34.1897°, -118.1312°
Elevation
414m
Region/State
California
District
Los Angeles County
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Country
United States
Region
California
Timezone
America/Los_Angeles
Population
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42,777
