Map of Altadena, United States

Altadena is a city in California, United States, with a population of about 42,777. It lies at 34.1897°N, 118.1312°W, about 414 m above sea level. Altadena is about 3,677 km (2,285 mi) west of Washington, D.C., the capital. The nearest city on our map is Pasadena, 5 km to the south.

Altadena at a glance

Region
California
Population
42,777GeoNames
Coordinates
34.1897, -118.131234°11′23″N 118°07′52″W
Time zone
America/Los_AngelesUTC−08:00 / UTC−07:00 (daylight saving time)
Local time
–
Elevation
414 m (1,358 ft)
Distance to Washington, D.C.
3,677 km (2,285 mi)

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Sources: place names, coordinates, populations and time zones from GeoNames (CC BY 4.0, data retrieved October 2026). Population figures are the latest values recorded in GeoNames; depending on the country they refer to the city proper, a municipality or a wider urban area, so they can differ from census or metro-area figures. Map © OpenStreetMap contributors.