Altadena is an unincorporated community in Los Angeles County, situated 14 miles north of downtown Los Angeles at the base of the San Gabriel Mountains. The community covers 8.7 square miles and sits at an elevation of 1,358 feet, enjoying a Mediterranean climate with hot, dry summers and mild, wet winters.

As of 2020, Altadena's population stood at 42,846, showing relative stability with only slight changes from previous years. The community is notably diverse, with White residents comprising 53.2% of the population (41.2% being Non-Hispanic White), African Americans making up 19.7%, and Hispanic or Latino residents of any race representing 29.5%. Asian residents account for 5.2% of the population, while smaller percentages include Native American (0.6%), Pacific Islander (0.1%), and those of two or more races (6.9%).

The community demonstrates strong economic indicators, with a median household income of $123,869 as of 2022, representing a significant 12.9% increase from the previous year. This economic strength is complemented by a high level of educational attainment, with over 52% of residents holding at least a bachelor's degree.

Housing patterns in Altadena reflect a stable, established community. The area maintains a high homeownership rate of 75.7%, with property values averaging $991,200 in 2022. There were 15,947 housing units recorded in the 2010 census. The typical household owns two cars, and residents experience an average commute time of 27.8 minutes.

The population shows a mature age profile with a median age of 43.8 years. This demographic makeup, combined with the area's high educational attainment and income levels, suggests a well-established, affluent suburban community that maintains significant diversity while offering a high quality of life for its residents.​​​​​​​​​​​​​​​​

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