Race, Diversity, and Ethnicity in Altadena, CA

The map below shows majority race by area in Altadena, as self-identified on the US census. Darker shades indicate a larger racial majority in that neighborhood. This page also contains data and maps on Altadena racial diversity and diversity scores. Click here to scroll to diversity data.

Altadena, CA map of race and ethnicity
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White
Hispanic
Black
Asian
Multiple/Other
WhiteHispanicBlackAsianMultiple/Other
Majority race by area

The majority race in Altadena overall is white, making up 36.0% of residents. The next most-common racial group is hispanic at 28.5%. There are more white people in the northeast areas of the city. People who identify as hispanic are most likely to be living in the southwest places. The data below shows how many people identify themselves as each of the following races, which most Americans base on their family's national origin:

Race in Altadena

 
Self-Identified Race
Altadena, CA Population
White
36.0%
Hispanic
28.5%
Black
20.4%
Asian
6.5%
Native American
0.1%
Other
8.5%
   

Diversity and Diversity Scores for Altadena, CA

The map below shows diversity in Altadena. Areas in green are more diverse, while areas in red are much less diverse. Diversity, in this case, means a mixture of people with different race and ethnicity living close to one another. For example, all-black and all-white areas in the city would both be considered lacking diversity.

Altadena, CA map of race and ethnicity
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Colorblind friendly off

Altadena Diversity Score

73.6

More diverse than 100% of US cities

Altadena has a diversity score of 73.6: the chance, in percent, that two residents picked at random belong to different racial or ethnic groups, from ACS race counts. A place where everyone shares one group scores 0, and an even mix of the six groups in the chart above scores the maximum, 83.3. Altadena is much more diverse than other US cities, more diverse than 100% of them. Within Altadena's proper boundaries, the most diverse area is northwest Altadena, and the least diverse areas are in northeast Altadena.

Source: BestNeighborhood calculations from the U.S. Census Bureau, American Community Survey (ACS) 2020-2024 5-year estimates (race and Hispanic origin); proprietary data mapping and analysis. Special thanks to the University of Virginia.