Altadena Flag

Altadena

County Seat:
No
Area (mi²):
8.465
State:
California

Altadena is a CDP located in Los Angeles County, California. Altadena has a 2025 population of 42,704. Altadena is currently declining at a rate of -0.01% annually and its population has decreased by -0.77% since the most recent census, which recorded a population of 43,037 in 2020.

The average household income in Altadena is $177,894 with a poverty rate of 7.44%.The median age in Altadena is 46.2 years: 44.1 years for males, and 48.2 years for females.

42.7K
Total Population
5,045
Density (mi²)
-5 -0.01%
Growth

Altadena Population

Altadena Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Altadena includes 46.01% White, 18.02% Black or African American, 11.95% other race, 5.65% Asian, and smaller percentages for Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White19,28746.01%
Black or African American7,55518.02%
Two or more races7,17617.12%
Other race5,01111.95%
Asian2,3705.65%
Native American5221.25%

Altadena Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Altadena's average per capita income is $69,988. Household income levels show a median of $129,123. The poverty rate stands at 7.44%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$193,387-
Families$153,791$201,024
Households$129,123$177,894
Non Families$82,034$112,415

$69,988

Average Income

$129,123

Median Household Income

7.44%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)