Altadena, CA Demographics

What is the population of Altadena?

There are 41,921 residents in Altadena, with a median age of 46. Of this, 47.02% are males and 52.98% are females. US-born citizens make up 77.59% of the resident pool in Altadena, while non-US-born citizens account for 17.04%. Additionally, 5.37% of the population is represented by non-citizens. A total of 38,775 people in Altadena currently live in the same house as they did last year.
Y-o-Y Change
Total Population 41,921 -1.9%
Male Population 19,711 -2.7%
Female Population 22,210 -1.1%
Male Population 47.02%
Female Population 52.98%
Y-o-Y Change
Median Age 46 5.0%
Citizen U.S. Born 32,528 -1.2%
Citizen not U.S. Born 7,142 -1.1%
Not Citizen 2,251 -11.9%
Citizen U.S. Born 77.59%
Citizen not U.S. Born 17.04%
Not Citizen 5.37%
Y-o-Y Change
Moved from Abroad 119 -40.8%
Moved from Same County 2,233 -18.9%
Moved from Same State 178 -41.1%
Moved from Different State 310 -26.0%
Same House as Last Year 38,775 0.2%
Moved from Abroad 0.29%
Moved from Same County 5.37%
Moved from Same State 0.43%
Moved from Different State 0.74%
Same House as Last Year 93.18%

What are the employment statistics in Altadena?

White-collar workers make up 88.43% of the working population in Altadena, while blue-collar employees account for 11.57%. There are also 8,684 entrepreneurs in Altadena (21.22% of the workforce); 18,624 workers employed in private companies (45.5%); and 7,238 people working in governmental institutions (17.68%).
Y-o-Y Change
White Collar 36,192 94.7%
Blue Collar 4,736 96.0%
White Collar 88.43%
Blue Collar 11.57%
Y-o-Y Change
Self Employees 8,684 109.2%
Private Companies 18,624 85.1%
Governmental Workers 7,238 117.5%
Not for Profit Companies 6,382 84.3%
Self Employees 21.22%
Private Companies 45.5%
Governmental Workers 17.68%
Not for Profit Companies 15.59%

How many households are there in Altadena?

There are a total of 15,018 households in Altadena, each made up of around 2 members. Family establishments represent 71.03% of these Altadena households, while non-family units account for the remaining 28.97%. Additionally, 28.26% of households have children and 71.74% of households are without children.
Y-o-Y Change
Total households 15,018 1.7%
Average People per Household 2 -29.6%
Family Households 10,667 -2.3%
Non-Family Households 4,351 12.9%
Family Households 71.03%
Non-Family Households 28.97%
Y-o-Y Change
Households with Children 4,244 -9.2%
Households without Children 10,774 6.8%
Households with Children 28.26%
Households without Children 71.74%

What are the median and average incomes in Altadena?

The average annual household income in Altadena is $177,894, while the median household income sits at $129,123 per year. Residents aged 25 to 44 earn $163,988, while those between 45 and 64 years old have a median wage of $146,904.
Y-o-Y Change
Average Household Income $177,894 3.2%
Median Household Income $129,123 4.2%
People below Poverty Level 3,078 7.4%
People above Poverty Level 38,124 -2.5%

How many homeowners and renters are there in Altadena?

There are 15,744 housing units in Altadena, and the median year in which these properties were built is 1945. Of the 15,018 occupied housing units in Altadena, 78.28% are owner-occupied, while 21.72% have renters living in them. Meanwhile, properties bought with mortgages account for 72.42% of the units, and the median value of a home with a mortgage is $1,086,100. In general, housing costs reach $2,630 per month in Altadena.
Y-o-Y Change
Housing Units 15,744 0.1%
Median Year Built 1945 0.0%
Built in 1939 or Earlier 6,047 2.4%
Built between 1940 and 1949 3,780 3.1%
Built between 1950 and 1959 2,493 -6.2%
Built between 1960 and 1969 1,031 -8.4%
Built between 1970 and 1979 717 1.3%
Built between 1980 and 1989 444 -10.8%
Built between 1990 and 1999 457 -0.2%
Built between 2000 and 2009 388 2.9%
Built between 2010 and 2019 350 12.5%
Built in 2020 or Later 37 85.0%
Y-o-Y Change
Occupied Housing Units 15,018 1.7%
Owner Occupied 11,756 5.2%
Renter Occupied 3,262 -9.2%
Owner Occupied 78.28%
Renter Occupied 21.72%
Y-o-Y Change
With Mortgage 8,514 3.8%
Without Mortgage 3,242 9.0%
Median Value with Mortgage $1,086,100 8.0%
Median Value without Mortgage $1,033,800 8.3%
Median Housing Costs per Month $2,630 4.5%
With Mortgage 72.42%
Without Mortgage 27.58%

What is the level of education in Altadena?

Approximately 19.24% of the population in Altadena holds a high school degree (that's 6,555 residents), while 18.06% have attained a college certificate (6,154 locals) and 26.04% have a bachelor's degree (8,872 people).
Y-o-Y Change
No High School 1,412 -10.9%
Some High School 6,555 4.5%
Some College 6,154 -23.9%
Associate Degree 2,905 4.2%
Bachelor's Degree 8,872 -0.2%
Graduate Degree 8,175 2.0%
No High School 4.14%
Some High School 19.24%
Some College 18.06%
Associate Degree 8.53%
Bachelor's Degree 26.04%
Graduate Degree 23.99%

What is the marital status of Altadena residents?

A total of 11,155 people in Altadena have never been married (which represents 31.66% of the total population), while 17,942 of them are wedded (50.93%). Separated and divorced residents are in smaller numbers, at 651 (1.85%) and 3,772 (10.71%), respectively.
Y-o-Y Change
Never Married 11,155 -4.7%
Married 17,942 1.0%
Separated 651 4.3%
Widowed 2,361 1.7%
Divorced 3,772 8.0%
Never Married 31.66%
Married 50.93%
Separated 1.85%
Widowed 6.7%
Divorced 10.71%

What are the most common means of transportation in Altadena?

The top three means of transportation people in Altadena use to get to work are: car, walking and bus or trolley bus. A total of 14,438 residents commute by car, 223 prefer going to work by walking and 83 by bus or trolley bus
Y-o-Y Change
Car 14,438 -4.2%
Bus or TrolleyBus 83 -63.0%
Subway or Elevated 23 N/A
Railroad 34 47.8%
Bicycle 70 -27.1%
Motorcycle 40 -21.6%
TaxiCab 32 -5.9%
Walk 223 -21.2%

Methodology & Disclaimers

Demographic data shown in this section was gathered from the latest U.S. Census Bureau release, the 2023 American Community Survey. The information is updated yearly, as soon as new data is made available by the US Census Bureau.
No representation, guarantee or warranty is made as to the accuracy or completeness of information modified or aggregated for specific neighborhoods and/or zip codes.