Altadena, CA
Demographics And Statistics

Demographics | Cost Of Living
Updated: 2025-10-25

Living In Altadena, California Summary

Life in Altadena research summary. HomeSnacks has been using Saturday Night Science to research the quality of life in Altadena over the past nine years using Census, FBI, Zillow, and other primary data sources. Based on the most recently available data, we found the following about life in Altadena:

  • The population in Altadena is 41,921.

  • The median home value in Altadena is $1,136,621.

  • The median income in Altadena is $129,123.

  • The cost of living in Altadena is 187 which is 1.9x higher than the national average.

  • The median rent in Altadena is $2,250.

  • The unemployment rate in Altadena is 7.3%.

  • The poverty rate in Altadena is 7.4%.

  • The average high in Altadena is 75.3° and the average low is 54.1°.

Altadena SnackAbility

7.5
Overall SnackAbility
Jobs
8/10
Housing
9.5
Affordability
4
Diversity
10
Safety
N/A
Amenities
9.5
Education
8
Commute
5

Altadena, CA Cost Of Living

Cost of living in Altadena summary. We use data on the cost of living to determine how expensive it is to live in Altadena. Real estate prices drive most of the variance in cost of living around California. Key points include:

  • The cost of living in Altadena is 187 with 100 being average.

  • The cost of living in Altadena is 1.9x higher than the national average.

  • The median home value in Altadena is $1,136,621.

  • The median income in Altadena is $129,123.

187
Altadena's Overall Cost Of Living
1.9x
Higher Than The National Average

Cost Of Living In Altadena Comparison Table

Living Expense Altadena California National Average
Overall 187 141 100
Services 115 110 100
Groceries 111 112 100
Health 108 110 100
Housing 361 195 100
Transportation 126 125 100
Utilities 111 128 100

Altadena, CA Weather

  • The average high in Altadena is 75.3° and the average low is 54.1°.

  • There are 22.7 days of precipitation each year.

  • Expect an average of 16.2 inches of precipitation each year with 0.2 inches of snow.

StatAltadena
Average Annual High75.3
Average Annual Low54.1
Annual Precipitation Days22.7
Average Annual Precipitation16.2
Average Annual Snowfall0.2
75.3°
Average High
22.7
Days of Rain

Rankings for Altadena in California

Locations Around Altadena

Map Of Altadena, CA

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Altadena Demographics And Statistics

Population over time in Altadena

The current population in Altadena is 41,921. The population has decreased -7.8% from 2010.

Year Population % Change
2023 41,921 -1.9%
2022 42,719 -1.5%
2021 43,384 0.8%
2020 43,037 -4.0%
2019 44,850 -0.7%
2018 45,146 -0.2%
2017 45,236 0.5%
2016 45,001 0.9%
2015 44,621 -0.0%
2014 44,622 -0.9%
2013 45,015 1.0%
2012 44,578 -1.0%
2011 45,006 -1.0%
2010 45,446 -

Race / Ethnicity in Altadena

White
41.7% (17,479)
African American
17.6% (7,398)
American Indian
0.1% (60)
Asian
5.3% (2,225)
Hawaiian
0.0% (0)
Other
1.0% (437)
Two Or More
7.0% (2,918)
Hispanic
27.2% (11,404)

Altadena is:

  • 41.7% White with 17,479 White residents.

  • 17.6% African American with 7,398 African American residents.

  • 0.1% American Indian with 60 American Indian residents.

  • 5.3% Asian with 2,225 Asian residents.

  • 0.0% Hawaiian with 0 Hawaiian residents.

  • 1.0% Other with 437 Other residents.

  • 7.0% Two Or More with 2,918 Two Or More residents.

  • 27.2% Hispanic with 11,404 Hispanic residents.

Race Altadena CA USA
White 41.7% 34.6% 58.2%
African American 17.6% 5.3% 12.0%
American Indian 0.1% 0.3% 0.5%
Asian 5.3% 15.1% 5.7%
Hawaiian 0.0% 0.3% 0.2%
Other 1.0% 0.5% 0.5%
Two Or More 7.0% 4.1% 3.9%
Hispanic 27.2% 39.8% 19.0%

Gender in Altadena

Female
53.0% (22,210)
Male
47.0% (19,711)
  • Altadena is 53.0% female with 22,210 female residents.

  • Altadena is 47.0% male with 19,711 male residents.

Gender Altadena CA USA
Female 53.0% 50.0% 50.5%
Male 47.0% 50.0% 49.5%

Highest level of educational attainment in Altadena for adults over 25

  • 5.0% of adults in Altadena completed < 9th grade.

  • 3.0% of adults in Altadena completed 9-12th grade.

  • 15.0% of adults in Altadena completed high school / ged.

  • 16.0% of adults in Altadena completed some college.

  • 9.0% of adults in Altadena completed associate's degree.

  • 27.0% of adults in Altadena completed bachelor's degree.

  • 16.0% of adults in Altadena completed master's degree.

  • 4.0% of adults in Altadena completed professional degree.

  • 5.0% of adults in Altadena completed doctorate degree.

< 9th Grade
5.0% (2,096)
9-12th Grade
3.0% (1,257)
High School / GED
15.0% (6,288)
Some College
16.0% (6,707)
Associate's Degree
9.0% (3,772)
Bachelor's Degree
27.0% (11,318)
Master's Degree
16.0% (6,707)
Professional Degree
4.0% (1,676)
Doctorate Degree
5.0% (2,096)
Education Altadena CA USA
< 9th Grade 5.0% 8.0% 5.0%
9-12th Grade 3.0% 7.0% 6.0%
High School / GED 15.0% 20.0% 26.0%
Some College 16.0% 20.0% 19.0%
Associate's Degree 9.0% 8.0% 9.0%
Bachelor's Degree 27.0% 22.0% 21.0%
Master's Degree 16.0% 10.0% 10.0%
Professional Degree 4.0% 3.0% 2.0%
Doctorate Degree 5.0% 2.0% 2.0%

Household Income For Altadena, California

  • 3.4% of households in Altadena earn Less than $10,000.

  • 0.9% of households in Altadena earn $10,000 to $14,999.

  • 3.9% of households in Altadena earn $15,000 to $24,999.

  • 5.2% of households in Altadena earn $25,000 to $34,999.

  • 6.1% of households in Altadena earn $35,000 to $49,999.

  • 10.6% of households in Altadena earn $50,000 to $74,999.

  • 10.1% of households in Altadena earn $75,000 to $99,999.

  • 16.0% of households in Altadena earn $100,000 to $149,999.

  • 11.2% of households in Altadena earn $150,000 to $199,999.

  • 32.5% of households in Altadena earn $200,000 or more.

Less than $10,000
3.4% (144,035)
$10,000 to $14,999
0.9% (38,241)
$15,000 to $24,999
3.9% (165,249)
$25,000 to $34,999
5.2% (216,890)
$35,000 to $49,999
6.1% (256,249)
$50,000 to $74,999
10.6% (442,992)
$75,000 to $99,999
10.1% (423,173)
$100,000 to $149,999
16.0% (672,444)
$150,000 to $199,999
11.2% (470,627)
$200,000 or more
32.5% (1,362,195)
Income Altadena CA USA
Less than $10,000 3.4% 4.4% 4.9%
$10,000 to $14,999 0.9% 3.0% 3.6%
$15,000 to $24,999 3.9% 5.2% 6.6%
$25,000 to $34,999 5.2% 5.5% 6.8%
$35,000 to $49,999 6.1% 8.4% 10.4%
$50,000 to $74,999 10.6% 13.3% 15.7%
$75,000 to $99,999 10.1% 11.8% 12.7%
$100,000 to $149,999 16.0% 17.9% 17.4%
$150,000 to $199,999 11.2% 11.1% 9.3%
$200,000 or more 32.5% 19.4% 12.6%

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