Altadena, CA Profile: Facts & Data


Altadena Local Links & Resources:
Hotels | Resources | ALL Altadena Content

Also See: Altadena, CA ZIP Codes & ZIP Code Maps | Local Area Photos

Altadena, California - Basic Facts

The Altadena Census Designated Place had a population of 43,522 as of July 1, 2018. Altadena ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in California. See peer rankings below.

The primary coordinate point for Altadena is located at latitude 34.1897 and longitude -118.1312 in Los Angeles County. The formal boundaries for the Altadena Census Designated Place encompass a land area of 8.71 sq. miles and a water area of 0.02 sq. miles. Los Angeles County is in the Pacific time zone (GMT -8). The elevation is 1,358 feet.

The Altadena Census Designated Place (GNIS ID: 2407732) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

California is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Altadena Census Designated Place is located within Pasadena CCD of Los Angeles County.

Jump to... (On This Page!)
  1. Altadena 2018 Demographic Data
  2. Growth Rates for Altadena (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. California Research Tools (Easy Tools & Current Data)
  3. California Data Comparison Tool - 2018 Demographics

Altadena, CA - Most Popular Things to Do

Also See: Nearby Photos | Nearby Hotels | Driving Directions

Research a California Address and get...

Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Altadena, CA Data & Demographics (As of July 1, 2018)


Total Population 43,522
Population in Households 43,009
Population in Familes 35,857
Population in Group Qrtrs 513
Population Density2 4,995
Diversity Index3 81


Median Household Income $97,631
Average Household Income $132,969
Per Capita Income $47,376


Total Housing Units 16,303 (100%)
Owner Occupied HU 10,788 (66.2%)
Renter Occupied HU 4,583 (28.1%)
Vacant Housing Units 932 ( 5.7%)
Median Home Value $748,840
Average Home Value $850,955


Total Households 15,371
Average Household Size 2.8
Family Households 10,883
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2018 2018-2023
Population 0.21% 0.23%
Households 0.13% 0.14%
Families 0.2% 0.21%
Median Household Income   2.42%
Per Capita Income   3.07%

Altadena, CA - Peer Comparisons by Rank and Percentile

The table below compares Altadena to the other 1,516 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 211 86th
Population Density # 247 84th
Diversity Index # 335 78th
Median Household Income # 235 85th
Per Capita Income # 295 81st

Additional comparisons and rankings can be made with a VERY EASY TO USE California Census Data Comparison Tool.

Quick & Easy Ways to...

  1. Get Current Demographic Data for Cities, Towns, and ZIP Codes
  2. View Boundary Maps, for Cities, Towns, and ZIP Codes
  3. Locate Physical, Cultural, and Historical Features
  4. Research Public Schools & Attendance Zones

California Census Data Comparison Tool

Compare California July 1, 2018 Data
Highest or Lowest: