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Altadena, CA
Census-designated place in Los Angeles County, California. ZIP codes: 91001, 91104.
Population
41,705
Land area
8.5sq mi
People per sq mi
4,927
ZIP codes
2
Altadena and its ZIP codes
Altadena at a glance
- Altadena is about 20 times as dense as California as a whole.
- By population, it ranks 217th among 1,570 cities and towns in California.
- The median household income is $128,720, 30% above the California median of $99,122.
- A typical owner-occupied home is valued at $1,120,000 (52% above California) and median rent is $2,355 a month.
Local data for Altadena, CA
Counts from official public data
Housing and community stats
Altadena, CA, American Community Survey 2020-2024
Median household income
$128,720
Poverty rate
7.9%
Median home value
$1,120,000
Median rent
$2,355/mo
Homeownership
76.9%
Bachelor's or higher
53.3%
Median age
46.4
Average commute
27.5 min
Largest reported origins and ancestries: Mexican Americans (8,049), German Americans (3,170), Irish Americans (3,135).
Economy and federal money
Jobs, pay, income and spending are for Los Angeles County. PPP loans are for Altadena.
Unemployment rate
4.5%
Sep 2026, -1.4 pts in a year
Average annual pay
$86,080
4,525,460 jobs, 2025
Income per person
$83,888
BEA, 2024
Federal spending
$72.1B
FY 2026, $7,195 per person
PPP loans
$60.9M
1,406 loans, 6,363 jobs reported
How people get to work
Altadena, CA, workers 16 and older. American Community Survey 5-year estimates
- Drove alone62.3%
- Carpooled6.4%
- Public transit1.5%
- Walked0.7%
- Bicycle0.6%
- Taxi, ride-hailing, motorcycle or other3.0%
- Worked from home25.4%
Average one-way commute: 27.5 minutes for people who do not work from home.
Environment and hazard risk
Altadena, CA, from FEMA, NOAA and EPA
Natural hazard risk
Very High
Top: earthquake
Storm events since 1996
662
Countywide, mostly flash flood
Flood insurance policies
10,584
0.5% of homes, county
July high / Jan low
89° / 46°F
20.1 inches of rain a year
Hazards, floods and storm historyCheck a flood zone10 historic places
Health statistics
Share of adults in Altadena, CA, CDC PLACES estimates
Obesity
25.4%
U.S. 33.3% -7.9 pts
Diabetes
11.3%
U.S. 12.1% -0.8 pts
Smoking
8.7%
U.S. 12.8% -4.1 pts
Uninsured (18-64)
6.5%
U.S. 11.1% -4.6 pts
ZIP codes in Altadena
2 in or overlapping Altadena. Population shown
Cities near Altadena
| Name | Distance | Land area (sq mi) |
|---|---|---|
| PasadenaCity | 2.1 mi | 23 |
| La Cañada FlintridgeCity | 3.7 mi | 8.6 |
| San PasqualCensus-designated place | 4.2 mi | 0.3 |
| East PasadenaCensus-designated place | 5.1 mi | 1.3 |
| San MarinoCity | 5.2 mi | 3.8 |
| Sierra MadreCity | 5.3 mi | 3 |
| South PasadenaCity | 5.7 mi | 3.4 |
| East San GabrielCensus-designated place | 6.1 mi | 2.2 |
| GlendaleCity | 6.2 mi | 30.5 |
| La Crescenta-MontroseCensus-designated place | 6.3 mi | 3.4 |
| ArcadiaCity | 6.8 mi | 10.9 |
| San GabrielCity | 7.3 mi | 4.1 |
| AlhambraCity | 7.4 mi | 7.6 |
| Temple CityCity | 7.8 mi | 4 |
| MonroviaCity | 8.4 mi | 13.6 |
| Mayflower VillageCensus-designated place | 9 mi | 0.7 |
Frequently asked questions
- What county is Altadena, CA in?
- Altadena is in Los Angeles County, California.
- What ZIP codes are in Altadena, CA?
- ZIP codes in or overlapping Altadena include 91001, 91104.
- What is the population of Altadena, CA?
- About 41,705 people live in Altadena, based on American Community Survey 5-year estimates.
- What cities are near Altadena?
- Nearby places include Pasadena (2.1 mi), La Cañada Flintridge (3.7 mi), San Pasqual (4.2 mi), East Pasadena (5.1 mi), San Marino (5.2 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023