Zip code 91001: Altadena, California

Q: What city is zip code 91001?

91001 is assigned to Altadena, California. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 91001 in?

91001 is in Los Angeles County, California.

Q: What is the population of 91001?

About 35,475 people live in 91001, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 91001?

The median household income in 91001 is $134,903.

Q: What zip codes are near 91001?

The closest zip codes to 91001 are 91003, 91104, 91103, 91012, 91102.

Residential delivery areaLos Angeles CountyPacific Time

Population

35,475

Median household income

$135K

U.S. $81K

Median home value

$1.1M

U.S. $333K

Median rent

$2,437/mo

U.S. $1,413

Median age

46.3

U.S. 38.9

Land area

8.3 sq mi

4,295 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 91001

91001 is an urban zip code in Altadena, California (Los Angeles County), covering 8.3 sq mi of land. About 35,475 people live here, or 4,295 per square mile. The median resident is 46.3 years old, compared with 38.9 nationally.

The median household earns $134,903 a year, 67% above the national median of $80,734. 7.4% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $1,135,200, or 8.4 years of median household income (U.S.: 4.1 years), which makes homes relatively expensive for local earners. 80% of occupied homes are lived in by their owners, and renters pay a median of $2,437 a month.

54% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 28 minutes each way, and 25% of workers work from home. The most common jobs among working residents are in management; cleaning and personal care; and healthcare. 20% of them are self-employed (U.S.: 10%). 34% of households speak a language other than English at home, most often Spanish.

How 91001 compares

Sorted from highest to lowest national percentile

Median home value$1,135,200
97th
U.S. $332,700 · CA $734,700287th of 1,586 in CA
Diversity index73.3
97th
U.S. 61.4 · CA 69.763rd of 1,688 in CA
Self-employed workers19.5%
97th
U.S. 10% · CA 11.4%264th of 1,678 in CA
Rent-burdened renters67.1%
95th
WeaknessU.S. 51.1% · CA 55.3%195th of 1,610 in CA
Median gross rent$2,437
94th
U.S. $1,413 · CA $2,036347th of 1,464 in CA
Median household income$134,903
91st
StrengthU.S. $80,734 · CA $99,122296th of 1,575 in CA
Per capita income$68,163
91st
StrengthU.S. $44,673 · CA $49,513328th of 1,685 in CA
Median age46.3
89th
U.S. 38.9 · CA 37.9393rd of 1,687 in CA
Work from home25.4%
89th
U.S. 15.1% · CA 17.2%391st of 1,680 in CA
Median earnings per worker$68,420
86th
StrengthU.S. $49,666 · CA $52,643411th of 1,658 in CA
Income inequality (Gini)0.487
84th
WeaknessU.S. 0.483 · CA 0.489339th of 1,651 in CA
Bachelor's degree or higher53.9%
83rd
StrengthU.S. 35.7% · CA 37.1%364th of 1,687 in CA
Unemployment rate7.4%
83rd
WeaknessU.S. 5.2% · CA 6.6%575th of 1,681 in CA
Residents 65 and older22%
83rd
U.S. 17.2% · CA 15.7%486th of 1,688 in CA
Homeownership rate79.9%
78th
U.S. 65.2% · CA 55.9%294th of 1,662 in CA
Population density4,295/sq mi
77th
U.S. 95/sq mi · CA 252/sq mi511th of 1,688 in CA
Government workers18%
76th
U.S. 14.5% · CA 14.8%553rd of 1,678 in CA
Foreign-born residents20%
74th
U.S. 14.1% · CA 27%805th of 1,688 in CA
Broadband access94.4%
70th
U.S. 91% · CA 93.5%665th of 1,662 in CA
Average commute28 min
63rd
U.S. 26.4 min · CA 28.7 min776th of 1,584 in CA
Population35,475
59th
U.S. 334,922,499 · CA 39,287,377477th of 1,688 in CA
Tech workers3%
52nd
U.S. 3.8% · CA 4.4%668th of 1,678 in CA
Healthcare workers9.3%
47th
U.S. 9.7% · CA 9.4%726th of 1,678 in CA
Housing vacancy4.8%
31st
U.S. 10.1% · CA 7.5%1,114th of 1,664 in CA
Poverty rate7.4%
28th
U.S. 12.5% · CA 12%1,192nd of 1,666 in CA
Residents under 1819.6%
28th
U.S. 22% · CA 22%980th of 1,688 in CA
Veterans3.8%
24th
U.S. 6.2% · CA 4.3%952nd of 1,686 in CA
Uninsured rate3.4%
16th
StrengthU.S. 8.4% · CA 6.6%1,197th of 1,675 in CA

Measure	91001	Los Angeles	CA	U.S.	National percentile	Rank in CA
Median home value	$1,135,200	$834,200	$734,700	$332,700	97th	287th of 1,586
Diversity index	73.3	67.5	69.7	61.4	97th	63rd of 1,688
Self-employed workers	19.5%	13.5%	11.4%	10%	97th	264th of 1,678
Rent-burdened rentersWeakness	67.1%	57.7%	55.3%	51.1%	95th	195th of 1,610
Median gross rent	$2,437	$1,954	$2,036	$1,413	94th	347th of 1,464
Median household incomeStrength	$134,903	$90,112	$99,122	$80,734	91st	296th of 1,575
Per capita incomeStrength	$68,163	$45,792	$49,513	$44,673	91st	328th of 1,685
Median age	46.3	38.2	37.9	38.9	89th	393rd of 1,687
Work from home	25.4%	17.1%	17.2%	15.1%	89th	391st of 1,680
Median earnings per workerStrength	$68,420	$48,343	$52,643	$49,666	86th	411th of 1,658
Income inequality (Gini)Weakness	0.487	0.498	0.489	0.483	84th	339th of 1,651
Bachelor's degree or higherStrength	53.9%	36%	37.1%	35.7%	83rd	364th of 1,687
Unemployment rateWeakness	7.4%	7.3%	6.6%	5.2%	83rd	575th of 1,681
Residents 65 and older	22%	15.2%	15.7%	17.2%	83rd	486th of 1,688
Homeownership rate	79.9%	45.9%	55.9%	65.2%	78th	294th of 1,662
Population density	4,295/sq mi	2,416/sq mi	252/sq mi	95/sq mi	77th	511th of 1,688
Government workers	18%	13%	14.8%	14.5%	76th	553rd of 1,678
Foreign-born residents	20%	33.4%	27%	14.1%	74th	805th of 1,688
Broadband access	94.4%	93%	93.5%	91%	70th	665th of 1,662
Average commute	28 min	30.4 min	28.7 min	26.4 min	63rd	776th of 1,584
Population	35,475	9,808,667	39,287,377	334,922,499	59th	477th of 1,688
Tech workers	3%	2.8%	4.4%	3.8%	52nd	668th of 1,678
Healthcare workers	9.3%	9.5%	9.4%	9.7%	47th	726th of 1,678
Housing vacancy	4.8%	6.4%	7.5%	10.1%	31st	1,114th of 1,664
Poverty rate	7.4%	13.7%	12%	12.5%	28th	1,192nd of 1,666
Residents under 18	19.6%	20.6%	22%	22%	28th	980th of 1,688
Veterans	3.8%	2.7%	4.3%	6.2%	24th	952nd of 1,686
Uninsured rateStrength	3.4%	8.2%	6.6%	8.4%	16th	1,197th of 1,675

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

14%

5–17

18–24

10%

25–34

13%

35–44

15%

45–54

15%

55–64

11%

65–74

11%

75+

Median age

46.3

Under 18

19.6%

65 and over

22%

Race and ethnicity

White37%
Black20%
Hispanic29%
Asian6%
Native American0.1%
Pacific Islander0.0%
Other0.8%
Multiracial7%

Diversity index

73.3

U.S. 61.4

Foreign-born

20%

U.S. 14.1%

Born in state

56.2%

Language spoken at home (households)

English only

66%

Spanish

22%

Other Indo-European

Asian / Pacific

Other

Households

Households: 12,587
Average household size: 2.8
Family households: 72.3%
Married couples: 50.7%
Living alone: 21%
Veterans (of adults): 3.8%
Male / female: 49% / 51%

Income and poverty

Household income distribution

<$25k

$25–50k

12%

$50–75k

10%

$75–100k

10%

$100–150k

16%

$150–200k

11%

$200k+

33%

Median household income

91001

$134,903

Los Angeles Co.

$90,112

California

$99,122

United States

$80,734

Per capita income

$68,163

U.S. $44,673

Poverty rate

7.4%

U.S. 12.5%

Households earning $150K+

44.2%

U.S. 23%

Income inequality (Gini)

0.487

U.S. 0.483

Housing

Median home value

91001

$1,135,200

Los Angeles Co.

$834,200

California

$734,700

United States

$332,700

Median gross rent

91001

$2,437

Los Angeles Co.

$1,954

California

$2,036

United States

$1,413

Types of housing

Single-family

94%

2–4 units

5–19 units

0.8%

20+ units

Mobile home

Boat, RV, van

Housing units: 13,216
Owner-occupied: 79.9%
Vacant: 4.8%
Median year built: 1946
Median rooms: 5.9
Renters paying 30%+ of income: 67.1%
Renters paying 50%+ of income: 32.3%
Home value to income: 8.4× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

61%

Carpooled

Transit

Walked

0.8%

Bicycle

0.7%

Worked from home

25%

Other

Commute time (one way)

<10 min

10–19

31%

20–29

20%

30–44

24%

45–59

60+

Average commute

28 min

U.S. 26.4 min

Unemployment

7.4%

U.S. 5.2%

In labor force

64.2%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

17%

Cleaning and personal care

10%

Healthcare

Education

Arts, media and sports

Sales

Office and admin

Business and finance

Legal and social services

Engineering and science

Construction and repair

Transportation and moving

Computer and math

Food service

Production

Police and fire

Farming, fishing and forestry

0.1%

Industries

Education

15%

Professional and technical services

13%

Health care and social assistance

13%

Finance, insurance and real estate

Information

Other services

Retail

Admin, support and management

Public administration

Arts and recreation

Manufacturing

Transportation, warehousing and utilities

Restaurants and hotels

Construction

Wholesale

Agriculture and mining

0.3%

Median earnings per worker

$68,420

U.S. $49,666

Self-employed

19.5%

U.S. 10%

Government workers

18%

U.S. 14.5%

Nonprofit workers

15.4%

U.S. 8.8%

Median earnings by type of work

Type of work	91001	U.S.
Management, business, science and arts	$102,857	$74,888
Service	$25,567	$26,804
Sales and office	$57,321	$40,476
Construction and maintenance	$49,375	$49,199
Production and transportation	$43,068	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

14%

Some college

16%

Associate's

Bachelor's

28%

Graduate

26%

High school graduate or higher: 92.1%
Bachelor's degree or higher: 53.9%
Graduate or professional degree: 26.2%
Households with broadband: 94.4%
Cable, fiber or DSL: 82.5%
No internet access: 2.5%
Without health insurance: 3.4%
Limited-English households: 2.2%

Geography

City (USPS): Altadena
State: California
County: Los Angeles County
Center point: 34.1945° N, 118.1383° W
Land area: 8.3 sq mi
Water area: under 0.1 sq mi
Time zone: Pacific Time (UTC-8, UTC-7 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Altadena (unincorporated)94% of zip
Pasadena4% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 91001

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
91003	Altadena, CA · PO box	0.5 mi	—	—	—
91104	Pasadena, CA	2.2 mi	35,937	$105,958	$1,080,100
91103	Pasadena, CA	2.4 mi	25,142	$93,660	$983,300
91012	La Canada Flintridge, CA · PO box	2.9 mi	—	—	—
91102	Pasadena, CA · PO box	3.2 mi	—	—	—
91109	Pasadena, CA · PO box	3.2 mi	—	—	—
91110	Pasadena, CA · PO box	3.2 mi	—	—	—
91114	Pasadena, CA · PO box	3.2 mi	—	—	—
91115	Pasadena, CA · PO box	3.2 mi	—	—	—
91116	Pasadena, CA · PO box	3.2 mi	—	—	—
91117	Pasadena, CA · PO box	3.2 mi	—	—	—
91121	Pasadena, CA · PO box	3.2 mi	—	—	—

Zip codes like 91001 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 91001

What city is zip code 91001?

91001 is assigned to Altadena, California. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 91001 in?

91001 is in Los Angeles County, California.

What is the population of 91001?

About 35,475 people live in 91001, according to the Census Bureau's American Community Survey.

What time zone is 91001 in?

91001 is in Pacific Time.

What is the median household income in 91001?

The median household income in 91001 is $134,903.

What zip codes are near 91001?

The closest zip codes to 91001 are 91003, 91104, 91103, 91012, 91102.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 91001, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.