91901

Zip code 91901: Alpine, California

Q: What city is zip code 91901?

91901 is assigned to Alpine, California. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 91901 in?

91901 is in San Diego County, California.

Q: What is the population of 91901?

About 18,197 people live in 91901, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 91901?

The median household income in 91901 is $114,167.

Q: What zip codes are near 91901?

The closest zip codes to 91901 are 91903, 91916, 91931, 91935, 92019.

Residential delivery areaSan Diego CountyPacific Time

Population

18,197

Median household income

$114K

U.S. $81K

Median home value

$852K

U.S. $333K

Median rent

$2,055/mo

U.S. $1,413

Median age

42.2

U.S. 38.9

Land area

78 sq mi

234 people/sq mi

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

About 91901

91901 is a small-town zip code in Alpine, California (San Diego County), covering 78 sq mi of land. About 18,197 people live here, or 234 per square mile. The median resident is 42.2 years old, compared with 38.9 nationally.

The median household earns $114,167 a year, 41% above the national median of $80,734. 12.4% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $852,000, or 7.5 years of median household income (U.S.: 4.1 years), which makes homes relatively expensive for local earners. 75% of occupied homes are lived in by their owners, and renters pay a median of $2,055 a month.

31% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 32.2 minutes each way, and 15% of workers work from home. The most common jobs among working residents are in management; office and administrative support; and construction and repair.

How 91901 compares

Sorted from highest to lowest national percentile

Median home value$852,000
92nd
U.S. $332,700 · CA $734,700531st of 1,586 in CA
Self-employed workers14.5%
89th
U.S. 10% · CA 11.4%539th of 1,678 in CA
Broadband access96.4%
88th
StrengthU.S. 91% · CA 93.5%363rd of 1,662 in CA
Median gross rent$2,055
86th
U.S. $1,413 · CA $2,036630th of 1,464 in CA
Veterans9%
85th
U.S. 6.2% · CA 4.3%240th of 1,686 in CA
Government workers20.4%
85th
U.S. 14.5% · CA 14.8%401st of 1,678 in CA
Average commute32.2 min
84th
WeaknessU.S. 26.4 min · CA 28.7 min364th of 1,584 in CA
Median household income$114,167
82nd
StrengthU.S. $80,734 · CA $99,122495th of 1,575 in CA
Per capita income$50,579
73rd
U.S. $44,673 · CA $49,513652nd of 1,685 in CA
Median age42.2
73rd
U.S. 38.9 · CA 37.9668th of 1,687 in CA
Median earnings per worker$58,265
73rd
U.S. $49,666 · CA $52,643654th of 1,658 in CA
Rent-burdened renters55.9%
70th
U.S. 51.1% · CA 55.3%761st of 1,610 in CA
Homeownership rate74.8%
66th
U.S. 65.2% · CA 55.9%434th of 1,662 in CA
Work from home15.2%
62nd
U.S. 15.1% · CA 17.2%842nd of 1,680 in CA
Residents 65 and older18%
61st
U.S. 17.2% · CA 15.7%749th of 1,688 in CA
Poverty rate12.4%
58th
U.S. 12.5% · CA 12%678th of 1,666 in CA
Bachelor's degree or higher31.3%
49th
U.S. 35.7% · CA 37.1%846th of 1,687 in CA
Diversity index43.4
41st
U.S. 61.4 · CA 69.71,211th of 1,688 in CA
Foreign-born residents7.1%
39th
U.S. 14.1% · CA 27%1,389th of 1,688 in CA
Tech workers2.1%
35th
U.S. 3.8% · CA 4.4%925th of 1,678 in CA
Residents under 1820.1%
32nd
U.S. 22% · CA 22%931st of 1,688 in CA
Unemployment rate3.8%
30th
U.S. 5.2% · CA 6.6%1,372nd of 1,681 in CA
Income inequality (Gini)0.411
30th
U.S. 0.483 · CA 0.4891,174th of 1,651 in CA
Population18,197
28th
U.S. 334,922,499 · CA 39,287,377852nd of 1,688 in CA
Uninsured rate4.4%
26th
U.S. 8.4% · CA 6.6%1,011th of 1,675 in CA
Population density234/sq mi
23rd
U.S. 95/sq mi · CA 252/sq mi1,088th of 1,688 in CA
Housing vacancy3.7%
18th
U.S. 10.1% · CA 7.5%1,318th of 1,664 in CA
Healthcare workers6.9%
14th
U.S. 9.7% · CA 9.4%1,237th of 1,678 in CA

Measure	91901	San Diego	CA	U.S.	National percentile	Rank in CA
Median home value	$852,000	$854,700	$734,700	$332,700	92nd	531st of 1,586
Self-employed workers	14.5%	11.2%	11.4%	10%	89th	539th of 1,678
Broadband accessStrength	96.4%	94.9%	93.5%	91%	88th	363rd of 1,662
Median gross rent	$2,055	$2,246	$2,036	$1,413	86th	630th of 1,464
Veterans	9%	7.3%	4.3%	6.2%	85th	240th of 1,686
Government workers	20.4%	14.7%	14.8%	14.5%	85th	401st of 1,678
Average commuteWeakness	32.2 min	25.5 min	28.7 min	26.4 min	84th	364th of 1,584
Median household incomeStrength	$114,167	$106,268	$99,122	$80,734	82nd	495th of 1,575
Per capita income	$50,579	$51,976	$49,513	$44,673	73rd	652nd of 1,685
Median age	42.2	37.3	37.9	38.9	73rd	668th of 1,687
Median earnings per worker	$58,265	$56,349	$52,643	$49,666	73rd	654th of 1,658
Rent-burdened renters	55.9%	57.8%	55.3%	51.1%	70th	761st of 1,610
Homeownership rate	74.8%	54.6%	55.9%	65.2%	66th	434th of 1,662
Work from home	15.2%	18.7%	17.2%	15.1%	62nd	842nd of 1,680
Residents 65 and older	18%	15.4%	15.7%	17.2%	61st	749th of 1,688
Poverty rate	12.4%	10.3%	12%	12.5%	58th	678th of 1,666
Bachelor's degree or higher	31.3%	43.2%	37.1%	35.7%	49th	846th of 1,687
Diversity index	43.4	68.1	69.7	61.4	41st	1,211th of 1,688
Foreign-born residents	7.1%	22.8%	27%	14.1%	39th	1,389th of 1,688
Tech workers	2.1%	5.1%	4.4%	3.8%	35th	925th of 1,678
Residents under 18	20.1%	20.9%	22%	22%	32nd	931st of 1,688
Unemployment rate	3.8%	6.1%	6.6%	5.2%	30th	1,372nd of 1,681
Income inequality (Gini)	0.411	0.458	0.489	0.483	30th	1,174th of 1,651
Population	18,197	3,288,774	39,287,377	334,922,499	28th	852nd of 1,688
Uninsured rate	4.4%	6.4%	6.6%	8.4%	26th	1,011th of 1,675
Population density	234/sq mi	781/sq mi	252/sq mi	95/sq mi	23rd	1,088th of 1,688
Housing vacancy	3.7%	6.3%	7.5%	10.1%	18th	1,318th of 1,664
Healthcare workers	6.9%	9.5%	9.4%	9.7%	14th	1,237th of 1,678

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

15%

5–17

18–24

13%

25–34

14%

35–44

14%

45–54

14%

55–64

11%

65–74

75+

Median age

42.2

Under 18

20.1%

65 and over

18%

Race and ethnicity

White73%
Black2%
Hispanic19%
Asian1%
Native American0.7%
Pacific Islander0.3%
Other0.5%
Multiracial4%

Diversity index

43.4

U.S. 61.4

Foreign-born

7.1%

U.S. 14.1%

Born in state

68.5%

Language spoken at home (households)

English only

83%

Spanish

11%

Other Indo-European

Asian / Pacific

Other

0.1%

Households

Households: 6,344
Average household size: 2.8
Family households: 74%
Married couples: 61.8%
Living alone: 18.5%
Veterans (of adults): 9%
Male / female: 50% / 50%

Income and poverty

Household income distribution

<$25k

$25–50k

$50–75k

14%

$75–100k

11%

$100–150k

21%

$150–200k

14%

$200k+

22%

Median household income

91901

$114,167

San Diego Co.

$106,268

California

$99,122

United States

$80,734

Per capita income

$50,579

U.S. $44,673

Poverty rate

12.4%

U.S. 12.5%

Households earning $150K+

36.1%

U.S. 23%

Income inequality (Gini)

0.411

U.S. 0.483

Housing

Median home value

91901

$852,000

San Diego Co.

$854,700

California

$734,700

United States

$332,700

Median gross rent

91901

$2,055

San Diego Co.

$2,246

California

$2,036

United States

$1,413

Types of housing

Single-family

78%

2–4 units

5–19 units

20+ units

Mobile home

Boat, RV, van

0.8%

Housing units: 6,591
Owner-occupied: 74.8%
Vacant: 3.7%
Median year built: 1986
Median rooms: 5.9
Renters paying 30%+ of income: 55.9%
Renters paying 50%+ of income: 28.7%
Home value to income: 7.5× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

75%

Carpooled

Transit

0.3%

Walked

Bicycle

Worked from home

15%

Other

Commute time (one way)

<10 min

10–19

15%

20–29

20%

30–44

33%

45–59

11%

60+

12%

Average commute

32.2 min

U.S. 26.4 min

Unemployment

3.8%

U.S. 5.2%

In labor force

59.5%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

17%

Office and admin

11%

Construction and repair

Cleaning and personal care

Sales

Healthcare

Production

Transportation and moving

Business and finance

Engineering and science

Education

Food service

Police and fire

Legal and social services

Computer and math

Arts, media and sports

Farming, fishing and forestry

Industries

Construction

13%

Retail

12%

Health care and social assistance

10%

Public administration

10%

Education

10%

Manufacturing

10%

Professional and technical services

Finance, insurance and real estate

Other services

Restaurants and hotels

Transportation, warehousing and utilities

Admin, support and management

Arts and recreation

Agriculture and mining

Information

Wholesale

0.4%

Median earnings per worker

$58,265

U.S. $49,666

Self-employed

14.5%

U.S. 10%

Government workers

20.4%

U.S. 14.5%

Nonprofit workers

9.8%

U.S. 8.8%

Median earnings by type of work

Type of work	91901	U.S.
Management, business, science and arts	$93,321	$74,888
Service	$32,671	$26,804
Sales and office	$50,472	$40,476
Construction and maintenance	$55,998	$49,199
Production and transportation	$39,310	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

23%

Some college

29%

Associate's

10%

Bachelor's

23%

Graduate

High school graduate or higher: 93.7%
Bachelor's degree or higher: 31.3%
Graduate or professional degree: 8.5%
Households with broadband: 96.4%
Cable, fiber or DSL: 79.3%
No internet access: 0.5%
Without health insurance: 4.4%
Limited-English households: 2.2%

Geography

City (USPS): Alpine
State: California
County: San Diego County
Center point: 32.8136° N, 116.7270° W
Land area: 78 sq mi
Water area: 0.7 sq mi
Time zone: Pacific Time (UTC-8, UTC-7 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Alpine (unincorporated)34% of zip
Harbison Canyon (unincorporated)2% of zip

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

Zip codes near 91901

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
91903	Alpine, CA · PO box	2.7 mi	—	—	—
91916	Descanso, CA	8.7 mi	1,710	$103,438	$676,800
91931	Guatay, CA	8.7 mi	494	$63,750	—
91935	Jamul, CA	8.7 mi	9,114	$151,538	$902,400
92019	El Cajon, CA	8.7 mi	45,351	$101,973	$801,400
92021	El Cajon, CA	8.7 mi	70,501	$74,013	$611,900
92040	Lakeside, CA	12 mi	46,216	$107,937	$723,200
91917	Dulzura, CA	12 mi	749	—	$564,500
91962	Pine Valley, CA	12 mi	2,574	$143,094	$528,100
91963	Potrero, CA	14 mi	689	—	—
92022	El Cajon, CA · PO box	14 mi	—	—	—
92020	El Cajon, CA	14 mi	57,842	$76,032	$813,100

Zip codes like 91901 elsewhere

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

Questions about 91901

What city is zip code 91901?

91901 is assigned to Alpine, California. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 91901 in?

91901 is in San Diego County, California.

What is the population of 91901?

About 18,197 people live in 91901, according to the Census Bureau's American Community Survey.

What time zone is 91901 in?

91901 is in Pacific Time.

What is the median household income in 91901?

The median household income in 91901 is $114,167.

What zip codes are near 91901?

The closest zip codes to 91901 are 91903, 91916, 91931, 91935, 92019.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 91901, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.