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ZIP code

91901

Alpine, CA

STANDARD

91901 covers Alpine in San Diego County, with 18,300 people in the ACS 2023 estimate.

Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology

ACS 2023 population

18,300

Median household income

$116,600

Median home value

$804,000

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 91901. Methodology

ZIP code map of 91901

Census ZCTA boundary for ZIP 91901 in Alpine, California
Census ZCTA boundary for ZIP 91901 in Alpine, California. A ZCTA is not the same as a USPS ZIP code. Boundaries: U.S. Census Bureau. Methodology · Data sources
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About ZIP code 91901

Type

STANDARD

City

Alpine

County

San Diego County

Timezone

America/Los_Angeles

Area codes

619, 858

Land area

77.9 sq mi

Water area

0.69 sq mi

Households

6,593

Median gross rent

$2,064

More enterprise fields

Timezone
America/Los_Angeles
Area Codes
619, 858
World Region
NA
Country
US

Commercial ZIP directory · not ACS

Commercial ZIP directory population_count for ZCTA 91901. Not ACS. Methodology

People in 91901

Race

  • White13,242
  • Black or African American268
  • American Indian or Alaska Native561
  • Asian371
  • Native Hawaiian and Pacific Islander57
  • Other race1,116
  • Two or more races2,073

Hispanic or Latino (any race): 3,200

Age

  • Under 102,045
  • 10 to 192,167
  • 20 to 291,783
  • 30 to 392,188
  • 40 to 492,093
  • 50 to 592,549
  • 60 to 692,600
  • 70 to 791,628
  • 80 and older635

Income and housing in 91901

Poverty rate

10.2%

Median earnings

$52,848

Median household income

$116,600

Median home value

$804,000

Median gross rent

$2,064

Education

  • High school graduate95.3%
  • Bachelor's degree30.4%
  • Graduate degree9.8%

Places covering 91901

Cities and places — Population overlap

Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.

ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

Counties — Population overlap

Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.

ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

14.9% of this ZIP is outside city limits (a real overlap row, not missing data).

Population history for 91901

IRS populationACS population
20,16310,081020052023

Hover the chart or read the table below (Year | ACS | IRS).

Population history. Year | ACS population | IRS population. ACS and IRS are separate series. Blank cells mean that source did not publish a count for the year.
YearACS populationIRS population
200513,937
200613,457
200713,990
200813,919
200914,082
201014,111
201116,60614,210
201217,03414,430
201317,12314,640
201418,18414,710
201518,50714,930
201618,58615,030
201718,23815,280
201818,55815,310
201918,16215,670
202017,89615,760
202118,36715,660
202218,66915,720
202318,300

ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.

ZIP codes near 91901

12 nearest ZIP centroids (any distance)

  1. 91931Guatay8.7 miPop 735 · Income $49,808
  2. 91916Descanso8.7 miPop 1,757 · Income $110,833
  3. 92021El Cajon8.7 miPop 69,306 · Income $69,979
  4. 91935Jamul8.7 miPop 9,466 · Income $138,953
  5. 92019El Cajon8.7 miPop 45,801 · Income $99,266
  6. 92040Lakeside11.6 miPop 45,978 · Income $103,585
  7. 91917Dulzura12.0 miPop 889 · Income $157,941
  8. 91962Pine Valley12.2 miPop 2,457 · Income $140,270
  9. 91963Potrero13.7 miPop 617 · Income $25,208
  10. 92020El Cajon14.2 miPop 58,490 · Income $72,822
  11. 91978Spring Valley14.3 miPop 10,511 · Income $111,506
  12. 91948Mount Laguna15.2 miPop 123 · Income —

ZIP centroids within 2 miles

No other ZIP codes within 2 miles of 91901, measured by Census internal-point centroids. Try a wider radius.

ZIPs within 2 miles of this place

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91901 Alpine, CA

Looking up ZIP codes within 2 miles of 91901 Alpine, CA, measured by centroid distance.

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ZIP code 91901 FAQ

What city is ZIP code 91901 in?
91901 is in Alpine, CA.
What county is 91901 in?
91901 is in San Diego County.
What is the median household income in 91901?
The median household income in 91901 is $116,600.
Which ZIP codes are near 91901?
Use the radius tool on this page to list ZIP codes within a chosen distance of 91901.