Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/CA/RANCHO-SAN-DIEGO

Rancho San Diego ZIP codes, California

No ZIP code is named for Rancho San Diego, CA; addresses there use a neighbouring town's name. 3 ZIP codes cover it: 92020, 92019 and 91941. Its area codes are 619 and 858.

USPS city name
0 ZIP codes
Overlapping the city
3 more
Population
21,272
Area codes
619, 858

NANPA lists no telephone rate centre for Rancho San Diego itself, so these are the area codes of the nearest one, El Cajon (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Rancho San Diego in numbers

About 21,272 people live in Rancho San Diego, in 7,813 households. The median household income is $118,682 a year, 20% above the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $905,300 (23% above the California median), and median gross rent is $2,618 a month. The median age is 44.2; 45.7% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 28 minutes.

Population21,272Rancho San Diego21,272
Households7,813Rancho San Diego7,813
Median age44.2Rancho San Diego44.2California37.9US 38.9
Median household income$118,682Rancho San Diego$118,682California$99,122US $80,734
Median home value$905,300Rancho San Diego$905,300California$734,700US $332,700
Median gross rent$2,618Rancho San Diego$2,618California$2,036US $1,413
Bachelor's degree or higher45.7%Rancho San Diego45.7%California37.1%US 35.7%
Mean commute28.2 minRancho San Diego28.2 minCalifornia28.7 minUS 26.4 min
Population density2,446 / sq miRancho San Diego2,446 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Rancho San Diego CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering Rancho San Diego

These ZIP codes cover part of Rancho San Diego but are addressed as somewhere else.

ZIP codes overlapping Rancho San Diego
ZIP City Type Population Median income Median home
91941 La Mesa , CA Standard 33,218 $115,381 $928,700
92019 El Cajon , CA Standard 45,351 $101,973 $801,400
92020 El Cajon , CA Standard 57,842 $76,032 $813,100

Map of Rancho San Diego ZIP codes

919419201992020

The ZIP codes of Rancho San Diego, CA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Rancho San Diego

The nearest larger towns are El Cajon (104,449 people, 3.6 mi), Spring Valley (31,969 people, 4.0 mi) and Winter Gardens (22,131 people, 5.2 mi).

Towns near Rancho San Diego
TownPopulationDistance
Casa de Oro-Mount Helix 19,765 2.9 mi
Granite Hills 3,795 2.9 mi
El Cajon 104,449 3.6 mi
Spring Valley 31,969 4.0 mi
Crest 2,775 4.0 mi
Bostonia 16,765 4.1 mi
Jamul 6,574 4.2 mi
Winter Gardens 22,131 5.2 mi
La Mesa 60,797 6.0 mi
La Presa 34,962 6.0 mi
Harbison Canyon 4,328 6.5 mi
Lakeside 22,447 6.6 mi
Lemon Grove 27,686 7.0 mi
Santee 59,332 7.5 mi

More nearby: every ZIP code in San Diego County · California ZIP codes

Cite this page

zipcodes.pro. “Rancho San Diego, CA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ca/rancho-san-diego

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