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/SAN-DIMAS

San Dimas ZIP code, California

The ZIP code for San Dimas, CA is 91773.

USPS city name
1 ZIP code
Overlapping the city
4 more
Population
33,789

Mail addressed to San Dimas uses the ZIP code above. 4 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

San Dimas in numbers

About 33,789 people live in San Dimas, in 12,071 households. The median household income is $105,321 a year, 6% above the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $801,800 (9% above the California median), and median gross rent is $2,278 a month. The median age is 43.3; 40.4% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 32 minutes.

Population33,789San Dimas33,789
Households12,071San Dimas12,071
Median age43.3San Dimas43.3California37.9US 38.9
Median household income$105,321San Dimas$105,321California$99,122US $80,734
Median home value$801,800San Dimas$801,800California$734,700US $332,700
Median gross rent$2,278San Dimas$2,278California$2,036US $1,413
Bachelor's degree or higher40.4%San Dimas40.4%California37.1%US 35.7%
Mean commute31.6 minSan Dimas31.6 minCalifornia28.7 minUS 26.4 min
Population density2,248 / sq miSan Dimas2,248 / sq mi

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

ZIP codes addressed as San Dimas

ZIP codes with the USPS city name San Dimas
ZIP City Type Population Median income Median home
91773 San Dimas , CA Standard 33,598 $105,338 $800,700

Other ZIP codes overlapping San Dimas

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

ZIP codes overlapping San Dimas
ZIP City Type Population Median income Median home
91724 Covina , CA Standard 28,352 $103,163 $782,700
91740 Glendora , CA Standard 26,168 $99,083 $787,400
91741 Glendora , CA Standard 26,071 $127,440 $946,900
91750 La Verne , CA Standard 32,692 $104,195 $814,700

Map of San Dimas ZIP codes

91773

The ZIP codes of San Dimas, 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 San Dimas

The nearest larger towns are Glendora (50,926 people, 3.4 mi), Pomona (147,943 people, 4.4 mi) and Covina (49,888 people, 4.4 mi).

Towns near San Dimas
TownPopulationDistance
La Verne 30,600 2.4 mi
Charter Oak 9,442 2.8 mi
Glendora 50,926 3.4 mi
Pomona 147,943 4.4 mi
Covina 49,888 4.4 mi
Citrus 10,904 4.8 mi
Claremont 36,595 5.5 mi
Walnut 27,611 5.6 mi
Azusa 49,031 6.3 mi
Vincent 15,340 6.6 mi
Montclair 37,810 6.8 mi
West Covina 107,037 6.8 mi
Diamond Bar 53,355 7.4 mi
Valinda 20,962 8.4 mi

More nearby: every ZIP code in Los Angeles County · California ZIP codes

Cite this page

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

Underlying data is public domain or openly licensed — sources, vintages and licences.