Zip Code 91773
San Dimas, California — Los Angeles County
📍 ZIP code 91773 is in San Dimas, Los Angeles County, California.
ZIP code 91773 is located in San Dimas, Los Angeles County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 33,917. The area code for ZIP code 91773 is 805.
Quick Answer
Zip code 91773 is in San Dimas, California (Los Angeles County). It has a population of 33,917, median household income of $105,926, and median home value of $754,700.
Population
33,917
Income
$105,926
Home Value
$754,700
Climate
90°F / 43°F
About Zip Code 91773
Zip code 91773 is located in San Dimas, California, within Los Angeles County. Home to approximately 33,917 residents, this area sits at an elevation of 965 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 805.
The median household income is $105,926 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $754,700, and the cost of living index is 207 (107% above the national average of 100).
Summers average a high of 90°F while winters drop to 43°F. The area receives about 14 in of rain annually. The zip code covers 14.3 square miles of land area and 0.4 square miles of water.
Key Statistics
33,917
$105,926
$754,700
Pacific (PST/PDT)
805
965 ft
14.3 sq mi
42.7
12,363
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Compare With Nearby Zip Codes
| Metric | 91773 | 91740 | 91724 | 91768 | 91741 | 91767 |
|---|---|---|---|---|---|---|
| City | San Dimas, CA | Glendora, CA | Covina, CA | Pomona, CA | Glendora, CA | Pomona, CA |
| Population | 33,917 | 26,160 | 28,113 | 34,921 | 26,166 | 50,308 |
| Median Income | $105,926 | $98,819 | $102,129 | $76,313 | $127,063 | $80,201 |
| Home Value | $754,700 | $702,000 | $722,600 | $536,500 | $923,700 | $585,100 |
| Cost of Living | 207 | 190 | 194 | 142 | 250 | 158 |
| Median Age | 42.7 | 38.7 | 39.1 | 32.4 | 42.4 | 36.2 |
Cost of Living
100 = National Average. San Dimas's cost of living is 107% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
7.1x
Demographics
Zip code 91773 has a population of 33,917 people with a median age of 42.7. There are 12,363 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
San Dimas (91773) population trend from 2010 to 2024
↓ -17.8%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
90°F
43°F
14 in
0 in
San Dimas experiences hot summers with average highs around 90°F. Winters are mild with lows averaging 43°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$754,700
Median Household Income
$105,926
With 12,363 housing units across 14.3 square miles, 91773 has a housing density of 865 units per square mile. The home price-to-income ratio is 7.1x.
Location & Geography
Latitude
34.1102°
Longitude
-117.8104°
Land Area
14.3 sq mi
Water Area
0.4 sq mi
Nearby Zip Codes
Zip codes closest to 91773 (San Dimas, CA) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 91773's $105,926. A way to compare San Dimas to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 91773 (San Dimas, CA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is San Dimas, California?
San Dimas, California uses zip code 91773.
What county is zip code 91773 in?
Zip code 91773 is located in Los Angeles County, California.
What is the population of zip code 91773?
The population of zip code 91773 is 33,917 with a median age of 42.7.
Is 91773 in San Dimas, California?
Yes, zip code 91773 is in San Dimas, Los Angeles County, California. The area code is 805.
Frequently Asked Questions
What city is zip code 91773 in?
Zip code 91773 is in San Dimas, California. It is part of Los Angeles County and uses the Pacific (PST/PDT) timezone.
What is zip code 91773?
Zip code 91773 is a U.S. postal code in San Dimas, California (Los Angeles County). It has a population of 33,917 and covers 14.3 square miles.
What is the population of zip code 91773?
The population of zip code 91773 (San Dimas, CA) is 33,917 with a median age of 42.7. There are approximately 12,363 housing units in this area.
What is the median income in zip code 91773?
The median household income in zip code 91773 (San Dimas, CA) is $105,926 per year. The cost of living index is 207 (100 = national average).
What is the average home price in zip code 91773?
The median home value in zip code 91773 (San Dimas, CA) is $754,700. The cost of living index is 207 compared to the national average of 100.
What county is zip code 91773 in?
Zip code 91773 is located in Los Angeles County, California. The primary city is San Dimas.
What is the area code for zip code 91773?
Zip code 91773 in San Dimas, CA uses area code 805. It is located in the Pacific (PST/PDT) timezone.
Is zip code 91773 a good place to live?
Zip code 91773 (San Dimas, CA) has a cost of living index of 207 (100 = national average), a median household income of $105,926, and median home values of $754,700. The median age is 42.7. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 91773?
The cost of living index for zip code 91773 (San Dimas, CA) is 207, where 100 represents the national average. This area is above the national average. Median home value: $754,700.
What schools serve zip code 91773?
Zip code 91773 in San Dimas, California is served by the local school district of Los Angeles County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.