Zip Code 91737
Rancho Cucamonga, California — San Bernardino County
📍 ZIP code 91737 is in Rancho Cucamonga, San Bernardino County, California.
ZIP code 91737 is located in Rancho Cucamonga, San Bernardino County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 22,797. The area code for ZIP code 91737 is 805.
Quick Answer
Zip code 91737 is in Rancho Cucamonga, California (San Bernardino County). It has a population of 22,797, median household income of $116,903, and median home value of $843,500.
Population
22,797
Income
$116,903
Home Value
$843,500
Climate
94°F / 45°F
About Zip Code 91737
Zip code 91737 is located in Rancho Cucamonga, California, within San Bernardino County. Home to approximately 22,797 residents, this area sits at an elevation of 1873 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 805.
The median household income is $116,903 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $843,500, and the cost of living index is 226 (126% above the national average of 100).
Summers average a high of 94°F while winters drop to 45°F. The area receives about 12 in of rain annually. The zip code covers 8.4 square miles of land area.
Key Statistics
22,797
$116,903
$843,500
Pacific (PST/PDT)
805
1873 ft
8.4 sq mi
44.3
8,159
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Compare With Nearby Zip Codes
| Metric | 91737 | 91701 | 91739 | 91730 | 91784 | 91764 |
|---|---|---|---|---|---|---|
| City | Rancho Cucamonga, CA | Rancho Cucamonga, CA | Rancho Cucamonga, CA | Rancho Cucamonga, CA | Upland, CA | Ontario, CA |
| Population | 22,797 | 38,597 | 41,722 | 71,692 | 26,900 | 55,412 |
| Median Income | $116,903 | $113,576 | $141,475 | $89,654 | $157,118 | $75,605 |
| Home Value | $843,500 | $718,800 | $860,200 | $595,400 | $853,900 | $524,100 |
| Cost of Living | 226 | 202 | 245 | 165 | 249 | 140 |
| Median Age | 44.3 | 42.1 | 37.2 | 34.8 | 46 | 31.9 |
Cost of Living
100 = National Average. Rancho Cucamonga's cost of living is 126% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
7.2x
Demographics
Zip code 91737 has a population of 22,797 people with a median age of 44.3. There are 8,159 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Rancho Cucamonga (91737) population trend from 2010 to 2024
↓ -12.4%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
94°F
45°F
12 in
0 in
Rancho Cucamonga experiences hot summers with average highs around 94°F. Winters are mild with lows averaging 45°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$843,500
Median Household Income
$116,903
With 8,159 housing units across 8.4 square miles, 91737 has a housing density of 971 units per square mile. The home price-to-income ratio is 7.2x.
Location & Geography
Latitude
34.1526°
Longitude
-117.5777°
Land Area
8.4 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 91737 (Rancho Cucamonga, CA) with distances:
All Zip Codes in Rancho Cucamonga, CA
Other zip codes serving Rancho Cucamonga:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 91737's $116,903. A way to compare Rancho Cucamonga 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 91737 (Rancho Cucamonga, 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 Rancho Cucamonga, California?
Rancho Cucamonga, California uses zip code 91737 along with 3 other zip codes.
What county is zip code 91737 in?
Zip code 91737 is located in San Bernardino County, California.
What is the population of zip code 91737?
The population of zip code 91737 is 22,797 with a median age of 44.3.
Is 91737 in Rancho Cucamonga, California?
Yes, zip code 91737 is in Rancho Cucamonga, San Bernardino County, California. The area code is 805.
Frequently Asked Questions
What city is zip code 91737 in?
Zip code 91737 is in Rancho Cucamonga, California. It is part of San Bernardino County and uses the Pacific (PST/PDT) timezone.
What is zip code 91737?
Zip code 91737 is a U.S. postal code in Rancho Cucamonga, California (San Bernardino County). It has a population of 22,797 and covers 8.4 square miles.
What is the population of zip code 91737?
The population of zip code 91737 (Rancho Cucamonga, CA) is 22,797 with a median age of 44.3. There are approximately 8,159 housing units in this area.
What is the median income in zip code 91737?
The median household income in zip code 91737 (Rancho Cucamonga, CA) is $116,903 per year. The cost of living index is 226 (100 = national average).
What is the average home price in zip code 91737?
The median home value in zip code 91737 (Rancho Cucamonga, CA) is $843,500. The cost of living index is 226 compared to the national average of 100.
What county is zip code 91737 in?
Zip code 91737 is located in San Bernardino County, California. The primary city is Rancho Cucamonga.
What is the area code for zip code 91737?
Zip code 91737 in Rancho Cucamonga, CA uses area code 805. It is located in the Pacific (PST/PDT) timezone.
Is zip code 91737 a good place to live?
Zip code 91737 (Rancho Cucamonga, CA) has a cost of living index of 226 (100 = national average), a median household income of $116,903, and median home values of $843,500. The median age is 44.3. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 91737?
The cost of living index for zip code 91737 (Rancho Cucamonga, CA) is 226, where 100 represents the national average. This area is above the national average. Median home value: $843,500.
What schools serve zip code 91737?
Zip code 91737 in Rancho Cucamonga, California is served by the local school district of San Bernardino 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.