PlainZIP

Rancho Cucamonga, CA · standard

ZIP Code 91737

San Bernardino County, California - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

24,740
1,140/sq mi
$122,334
Median income
$878,400
Median home value
41.4%
Bachelor's or higher

The verdict

Rancho Cucamonga pairs a top-decile household income with top-decile home values, in a low-density, homeowner-dominated area.

Top 9%
household income, US ZIPs
Top 3%
home value, US ZIPs
1,140
people per sq mi
71%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 91737 against every reporting US ZIP.

ZIP code 91737 is a densely settled ZIP (a standard USPS delivery area) in Rancho Cucamonga, San Bernardino County, California, with 24,740 residents across 21.7 square miles, a density of 1,140 people per square mile, in the Los Angeles time zone.

ZIP 91737 skews affluent, with a median household income of $122,334 (20% above the California average), while per-capita income is $58,193. The poverty rate stands at 8.6% and the unemployment rate at 6.4%. Median home value sits at $878,400 (14% above the state average), median rent at $2,371 a month, and owner-occupancy at 71.1%.

A solid share of residents have a four-year degree: 41.4% of adults hold a bachelor's degree or higher, the median age is 44.8, and the average commute is 32 minutes. Beyond these figures, 10 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing San Bernardino County, letting you compare 91737 to its immediate surroundings rather than a national baseline alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 91737

Top 5 sectors by establishment count in Rancho Cucamonga, CA

Which industries have the most business establishments in ZIP 91737.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 91737, Rancho Cucamonga, CA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

24,740

Population

21.7

Area (sq mi)

1,140

People / sq mi

Los Angeles

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 91737?

44.8

Median Age

48.9%

Male

51.1%

Female

18.5%

Foreign-Born

White 47.3%
African American 6.6%
Asian 14.4%
American Indian or Alaska Native 0.8%
Native Hawaiian or Pacific Islander 0.1%
Two or More Ethnicities 19.1%
Hispanic or Latino 32.8%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$122,334

Median Household Income

+20% vs state

$58,193

Per Capita Income

8.6%

Poverty Rate

6.4%

Unemployment Rate

31.6 min

Mean Commute Time

How ZIP 91737 ranks nationally

Rancho Cucamonga, CA household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$122,334 Top 9% higher than 91% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). This entry sits in this band. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 63.9%
Bachelor's Degree or Higher 41.4%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

8,340

Total Housing Units

7,995

Occupied Units

345

Vacant Units

2.87

Avg Household Size

Occupancy Type

Owner 71.1%
Renter 28.9%

$878,400

Median Home Value

+14% vs state

$2,371

Median Rent

1985

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+5.7%

YoY Change (2024)

359

HPI Index (2000 = 100)

+259%

Total Change Since 2000

Home values in ZIP 91737 have increased 5.7% over the past year (2024). Since 2000, this ZIP has seen +259% cumulative appreciation.

Year Annual Change HPI Index
2020 +2.2% 254
2021 +11.5% 283
2022 +16.9% 331
2023 +2.6% 340
2024 +5.7% 359

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 393 business establishments in ZIP 91737, employing approximately 3,913 people with a combined annual payroll of $127,403,000.

393

Businesses

3,913

Employees

$127.4M

Annual Payroll

15

Industry Sectors

Industry Establishments % of Total
Health care and social assistance 60 15.3%
Construction 54 13.7%
Professional, scientific, and technical services 41 10.4%
Transportation and warehousing 33 8.4%
Other services (except public administration) 30 7.6%
Retail trade 27 6.9%
Administrative and support and waste management and remediation services 27 6.9%
Accommodation and food services 27 6.9%
Real estate and rental and leasing 26 6.6%
Wholesale trade 25 6.4%
Educational services 14 3.6%
Finance and insurance 10 2.5%
Information 9 2.3%
Manufacturing 5 1.3%
Arts, entertainment, and recreation 3 0.8%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 91737 vs 91701 →

ZIP 91737 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 91737 ranks #0 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 91737 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 91737 ranks #5 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
91701 Rancho Cucamonga, CA 38,976 1.6 mi
91730 Rancho Cucamonga, CA 66,925 3.7 mi
91739 Rancho Cucamonga, CA 34,794 3.6 mi
91784 Upland, CA 25,938 4.7 mi
91764 Ontario, CA 54,086 5.5 mi
92336 Fontana, CA 88,419 6.5 mi
91786 Upland, CA 51,165 5.8 mi
91761 Ontario, CA 56,913 8.2 mi
91711 Claremont, CA 35,705 8.1 mi
92358 Lytle Creek, CA 707 8.1 mi

More ZIP Codes in San Bernardino County

92335 standard
Fontana, CA
Pop: 95,397
92336 standard
Fontana, CA
Pop: 88,419
92376 standard
Rialto, CA
Pop: 81,516
91710 standard
Chino, CA
Pop: 80,358
92345 standard
Hesperia, CA
Pop: 78,715
91709 standard
Chino Hills, CA
Pop: 74,796

Related Areas

San Bernardino County Rancho Cucamonga, CA California

Frequently Asked Questions

What county is ZIP code 91737 in? ▼
ZIP code 91737 (Rancho Cucamonga) is located in San Bernardino County, California. San Bernardino County contains multiple ZIP codes, see the full list at /counties/san-bernardino-ca.
What is the population of ZIP code 91737? ▼
ZIP code 91737 in Rancho Cucamonga, CA has a population of 24,740 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 91737? ▼
The median household income in ZIP 91737 is $122,334, which is 60% above the national average of $76,288.
What is the average home value in ZIP 91737? ▼
The median home value in ZIP 91737 is $878,400, which is 216% above the national average of $278,155.
What is the demographic makeup of ZIP 91737? ▼
The largest racial group in ZIP 91737 is White at 47.3%. Hispanic or Latino residents make up 32.8% of the population.
How many businesses are in ZIP code 91737? ▼
ZIP code 91737 has 393 business establishments employing approximately 3,913 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 91737? ▼
The top industries by establishment count in ZIP 91737 are: Health care and social assistance (60), Construction (54), Professional, scientific, and technical services (41). There are 15 industry sectors represented in total.
How have home values changed in ZIP code 91737? ▼
According to the FHFA House Price Index, home values in ZIP 91737 increased by 5.7% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 259%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 91737? ▼
In ZIP code 91737, 63.9% of residents aged 25+ have a high school diploma or higher, and 41.4% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 91737? ▼
The mean commute time for workers in ZIP code 91737 is 31.6 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 91737? ▼
In ZIP code 91737, approximately 71.1% of occupied housing units are owner-occupied and 28.9% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 91737? ▼
The poverty rate in ZIP code 91737 is 8.6% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.