ZIP code 91739
Where is ZIP code 91739?
Rancho Cucamonga, California
San Bernardino County · Standard ZIP code
ZIP code 91739 belongs to Rancho Cucamonga, California in San Bernardino County. 91739 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Pacific Time zone and uses area codes 840 and 909. About 41,673 people live in the 91739 area, where the median household income is $143,265. The closest ZIP codes are 91737 (Rancho Cucamonga, 3.9 mi southwest), 91701 (Rancho Cucamonga, 5.2 mi southwest) and 91759 (Mt Baldy, 5.7 mi north).
| ZIP code | 91739 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Rancho Cucamonga |
| Also accepted | Etiwanda, Rch Cucamonga |
| State | California (CA) |
| County | San Bernardino County |
| Time zone | Pacific Time · now |
| Area codes | 840, 909 |
| Coordinates | 34.1705, -117.5182 map |
| 3-digit prefix | 917 |
Population and income in 91739
| Population | 41,673 · higher than 80% of California ZIP codes |
|---|---|
| People per square mile | 1,466 · higher than 56% of California ZIP codes |
| Median age | 37.6 years · lower than 63% of California ZIP codes |
| Men / women | 54% / 46% |
| Median household income | $143,265 · higher than 85% of California ZIP codes |
| Income per person | $51,916 |
| Below the poverty line | 7.0% |
| Bachelor’s degree or higher | 45% of adults 25+ |
| Median home value | $895,000 · higher than 70% of California ZIP codes |
| Median rent | $2,535 a month |
| Housing units | 12,512 |
| Households | 11,990 (3.26 people on average) |
| Owners / renters | 72% / 28% |
| Land area | 28.42 sq mi (plus 0.01 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 91739. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 91739
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 91737 | Rancho Cucamonga, CA | 3.9 mi SW | Standard |
| 91701 | Rancho Cucamonga, CA | 5.2 mi SW | Standard |
| 91759 | Mt Baldy, CA | 5.7 mi N | PO Box only |
| 92336 | Fontana, CA | 5.9 mi SE | Standard |
| 92358 | Lytle Creek, CA | 5.9 mi N | Standard |
| 91729 | Rancho Cucamonga, CA | 6.2 mi SW | PO Box only |
| 91730 | Rancho Cucamonga, CA | 6.2 mi SW | Standard |
| 92331 | Fontana, CA | 6.3 mi SE | PO Box only |
| 92377 | Rialto, CA | 6.6 mi E | Standard |
| 92334 | Fontana, CA | 7.2 mi SE | PO Box only |
| 92335 | Fontana, CA | 7.3 mi SE | Standard |
| 92407 | San Bernardino, CA | 7.9 mi NE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 91739 or measure the distance to another ZIP code.
How to address mail to 91739
123 MAIN ST
RANCHO CUCAMONGA CA 91739
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts ETIWANDA and RCH CUCAMONGA as the city name for 91739. Adding the 4-digit ZIP+4 code (91739-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Rancho Cucamonga, CA
All Rancho Cucamonga ZIP codes with population and income →
Questions
- What city is ZIP code 91739?
- 91739 is a Rancho Cucamonga, California ZIP code. Etiwanda and Rch Cucamonga are also accepted as the city name.
- What county is 91739 in?
- ZIP code 91739 is in San Bernardino County, California.
- What time zone is ZIP code 91739 in?
- 91739 is in the Pacific Time zone (America/Los_Angeles).
- What area code is 91739?
- Phone numbers in ZIP code 91739 use area codes 840 and 909.
- What is the population of ZIP code 91739?
- About 41,673 people live in ZIP code 91739, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 91739?
- The median household income in 91739 is $143,265 a year, higher than 85% of California ZIP codes.
- What ZIP codes are near 91739?
- The nearest ZIP codes to 91739 are 91737 (Rancho Cucamonga, 3.9 miles), 91701 (Rancho Cucamonga, 5.2 miles), 91759 (Mt Baldy, 5.7 miles) and 92336 (Fontana, 5.9 miles).