Find the last 4 digits (ZIP+4) for an address in 91729

ZIP 91729, Rancho Cucamonga, CA is filled in. Just type the street address.

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ZIP Code 91729 – Rancho Cucamonga, CA

Rancho Cucamonga, California · San Bernardino County · Pacific time

ZIP code91729
CityRancho Cucamonga
StateCalifornia
CountySan Bernardino County
PopulationNot published (no Census ZIP area)
Time zonePacific · local time
ZIP typePO box or unique ZIP (no Census area)
Center (lat, long)34.1064, -117.5931

Area codes in this area

840909

These are the area codes that most often serve ZIP 91729 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

91730 Rancho Cucamonga · 0.8 mi91701 Rancho Cucamonga · 2.2 mi91764 Ontario · 2.3 mi91743 Guasti · 2.9 mi91737 Rancho Cucamonga · 3.5 mi91785 Upland · 3.8 mi91786 Upland · 3.9 mi91784 Upland · 4.3 mi

About ZIP 91729

ZIP code 91729 is assigned to Rancho Cucamonga, California. It lies in San Bernardino County. It is a PO-box-only or single-address ZIP, so the Census Bureau does not publish an area for it; the location shown is approximate. The closest neighboring ZIP is 91730 (Rancho Cucamonga), about 0.8 miles away.

Every address in 91729 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources