Find the last 4 digits (ZIP+4) for an address in 91784

ZIP 91784, Upland, CA is filled in. Just type the street address.

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ZIP Code 91784 – Upland, CA

Upland, California · San Bernardino County · Pacific time

ZIP code91784
CityUpland
StateCalifornia
CountySan Bernardino County
Population26,886
Time zonePacific · local time
ZIP typeStandard (has a Census ZCTA area)
Land area9.14 sq mi
Center (lat, long)34.1411, -117.6556

Area codes in this area

840909

These are the area codes that most often serve ZIP 91784 (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

91785 Upland · 1.9 mi91786 Upland · 2.5 mi91701 Rancho Cucamonga · 3.2 mi91711 Claremont · 3.5 mi91729 Rancho Cucamonga · 4.3 mi91737 Rancho Cucamonga · 4.5 mi91730 Rancho Cucamonga · 5.1 mi91763 Montclair · 5.4 mi

About ZIP 91784

ZIP code 91784 is assigned to Upland, California. It lies in San Bernardino County. Its Census area covers about 9.14 square miles of land. The closest neighboring ZIP is 91785 (Upland), about 1.9 miles away.

Every address in 91784 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