City ZIP codes · California
Upland, CA ZIP Codes
3 ZIP codes use the postal name Upland, California (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 2 residential and 1 for PO boxes or a single organization. Median household income runs from $92,458 in 91786 to $154,349 in 91784, 1.7 times as much (Census Bureau, ACS 2020-2024). Upland's most populous ZIP code is 91786, with 55,829 people (ACS 2020-2024); 100% of its land is in the city of Upland.
- ACS2020-24
- Census2020
- GeoNames2026
Where are Upland's ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are Upland's ZIP codes?
The highest median household income is in 91784 ($154,349), the lowest in 91786 ($92,458). Home values run from $641,600 in 91786 to $891,600 in 91784.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013, B25077, B01003).
All 2 residential ZIP codes of Upland
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).
PO Box and single-organization ZIP codes in Upland
1 ZIP code named Upland has no residential delivery area: post office boxes, or one organization (a large employer, an agency, a university) with its own code. The Census Bureau publishes no figures for them.
| ZIP | County |
|---|---|
| 91785 | San Bernardino County |
Source: GeoNames postal codes (CC BY 4.0); a ZIP code with no Census ZCTA has no residential delivery area.
Which counties do Upland's ZIP codes reach?
Upland's residential ZIP codes lie in San Bernardino County.
Which places do Upland's ZIP codes cover?
A postal name is not a city limit. By the Census Bureau's places, Upland's residential ZIP codes cover Upland itself and 1 other place, each listed with the ZIP codes that have at least 5% of their land in it or hold most of the place:
- San Antonio Heights census-designated 91784
Source: U.S. Census Bureau, 2020 ZCTA-to-place relationship file (shares of land).
Which first three digits do Upland's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Upland starts with 917.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 917 | Industry, CA (SCF 917) | 3 | 64 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.