Postal reference / United States
91701Rancho Cucamonga, California
ZIP code 91701 is a United States postal code for Rancho Cucamonga, California. Its county association is San Bernardino County. The map reference point is at 34.1376, -117.5999.
- State / territory
- California
- Recorded place name
- Rancho Cucamonga
- County association
- San Bernardino
- Estimated coordinate
- 34.1376, -117.5999
View on OpenStreetMap - ZIP prefix
- 917 · 64 ZIP codes share it
- Data source
- GeoNames postal reference, snapshot September 26, 2026
GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.
Area
- Land area
- 7.392 sq mi (2023 Census Gazetteer)
Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.
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California directoryOther ZIP codes in Rancho Cucamonga, CA
Rancho Cucamonga has 5 ZIP codes in the reference dataset.
Nearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 91737 | Rancho Cucamonga | CA | San Bernardino | 1.3 |
| 91730 | Rancho Cucamonga | CA | San Bernardino | 2.1 |
| 91729 | Rancho Cucamonga | CA | San Bernardino | 2.2 |
| 91784 | Upland | CA | San Bernardino | 3.3 |
| 91785 | Upland | CA | San Bernardino | 3.7 |
| 91786 | Upland | CA | San Bernardino | 3.7 |
| 91764 | Ontario | CA | San Bernardino | 4.5 |
| 91743 | Guasti | CA | San Bernardino | 5.1 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
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