Postal reference / United States
91758Ontario, California
ZIP code 91758 is a United States postal code for Ontario, California. Its county association is San Bernardino County. The map reference point is at 34.0633, -117.6509.
- State / territory
- California
- Recorded place name
- Ontario
- County association
- San Bernardino
- Estimated coordinate
- 34.0633, -117.6509
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.
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California directoryOther ZIP codes in Ontario, CA
Ontario has 4 ZIP codes in the reference dataset.
Nearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 91762 | Ontario | CA | San Bernardino | 1.0 |
| 91764 | Ontario | CA | San Bernardino | 1.7 |
| 91763 | Montclair | CA | San Bernardino | 2.8 |
| 91761 | Ontario | CA | San Bernardino | 2.9 |
| 91785 | Upland | CA | San Bernardino | 3.6 |
| 91786 | Upland | CA | San Bernardino | 3.6 |
| 91743 | Guasti | CA | San Bernardino | 3.7 |
| 91710 | Chino | CA | San Bernardino | 4.0 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
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