ZIP Code 91758 is located in Ontario California. 91758 is entirely within San Bernardino County. Regionally, 91758 is located in Metro Los Angeles.
| ZIP Code Name | Ontario |
| Primary County | San Bernardino County |
| ZIP Code Type | Standard |
| Current Time | PST |
| Coordinates | 34.06340790,-117.62068176 |
| Adjacent ZIP Codes | |
| Region | Metro Los Angeles |
| Metropolitan/Micropolitan Stat Area | Riverside-San Bernardino-Ontario, CA |
| Time Zone | Pacific Standard Time |
| IANA Timezone | America/Los_Angeles |
| School Districts in 91758 | |
| Elementary Schools in 91758 | |
| Middle Schools in 91758 | |
| High Schools in 91758 |