| Place Name | Guasti |
| Place Type | Unincorporated |
| ZIP Code(s) | 91761 |
| County | San Bernardino County |
| Area Code(s) | 840,909 |
| Timezone | Pacific Daylight Time (PDT) |
| Population () | |
| Metro/Micro Stats Area | Riverside-San Bernardino-Ontario, CA |
| US Congressional District(s) | California 35th |
| State Assembly Districts | 53 |
| State Senate Districts | 22 |