| Area Code | 661 |
| State | California |
| Current Time in Area Code 661 | 661> PDT |
| Timezone | Pacific Daylight Time |
| Regional Market Area | Fresno-Visalia Area |
| Metro Area(s) | Bakersfield, CA |
| Population (2020) | 909235 |
| Adjacent Area Codes | 442,559,626,747,760,805,818,820,840,909 |
| Kern County |
| Bakersfield |
| Delano |
| Lancaster |
| Oildale |
| Palmdale |
| Santa Clarita |