| Area Code | 707 |
| State | California |
| Current Time in Area Code 707 | 707> PDT |
| Timezone | Pacific Daylight Time |
| Regional Market Area | Chico-Redding Area Eureka Area Metro Bay Area |
| Metro Area(s) | Clearlake, CA Crescent City, CA Eureka-Arcata, CA Napa, CA Santa Rosa-Petaluma, CA Ukiah, CA Vallejo, CA |
| Population (2020) | 1404343 |
| Adjacent Area Codes | 279,341,415,458,510,530,541,628,916,925 |
| Del Norte County |
| Humboldt County |
| Lake County |
| Mendocino County |
| Napa County |
| Solano County |
| Sonoma County |
| Fairfield |
| Napa |
| Petaluma |
| Rohnert Park |
| Santa Rosa |
| Vacaville |
| Vallejo |