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  5. Area Code 707

Where Is Area Code 707?

Area code 707 is found in the US state of California. Primarily servicing the city of Santa Rosa (population: 213289), area code 707 covers 9 counties of California.

Located in the Pacific time zone, area code 707 is on the same time as Los Angeles, CA.

Area code 707 was brought into effect on January 1, 1959. 707 was split from the parent 415 area code.

Map of  with area code 707 highlighted

Counties in Area Code 707

  • Del Norte,
  • Humboldt,
  • Lake,
  • Mendocino,
  • Napa,
  • Solano,
  • Sonoma.

Most Populous Cities in Area Code 707

City County City Population Time Zone
Santa Rosa Sonoma 213,289 PST
Vallejo Solano 121,214 PST
Fairfield Solano 107,588 PST
Vacaville Solano 101,258 PST
Napa Napa 95,778 PST
Petaluma Sonoma 71,374 PST
Eureka Humboldt 48,382 PST
Rohnert Park Sonoma 43,879 PST
Sonoma Sonoma 35,975 PST
Ukiah Mendocino 31,658 PST
Windsor Sonoma 29,000 PST
Suisun City Solano 28,769 PST
Sebastopol Sonoma 28,719 PST
Benicia Solano 27,573 PST
Crescent City Del Norte 24,253 PST
Dixon Solano 20,921 PST
Arcata Humboldt 20,229 PST
American Canyon Napa 20,050 PST
McKinleyville Humboldt 17,458 PST
Healdsburg Sonoma 17,128 PST
Clearlake Lake 15,420 PST
Fort Bragg Mendocino 14,729 PST
Fortuna Humboldt 13,677 PST
Willits Mendocino 13,201 PST
Lakeport Lake 11,137 PST

Note: The above list is based off of the top 25 most populous cities in the area code as per 2012 United States Census Bureau estimates.

View all United States Area Codes.

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This page was last updated on July 3, 2015.