Area codes in Santa Rosa, California
Santa Rosa, California uses 2 area codes — 707 and 369. The main Santa Rosa area code is 707.
Area codes serving Santa Rosa
Phone numbers in Santa Rosa are written as ten digits — for example (707) 555-0190 — and fall in the Pacific Time zone.
How Santa Rosa came to have 2 area codes
The original Santa Rosa area code is 707, in service since 1959. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 369 (2023). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Santa Rosa now uses all 2 codes and every local call is dialed with ten digits.
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More cities in California
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- Fresno area codes
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- Oakland area codes
Frequently asked questions
What is the area code for Santa Rosa?
The main area code for Santa Rosa, California is 707. Santa Rosa is now served by 2 area codes in total: 707, 369.
How many area codes does Santa Rosa have?
Santa Rosa has 2 area codes: 707, 369.
Why does Santa Rosa have more than one area code?
As Santa Rosa used up the numbers available in its original area code (707, in service since 1959), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Santa Rosa number?
Dial all 10 digits — the area code (707 or 369) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.