San Francisco County · California
San Francisco, CA area codes and time zone
Quick answer
San Francisco is served by area codes 415, 510, 628, 650, 707, 916, 925, keeps PST time (GMT-8), and sits in county FIPS 06075.
- Area codes
- 415 · 510 · 628 · 650 · 707 · 916 · 925Within 25 miles of the city centre
- Time zone
- PSTAmerica/Los_Angeles
- UTC offset
- GMT-8PDT in summer (UTCGMT-7)
- County FIPS
- 06075San Francisco County
Dialling from and to San Francisco
What this means when you pick up the phone.
Because more than one code covers this area, ten-digit dialling applies for local calls: area code plus number, every time. From abroad, dial +1 then the ten digits.
How San Francisco came to have several area codes
Why one city can carry several codes.
Area codes are assigned to geography, then exhausted as demand grows. San Francisco — population about 809k — is covered by codes 415, 510, 628, 650, 707, 916, 925, drawn from within 25 miles of the city centre. Because these 7 codes serve the same footprint, they are overlays: the number pool ran low and a new code was layered on top rather than splitting the city apart. All ten digits are required for every local call.
More San Francisco data
Other San Francisco datasets on this site.
- San Francisco population and income
- San Francisco sales tax rate
- San Francisco property tax
- San Francisco cost of living
- San Francisco home values and rent
- San Francisco crime rates
- San Francisco public schools
- San Francisco weather normals
- San Francisco commute times
Statewide: California cities · California ZIP codes · California sales tax · California counties