San Diego County · California
San Diego, CA area codes and time zone
Quick answer
San Diego is served by area codes 442, 619, 760, 858, keeps PST time (GMT-8), and sits in county FIPS 06073.
- Area codes
- 442 · 619 · 760 · 858Within 25 miles of the city centre
- Time zone
- PSTAmerica/Los_Angeles
- UTC offset
- GMT-8PDT in summer (UTCGMT-7)
- County FIPS
- 06073San Diego County
Dialling from and to San Diego
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 Diego 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 Diego — population about 1,381k — is covered by codes 442, 619, 760, 858, drawn from within 25 miles of the city centre. Because these 4 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 Diego data
Other San Diego datasets on this site.
- San Diego population and income
- San Diego sales tax rate
- San Diego property tax
- San Diego cost of living
- San Diego home values and rent
- San Diego crime rates
- San Diego public schools
- San Diego weather normals
- San Diego commute times
Statewide: California cities · California ZIP codes · California sales tax · California counties