Santa Clara County · California
San Jose, CA area codes and time zone
Quick answer
San Jose is served by area codes 408, 510, 650, 669, 916, 925, keeps PST time (GMT-8), and sits in county FIPS 06085.
- Area codes
- 408 · 510 · 650 · 669 · 916 · 925Within 25 miles of the city centre
- Time zone
- PSTAmerica/Los_Angeles
- UTC offset
- GMT-8PDT in summer (UTCGMT-7)
- County FIPS
- 06085Santa Clara County
Dialling from and to San Jose
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 Jose 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 Jose — population about 970k — is covered by codes 408, 510, 650, 669, 916, 925, drawn from within 25 miles of the city centre. Because these 6 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 Jose data
Other San Jose datasets on this site.
- San Jose population and income
- San Jose sales tax rate
- San Jose property tax
- San Jose cost of living
- San Jose home values and rent
- San Jose crime rates
- San Jose public schools
- San Jose weather normals
- San Jose commute times
Statewide: California cities · California ZIP codes · California sales tax · California counties