Where Is Area Code 650?
Area code 650 is found in the US state of California. Primarily servicing the city of San Mateo (population: 135625), area code 650 covers 2 counties of California.
Located in the Pacific time zone, area code 650 is on the same time as Los Angeles, CA.
Area code 650 was brought into effect on August 2, 1997. 650 was split from the parent 415 area code.
Counties in Area Code 650
- San Mateo,
- Santa Clara.
Most Populous Cities in Area Code 650
| City | County | City Population | Time Zone |
|---|---|---|---|
| San Mateo | San Mateo | 135,625 | PST |
| Daly City | San Mateo | 111,074 | PST |
| Redwood City | San Mateo | 107,459 | PST |
| Palo Alto | Santa Clara | 95,392 | PST |
| Mountain View | Santa Clara | 76,985 | PST |
| South San Francisco | San Mateo | 65,832 | PST |
| San Bruno | San Mateo | 42,324 | PST |
| Los Altos | Santa Clara | 42,166 | PST |
| Burlingame | San Mateo | 41,919 | PST |
| Menlo Park | San Mateo | 41,702 | PST |
| Pacifica | San Mateo | 38,378 | PST |
| San Carlos | San Mateo | 30,012 | PST |
| Belmont | San Mateo | 26,746 | PST |
| Millbrae | San Mateo | 22,161 | PST |
| Half Moon Bay | San Mateo | 18,958 | PST |
| Stanford | Santa Clara | 14,296 | PST |
| Atherton | San Mateo | 7,294 | PST |
| Portola Valley | San Mateo | 6,723 | PST |
| Brisbane | San Mateo | 4,406 | PST |
| Moss Beach | San Mateo | 3,128 | PST |
| Montara | San Mateo | 2,997 | PST |
| La Honda | San Mateo | 1,604 | PST |
| Pescadero | San Mateo | 1,599 | 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.
This page was last updated on July 3, 2015.