Geographic Overview and Area Codes

Oakland, California, is strategically located in Alameda County, in the west-central part of the state. The city is situated at coordinates 37°48′16″N 122°16′15″W and covers a total area of 202 square kilometers, with 57 square kilometers occupied by water and 145 square kilometers by land. Neighboring communities include Berkeley to the north, San Leandro to the south, and Alameda to the west. Oakland operates in the Pacific Time Zone (UTC−08:00), shifting to UTC−07:00 during daylight saving time. The city is served by two area codes: 510 and 341.

Key regions and their area codes:

  • 510: Covers a significant portion of the East Bay region, including Oakland, Berkeley, Hayward, Fremont, and Alameda.
  • 341: Also covers Oakland and several regions in the East Bay areas, including Alameda and Contra Costa counties.