831 Area Code

Area code 831 is an area code that covers Western central California.

California has area codes of 209, 213, 310, 323, 408, 415, 424, 442, 510, 530, 559, 562, 619, 626, 650, 657, 661, 669, 707, 714, 747, 760, 805, 818, 831, 858, 909, 916, 925, 949, 951.

Counties that Use 831 Area Code

Major Cities that Use 831 Area Code

All Cities & Towns that Use 831 Area Code

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Where is 831 area code?

The following map shows the coverage of 831 area code. The coverage area is shown in green.

Area code map of the entire U.S.