510
Covers western East Bay of California
In service since 1991
Split from area code 415
City facts
Richmond area codes
Area codes for western East Bay of California: history, overlays and how to dial.
510341
Richmond uses area codes 510 and 341.
About these area codes
341
Covers western East Bay of California
In service since 2019
How to call a number in Richmond
Inside the US
1 (510) 555-0123Dial 1, the area code, then the seven-digit number.Local call
555-0123Many areas now require the area code for local calls too; if a seven-digit call fails, add it.From outside the US
+1 510 555 0123Use your country's exit code or +, then 1 for the US.Richmond is on Pacific Time (PT); check the time before calling from another zone.
Nearby area codes
| Area code | Used in | Distance |
|---|---|---|
| 707 | Vallejo | 14 mi |
| 369 | Vallejo | 14 mi |
| 925 | Concord | 17 mi |
| 650 | San Mateo | 26 mi |
| 408 | Sunnyvale | 43 mi |
| 669 | Sunnyvale | 43 mi |
| 209 | Stockton | 58 mi |
| 350 | Stockton | 58 mi |
Richmond quick facts
Richmond was incorporated on August 3, 1905. It is named for Richmond, Virginia.
Incorporated1905August 3, 1905
CountyContra Costa CountyCalifornia
Area codes510, 341Population115,396Census ACS estimateZIP codes594801, 94803, 94804…Elevation46 ft14 m
Time zonePacific TimePT
Dates, namesake and elevation from Wikipedia: Richmond, California and Wikidata (checked 2026-11-08); population and ZIP codes from the U.S. Census Bureau.
Questions
What area code is Richmond?
Richmond uses area codes 510 and 341.
When did area code 510 start?
Area code 510 dates from 1991, when it was split from area code 415.
When did area code 341 start?
Area code 341 dates from 2019.
What time zone is area code 510 in?
Richmond is on Pacific Time (PT).
Sources: Area codes 510 and 341, Area codes 510 and 341 (Wikipedia) and Wikidata, checked 2026-11-08. Numbering plans change; the North American Numbering Plan Administrator is the official record.