California Area Codes
40 active area codes · Los Angeles · Population around 39,364,774
California has 40 active area codes, serving cities like Los Angeles, San Diego, and San Jose. Of those, 32 are overlays covering ground another code already covers, which is why local calls there use all ten digits. The newest, 357, has been in service since March 26, 2025. Each code below links to its cities, carriers, timezone, and coverage map.
California Area Code Map
What area codes does California have?
- 209OverlayStocktonPacific Time (PT) · 154 cities · 1,804,069
- 213OverlayLos AngelesPacific Time (PT) · 24 cities · 2,419,041
- 279OverlaySacramentoPacific Time (PT) · 46 cities · 1,479,293
- 310OverlayLos AngelesPacific Time (PT) · 34 cities · 1,891,605
- 323OverlayLos AngelesPacific Time (PT) · 24 cities · 2,419,041
- 341OverlayOaklandPacific Time (PT) · 33 cities · 1,713,648
- 350OverlayStocktonPacific Time (PT) · 154 cities · 1,804,069
- 357OverlayFresnoPacific Time (PT) · 122 cities · 1,781,699
- 408OverlaySan JosePacific Time (PT) · 19 cities · 1,724,205
- 415OverlaySan FranciscoPacific Time (PT) · 32 cities · 1,154,046
- 424OverlayLos AngelesPacific Time (PT) · 34 cities · 1,891,605
- 442OverlayOceansidePacific Time (PT) · 136 cities · 2,211,654
- 510OverlayOaklandPacific Time (PT) · 33 cities · 1,713,648
- 530OverlayReddingPacific Time (PT) · 278 cities · 1,812,653
- 559OverlayFresnoPacific Time (PT) · 122 cities · 1,781,699
- 562Long BeachPacific Time (PT) · 32 cities · 1,426,637
- 619OverlaySan DiegoPacific Time (PT) · 34 cities · 1,633,698
- 626PasadenaPacific Time (PT) · 43 cities · 1,384,118
- 628OverlaySan FranciscoPacific Time (PT) · 32 cities · 1,154,046
- 650San MateoPacific Time (PT) · 39 cities · 962,315
- 657OverlayAnaheimPacific Time (PT) · 25 cities · 1,595,550
- 661BakersfieldPacific Time (PT) · 79 cities · 1,558,606
- 669OverlaySan JosePacific Time (PT) · 19 cities · 1,724,205
- 707OverlaySanta RosaPacific Time (PT) · 146 cities · 1,393,340
- 714OverlayAnaheimPacific Time (PT) · 25 cities · 1,595,550
- 738OverlayLos AngelesPacific Time (PT) · 24 cities · 2,419,041
- 747OverlayLos AngelesPacific Time (PT) · 16 cities · 1,925,671
- 760OverlayOceansidePacific Time (PT) · 136 cities · 2,211,654
- 805OverlayOxnardPacific Time (PT) · 79 cities · 1,556,801
- 818OverlayLos AngelesPacific Time (PT) · 16 cities · 1,925,671
- 820OverlayOxnardPacific Time (PT) · 79 cities · 1,556,801
- 831SalinasPacific Time (PT) · 60 cities · 770,526
- 837OverlayReddingPacific Time (PT) · 278 cities · 1,812,653
- 840OverlaySan BernardinoPacific Time (PT) · 38 cities · 2,007,311
- 858OverlaySan DiegoPacific Time (PT) · 34 cities · 746,764
- 909OverlaySan BernardinoPacific Time (PT) · 38 cities · 2,007,311
- 916OverlaySacramentoPacific Time (PT) · 46 cities · 1,479,293
- 925ConcordPacific Time (PT) · 41 cities · 1,134,632
- 949IrvinePacific Time (PT) · 18 cities · 1,510,963
- 951RiversidePacific Time (PT) · 54 cities · 1,920,770
More than one of these codes covers 50 of the 58 counties in California, and one county is covered by 14 of them. Each card counts the people inside that code's own boundary at the 2020 census. Adding all 40 gives 67,015,902, against the 39,538,223 the same census counts in those counties, because 27,477,679 residents fall inside more than one code.
Which cities are the largest in California?
| # | City | Area Codes | Population |
|---|---|---|---|
| 1 | Los Angeles | 213 / 310 / 323 / 424 / 747 / 818 / 738 | 3,878,704 |
| 2 | San Diego | 619 / 858 | 1,404,452 |
| 3 | San Jose | 408 / 669 | 997,368 |
| 4 | San Francisco | 415 / 628 | 827,526 |
| 5 | Fresno | 559 / 357 | 550,105 |
| 6 | Sacramento | 279 / 916 | 535,798 |
| 7 | Long Beach | 562 | 450,901 |
| 8 | Oakland | 341 / 510 | 443,554 |
| 9 | Bakersfield | 661 | 417,468 |
| 10 | Anaheim | 657 / 714 | 344,561 |
How many phone prefixes does California use?
The area codes in California hold 20,637 assigned prefixes between them, listed under 108 distinct carrier names. A prefix is the three digits after the area code, and NANPA assigns each one to a single carrier. Three of the 40 codes here — 357, 738 and 837 — are newer than the NANPA extract behind these numbers, so their prefixes are not counted above.
Sources: City populations – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). State populations – the same program, Vintage 2025 (CO-EST2025-ALLDATA). Area-code footprint and county populations – 2020 Census Centers of Population, mapped against NANP area code boundaries. The share of each city inside a code is measured the same way, against Census place boundaries from the Census Bureau's TIGERweb service. Area code assignments – NANPA CO Code data. See our data methodology.
Frequently Asked Questions
How many area codes does California have?
California has 40 active area codes: 209, 213, 279, 310, 323, 341, 350, 357, 408, 415, 424, 442, 510, 530, 559, 562, 619, 626, 628, 650, 657, 661, 669, 707, 714, 738, 747, 760, 805, 818, 820, 831, 837, 840, 858, 909, 916, 925, 949, 951.
What is the main area code for California?
Of the 40 area codes in California, 213 is the oldest one still serving Los Angeles, its largest city. 213 has been in service since 1947.
What are the largest cities in California?
The largest cities in California include Los Angeles, San Diego, San Jose, San Francisco, Fresno.
What is the total population of California?
California has an estimated total population of 39,364,774 based on US Census PEP 2024 data.
Do I have to dial ten digits in California?
In the parts of California covered by an overlay, yes. 32 of the 40 area codes here cover ground another code already covers, and where two codes share an area, local calls need the area code as well as the seven-digit number.
Why does California have 40 area codes?
They arrived one at a time rather than all at once: 213 has been in service since 1947. 32 of the 40 are overlays, laid over a code that already covered the same ground instead of splitting its map in two. The most recent is 357, in service since March 26, 2025.
What is the newest area code in California?
357, in service since March 26, 2025.
Is my county covered by more than one area code in California?
It may be: more than one area code covers 50 of the 58 counties in California, and one county there is covered by 14 of them. The table above shows which codes reach each of the largest cities.