820 Area Code
State:California
Major City:Oxnard
Timezone:Pacific
Current Time:
History of area code 820
820 was first put in service June 30, 2018. It was created from area code 805.
Where is area code 820
Area code 820 is located in California and covers Oxnard, Simi Valley, Thousand Oaks, San Buenaventura (Ventura), and Santa Maria. It is an overlay for area code 805 and serves the same area.
What time zone is area code 820?
The 820 area code is located in the Pacific timezone. The Pacific time zone is also known as America/Los_Angeles
820 area code map
Top 4 Counties in Area Code 820
| County | Total Population | % of 820 | % of County |
|---|---|---|---|
| Ventura, CA | 823,318 | 12% | 53% |
| Santa Barbara, CA | 423,895 | 37% | 98% |
| San Luis Obispo, CA | 269,637 | 36% | 100% |
| Monterey, CA | 415,057 | 15% | 38% |
Top 50 Cities in Area Code 820
| City | Total Population | % of 820 | % of City |
|---|---|---|---|
| Oxnard, CA | 197,899 | 0% | 100% |
| Simi Valley, CA | 124,237 | 0% | 99% |
| Thousand Oaks, CA | 126,683 | 1% | 95% |
| San Buenaventura (Ventura), CA | 106,433 | 0% | 100% |
| Santa Maria, CA | 99,553 | 0% | 100% |
| Santa Barbara, CA | 88,410 | 0% | 100% |
| Camarillo, CA | 65,201 | 0% | 100% |
| San Luis Obispo, CA | 45,119 | 0% | 100% |
| Lompoc, CA | 42,434 | 0% | 100% |
| Moorpark, CA | 34,421 | 0% | 100% |
| Goleta, CA | 29,888 | 0% | 100% |
| El Paso de Robles (Paso Robles), CA | 29,793 | 0% | 100% |
| Santa Paula, CA | 29,321 | 0% | 100% |
| Orcutt, CA | 28,905 | 0% | 100% |
| Atascadero, CA | 28,310 | 0% | 100% |
| Isla Vista, CA | 23,096 | 0% | 100% |
| Port Hueneme, CA | 21,723 | 0% | 100% |
| Arroyo Grande, CA | 17,252 | 0% | 100% |
| Nipomo, CA | 16,714 | 0% | 100% |
| Fillmore, CA | 15,002 | 0% | 100% |
| Los Osos, CA | 14,276 | 0% | 100% |
| Grover Beach, CA | 13,156 | 0% | 100% |
| Carpinteria, CA | 13,040 | 0% | 100% |
| Morro Bay, CA | 10,234 | 0% | 100% |
| Montecito, CA | 8,965 | 0% | 100% |
| Templeton, CA | 7,674 | 0% | 100% |
| Pismo Beach, CA | 7,655 | 0% | 100% |
| Ojai, CA | 7,461 | 0% | 100% |
| Oceano, CA | 7,286 | 0% | 100% |
| El Rio, CA | 7,198 | 0% | 100% |
| Guadalupe, CA | 7,080 | 0% | 100% |
| Mira Monte, CA | 6,854 | 0% | 100% |
| Vandenberg Village, CA | 6,497 | 0% | 100% |
| Cambria, CA | 6,032 | 0% | 100% |
| Solvang, CA | 5,245 | 0% | 100% |
| Buellton, CA | 4,828 | 0% | 100% |
| Santa Ynez, CA | 4,418 | 0% | 100% |
| Oak View, CA | 4,066 | 0% | 100% |
| Mission Hills, CA | 3,576 | 0% | 100% |
| Meiners Oaks, CA | 3,571 | 0% | 100% |
| Vandenberg AFB, CA | 3,338 | 0% | 100% |
| Santa Rosa Valley, CA | 3,334 | 0% | 100% |
| Casa Conejo, CA | 3,249 | 0% | 100% |
| Channel Islands Beach, CA | 3,103 | 0% | 100% |
| Cayucos, CA | 2,592 | 0% | 100% |
| Lake Nacimiento, CA | 2,411 | 0% | 100% |
| Mission Canyon, CA | 2,381 | 0% | 100% |
| San Miguel, CA | 2,336 | 0% | 100% |
| Piru, CA | 2,063 | 0% | 100% |
| Los Alamos, CA | 1,890 | 0% | 100% |
Largest Landline Carriers in area code820
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Largest Wireless Carriers in area code820
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Prefixes in area code820
| Prefix | Usage | Primary City | Carrier | Introduced |
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