Area Code 820

California (CA) • Santa Barbara, San Luis Obispo, Oxnard, Santa Maria, Ventura, Camarillo, Lompoc, Simi Valley • Pacific Time (PT)

What Stands Out

•Coverage: 1.6M people across 76 ZIP codes.
•Overlapping area codes: 805.
•Major cities: Santa Barbara, San Luis Obispo, Oxnard.

Spotlight: Coverage

Snapshot highlights for area code 820.

Income

85th

Home values

96th

Poverty rate

55th

Area Code Basics

Primary State

California (CA)

States Served

California (CA)

Major Cities

Santa Barbara, San Luis Obispo, Oxnard, Santa Maria, Ventura, Camarillo, Lompoc, Simi Valley

Time Zone(s)

Pacific Time (PT)

Est. Population

1.6M

ZIP Codes

Data accuracy & methodology

This report aggregates 2020–2024 ACS 5-year estimates and geographic overlays for orientation. Area-code service areas can cross ZIP/state boundaries and change over time; verify official assignments with NANPA for critical use.