Area Code 408

California (CA) • San Jose, Santa Clara, Sunnyvale, Los Gatos, Alviso, Campbell, Coyote, Cupertino • Pacific Time (PT)

What Stands Out

•Coverage: 1.7M people across 49 ZIP codes (primarily Santa Clara County, CA).
•Overlapping area codes: 669.
•Major cities: San Jose, Santa Clara, Sunnyvale.

Spotlight: Coverage

Snapshot highlights for area code 408.

Income

97th

Home values

99th

Poverty rate

33rd

Area Code Basics

Primary State

California (CA)

States Served

California (CA)

Major Cities

San Jose, Santa Clara, Sunnyvale, Los Gatos, Alviso, Campbell, Coyote, Cupertino

Time Zone(s)

Pacific Time (PT)

Est. Population

1.7M

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.