Area Code 628

California (CA) • San Francisco, Novato, San Rafael, Belvedere Tiburon, Bolinas, Brisbane, Corte Madera, Daly City • Pacific Time (PT)

What Stands Out

•Coverage: 1.1M people across 56 ZIP codes.
•Overlapping area codes: 415.
•Major cities: San Francisco, Novato, San Rafael.

Spotlight: Coverage

Snapshot highlights for area code 628.

Income

96th

Home values

99th

Poverty rate

50th

Area Code Basics

Primary State

California (CA)

States Served

California (CA)

Major Cities

San Francisco, Novato, San Rafael, Belvedere Tiburon, Bolinas, Brisbane, Corte Madera, Daly City

Time Zone(s)

Pacific Time (PT)

Est. Population

1.1M

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.