Dedham, Massachusetts

2 ZIP codes · Eastern time

ZIP codes (largest first)

02026 · 25,23702027 (PO box)
Population25,237
StateMassachusetts
CountyNorfolk County
Time zoneEastern
Land area10.27 sq mi

Area codes in this area

339617781857

These are the area codes that most often serve Dedham (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Find the ZIP+4 for an address in Dedham

Addresses are checked through our secure proxy. Bot checks use Cloudflare Turnstile. Each device can run 5 live checks per day; repeats of the same address are free.

Population: U.S. Census Bureau, ACS 5-year estimates, 2024.