1. World Map/
  2. North America/
  3. US/
  4. Area Codes/
  5. Area Code 617

Where Is Area Code 617?

Area code 617 is found in the US state of Massachusetts. Primarily servicing the city of Boston (population: 222365), area code 617 covers 3 counties of Massachusetts.

Located in the Eastern time zone, area code 617 is on the same time as New York, NY.

Area code 617 was brought into effect on January 1, 1947.

Map of  with area code 617 highlighted

Counties in Area Code 617

  • Middlesex,
  • Norfolk,
  • Suffolk.

Most Populous Cities in Area Code 617

City County City Population Time Zone
Boston Suffolk 222,365 EST
Cambridge Middlesex 107,710 EST
Quincy Norfolk 93,782 EST
Dorchester Suffolk 85,319 EST
Somerville Middlesex 75,519 EST
Medford Middlesex 59,280 EST
Brookline Norfolk 50,808 EST
Dorchester Center Suffolk 49,265 EST
Brighton Suffolk 44,107 EST
Everett Middlesex 42,493 EST
Jamaica Plain Suffolk 36,499 EST
Chelsea Suffolk 36,213 EST
Watertown Middlesex 32,740 EST
Roslindale Suffolk 30,751 EST
Hyde Park Suffolk 29,371 EST
Milton Norfolk 27,445 EST
West Roxbury Suffolk 26,663 EST
Mattapan Suffolk 26,355 EST
Roxbury Suffolk 26,132 EST
Chestnut Hill Middlesex 22,989 EST
Allston Suffolk 22,170 EST
Newton Center Middlesex 19,528 EST
Winthrop Suffolk 18,039 EST
Charlestown Suffolk 16,949 EST
Roxbury Crossing Suffolk 15,652 EST

Note: The above list is based off of the top 25 most populous cities in the area code as per 2012 United States Census Bureau estimates.

View all United States Area Codes.

Trending on WorldAtlas

This page was last modified on July 3, 2015.