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.
Counties in Area Code 617
- Middlesex,
- Norfolk,
- Suffolk.
Most Populous Cities in Area Code 617
| City | County | City Population |
|---|---|---|
| Boston | Suffolk | 222,365 |
| Cambridge | Middlesex | 107,710 |
| Quincy | Norfolk | 93,782 |
| Dorchester | Suffolk | 85,319 |
| Somerville | Middlesex | 75,519 |
| Medford | Middlesex | 59,280 |
| Brookline | Norfolk | 50,808 |
| Dorchester Center | Suffolk | 49,265 |
| Brighton | Suffolk | 44,107 |
| Everett | Middlesex | 42,493 |
| Jamaica Plain | Suffolk | 36,499 |
| Chelsea | Suffolk | 36,213 |
| Watertown | Middlesex | 32,740 |
| Roslindale | Suffolk | 30,751 |
| Hyde Park | Suffolk | 29,371 |
| Milton | Norfolk | 27,445 |
| West Roxbury | Suffolk | 26,663 |
| Mattapan | Suffolk | 26,355 |
| Roxbury | Suffolk | 26,132 |
| Chestnut Hill | Middlesex | 22,989 |
| Allston | Suffolk | 22,170 |
| Newton Center | Middlesex | 19,528 |
| Winthrop | Suffolk | 18,039 |
| Charlestown | Suffolk | 16,949 |
| Roxbury Crossing | Suffolk | 15,652 |
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.