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  5. Area Code 978

Where Is Area Code 978?

Area code 978 is found in the US state of Massachusetts. Primarily servicing the city of Lowell (population: 108957), area code 978 covers 4 counties of Massachusetts.

Located in the Eastern time zone, area code 978 is on the same time as New York, NY.

Area code 978 was brought into effect on September 1, 1997. 978 was split from the parent 508 area code.

Map of  with area code 978 highlighted

Counties in Area Code 978

  • Essex,
  • Franklin,
  • Middlesex,
  • Worcester.

Most Populous Cities in Area Code 978

City County City Population Time Zone
Lowell Middlesex 108,957 EST
Lawrence Essex 77,662 EST
Haverhill Essex 61,898 EST
Peabody Essex 51,798 EST
Methuen Essex 48,041 EST
Salem Essex 41,798 EST
Leominster Worcester 41,272 EST
Fitchburg Worcester 40,721 EST
Beverly Essex 40,164 EST
Andover Essex 33,757 EST
Billerica Middlesex 30,998 EST
Dracut Middlesex 30,090 EST
Tewksbury Middlesex 29,317 EST
Gloucester Essex 29,271 EST
North Andover Essex 28,827 EST
Danvers Essex 26,783 EST
Chelmsford Middlesex 25,476 EST
Wilmington Middlesex 22,831 EST
Westford Middlesex 22,449 EST
Acton Middlesex 21,846 EST
Gardner Worcester 20,540 EST
Hudson Middlesex 19,495 EST
Concord Middlesex 18,128 EST
Sudbury Middlesex 18,059 EST
Newburyport Essex 17,707 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.

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This page was last updated on July 3, 2015.