Massachusetts's 3rd congressional district

Massachusetts's 3rd congressional district
Interactive map of district boundaries since January 3, 2023
Representative
Population (2024)792,213
Median household
income
$98,501
Ethnicity
Cook PVID+11

Massachusetts's 3rd congressional district is located in north-central and northeastern Massachusetts. The largest municipalities in the district are Lowell, Lawrence, Haverhill, Methuen, Billerica (partial), Fitchburg, and Marlborough.

Democrat Lori Trahan has represented the district since 2019.