Massachusetts's 3rd congressional district
| Massachusetts's 3rd congressional district | |
|---|---|
Interactive map of district boundaries since January 3, 2023  | |
| Representative | |
| Population (2023) | 767,022 | 
| Median household income  | $95,825 | 
| Ethnicity | 
  | 
| Cook PVI | D+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.