BranchWatch

Credit unions · Massachusetts

Mass Bay

NCUA-insuredstate charterlow-income designated

Headquartered in South Boston, Massachusetts. Chartered in 1936. Charter number 68137.

Total assets
$368M
Members
17,688
Shares & deposits
$261M
Net worth ratio
11.26%
net worth / assets

Locations (4)

South Bostonmain officeCorporate Office

147 W 4th St, South Boston, MA 02127 map

6172692700ATMMember services

8:45 AM to 4:15 PM

Quincy CenterBranch Office

1250 Hancock St, Quincy, MA 02169 map

6172692700ATMMember services

8:45 AM to 4:15 PM

EverettBranch Office

183 Main St, Everett, MA 02149 map

6172692700ATMDrive-throughMember services

8:45am-4:15pm

Seaport BranchBranch Office

409 D Street, South Boston, MA 02127 map

6172692700ATMMember services

8:45 to 4:15 M-W, F8:45 to 6:00 Th

Transcribed from NCUA call-report data (cycle 2026-03). Phone numbers and hours are as reported to the NCUA and can lag reality — verify before visiting. Share deposits are NCUA-insured up to $250,000 per member.