NCUA-insured credit union
St. Mary's — Marlborough, MA
Credit Union headquartered in Marlborough, Massachusetts.
Source: NCUA call report data, data as of March 31, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 46 Lizotte Dr., Po Box 729 Marlborough, MA 01752 |
| County | Middlesex |
| Website | not published in NCUA data |
| Phone | (508) 490-8000 |
NCUA record
| NCUA Charter | 67864 |
| Federal Reserve RSSD ID | 557595 |
| Status | Active |
| Charter type | 2 (STATE) |
| Financials as of | March 31, 2026 |
How to find your St. Mary's routing number
NCUA does not publish ABA routing numbers, and many credit unions use different routing numbers by state or by account type. The reliable places to find yours: the bottom left of a check from this credit union, the "account details" screen in its online banking, or its official website.
Share one credit line with people you trust. Everyone gets their own limit.
Offices
| St. Mary'S Credit Union/Loan Center main office Marlborough, MA |
46 Lizotte Dr, 01752 (508) 490-8000 8:00 AM to 5:00 PM |
| St. Mary'S Credit Union Framingham, MA |
1255 Worcester Rd, 01701 (508) 490-8000 Monday - Wednesday 8:00 AM - 4:00 PMThursday - Friday 8:00 - 6:00 PMSaturday 8:00 AM - 12:30 PM |
| St. Mary'S Credit Union Hudson, MA |
439A Main St, 01749 (508) 490-8000 Monday Thru Wednesday 8:00 AM to 4:00 PM Thursday 8:00 AM to 7:00 PM Friday 8:00 AM to 6:00 PM Saturday 8:00 AM to 12:30 PM |
| St. Marys' Credit Union Marlborough, MA |
1 Northboro Rd E, 01752 (508) 490-8000 Monday Thru Wednesday 7:30 AM to 5:00 PM Thursday 7:30 to AM to 6:00 PM Friday 7:30 to 7:00 PM Saturday 8:00 AM to 12:30 PM |
| St. Mary'S Credit Union Marlborough, MA |
133 S Bolton St, 01752 (509) 490-8000 Monday Thru Wednesday 8:00 AM to 4:00 PM Thursday 8:00 AM to 6:00 PM Friday 8:00 AM to 7:00 PM Saturday 8:00 AM to 12:30 PM |
| St. Mary'S Credit Union Marlborough, MA |
133 W Main St, 01752 (508) 490-8000 Monday Thru Wednesday 8.00 AM to 4:00 PM Thursday 8:00 AM to 7:00 PM Friday 8:00 AM to 6:00 PMSat 8:00 AM to 12:30 PM |
| St. Mary'S Credit Union Northborough, MA |
100 W Main St, 01532 (508) 490-8000 Monday Thru Wednesday 8:00 AM to 4:00 PM Thursday 8:00 AM to 6:PM Friday 8:00 AM to 6:00 PM Saturday 8:00 AM to 12:30 PM |
| St. Mary'S Credit Union Westborough, MA |
96 Turnpike Rd, 01581 (508) 490-8000 M - W 8:30 - 4:00Th - F 8:30 - 6:00Sa 8:30 - 12:30 |
| Cocc Southington, CT |
100 Executive Blvd, 06489 (860) 677-1169 |
Where St. Mary's has offices
Cities with the most St. Mary's offices
Largest credit unions headquartered elsewhere in Massachusetts
| Rockland Rockland | $3.74 billion |
| Metro Chelsea | $3.30 billion |
| Workers Littleton | $2.51 billion |
| Brightbridge Lawrence | $2.39 billion |
| Hanscom Hanscom AFB | $2.19 billion |
| Jeanne D'arc Lowell | $2.19 billion |
| Greylock Pittsfield | $1.71 billion |
| Webster First Worcester | $1.50 billion |
Compare before you open an account: today's CD and savings rates, the CD calculator and the savings calculator.
