FDIC-insured bank
Dean Co-operative Bank — Franklin, MA
Bank headquartered in Franklin, Massachusetts.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 21 Main St Franklin, MA 02038 |
| County | Norfolk |
| Metro area | Boston-Cambridge-Newton, MA-NH |
| Website | www.deanbank.com |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 27269 |
| Federal Reserve RSSD ID | 271275 |
| Status | Active |
| Charter class | SI (STATE) |
| Ownership | Mutual |
| Domestic offices | 4 |
| Financials as of | June 30, 2026 |
How to find your Dean Co-operative Bank routing number
FDIC does not publish ABA routing numbers, and many banks use different routing numbers by state or by account type. The reliable places to find yours: the bottom left of a check from this bank, the "account details" screen in its online banking, or its official website at www.deanbank.com.
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Offices nearest to headquarters
| Dean Co-Operative Bank main office Franklin, MA |
21 Main St, 02038 |
| Pulaski Branch Bellingham, MA |
411 Pulaski Blvd, 02019 |
| Blackstone Branch Blackstone, MA |
8 Main St, 01504 |
| Mendon Branch Mendon, MA |
32 Hastings St, 01756 |
Where Dean Co-operative Bank has offices
Cities with the most Dean Co-operative Bank offices
Largest banks headquartered elsewhere in Massachusetts
| State Street Bank and Trust Company Boston | $412.62 billion |
| Eastern Bank Boston | $31.13 billion |
| Rockland Trust Company Rockland | $24.97 billion |
| Beacon Bank and Trust Boston | $22.20 billion |
| Salem Five Cents Savings Bank Salem | $8.82 billion |
| Needham Bank Needham | $7.42 billion |
| Cambridge Savings Bank Cambridge | $6.98 billion |
| Middlesex Savings Bank Natick | $6.15 billion |
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