FDIC-insured bank
Chelsea Groton Bank — Groton, CT
Bank headquartered in Groton, Connecticut.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 904 Poquonnock Rd Groton, CT 06340 |
| County | Southeastern Connecticut |
| Website | www.chelseagroton.com |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 18238 |
| Federal Reserve RSSD ID | 345309 |
| Status | Active |
| Charter class | SI (STATE) |
| Ownership | Mutual |
| Domestic offices | 14 |
| Financials as of | June 30, 2026 |
How to find your Chelsea Groton 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.chelseagroton.com.
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Offices nearest to headquarters
| Chelsea Groton Bank main office Groton, CT |
904 Poquonnock Rd, 06340 |
| Center Groton Branch Groton, CT |
904 Poquonnock Rd, 06340 |
| New London Branch New London, CT |
1 Montauk Ave, 06320 |
| Waterford Branch Waterford, CT |
157 Boston Post Rd, 06385 |
| Mystic Branch Mystic, CT |
2 Water St, 06355 |
| Mystic Autobank Express Branch Mystic, CT |
50 N Stonington Rd, 06355 |
| Niantic Branch Niantic, CT |
21 Pennsylvania Ave, 06357 |
| West Main Street Branch Norwich, CT |
444 W Main St, 06360 |
| Downtown Norwich Branch Norwich, CT |
55 Main St, 06360 |
| North Stonington Branch North Stonington, CT |
391 Norwich Westerly Rd, 06359 |
| Norwichtown Branch Norwich, CT |
50 Town St, 06360 |
| Pawcatuck Branch Pawcatuck, CT |
116 W Broad St, 06379 |
14 offices in total. Browse them by city through the state pages.
Where Chelsea Groton Bank has offices
Cities with the most Chelsea Groton Bank offices
Largest banks headquartered elsewhere in Connecticut
| Liberty Bank Middletown | $9.38 billion |
| Bankwell Bank New Canaan | $3.47 billion |
| Union Savings Bank Danbury | $3.30 billion |
| Ion Bank Naugatuck | $2.78 billion |
| First County Bank Stamford | $2.42 billion |
| Thomaston Savings Bank Thomaston | $1.93 billion |
| Fairfield County Bank Ridgefield | $1.92 billion |
| Newtown Savings Bank Newtown | $1.87 billion |
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