Chelsea Groton Bank
Chelsea Groton Bank is an FDIC-insured savings bank headquartered in Norwich, CT, supervised by the FDIC, with $1.77B in total assets at Q3 2026, up 0.2% from Q3 2025, the 10th largest of 27 banks headquartered in Connecticut. It was established in 1854 and holds FDIC certificate 18238. Its CET1 capital ratio was 22.57% at Q3 2026, comfortably above the 7% level required once the capital conservation buffer is included.
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Data as of · sourced from FFIEC call reports. How we update
- Charter
- Savings bank
- Regulator
- FDIC
- Deposit insurance
- FDIC
- FDIC certificate
- 18238
- Headquarters
- Norwich, CT
- Established
- 1854
- Total assets, Q3 2026
- $1.77B
- Assets vs Q3 2025
- +0.2%
- CET1 ratio, Q3 2026
- 22.57%
- Domestic offices
- 14 branches
- Routing number
- 211173357
- Safety and soundness
- Is Chelsea Groton Bank safe?
- Latest call report
- Q3 2026, FFIEC 041 · Chelsea Groton Bank call report
- Asset rank in state
- 10th of 27 in Connecticut
Chelsea Groton Bank, based in Norwich, Connecticut, reported $1.8 billion in assets at September 30, 2026. It pays an average of 0.94% on its deposits and borrowings, about half the median of 2.05% for the 887 banks with $1 billion to $10 billion in assets. It also holds common equity equal to 22.57% of its risk-weighted assets, higher than about 9 in 10 banks its size (median 13.62%).
As of September 30, 2026, Chelsea Groton Bank reported a CET1 capital ratio of 22.57%, a return on assets of 1.93%, a nonperforming-loan ratio of 0.49% and a Texas ratio of 2.24%. The figures come from its call report filed with the FFIEC.
By total assets at Q3 2026, Chelsea Groton Bank is the 10th largest of the 27 banks headquartered in Connecticut. From Q2 2026 to Q3 2026, its total assets rose 0.9% to $1.77B, loans rose 1.1% and deposits rose 7.3%. Its loan book on September 30, 2026 was led by 1-4 family residential loans, at 69.8% of total loans, followed by non-owner-occupied commercial real estate loans at 7.7%. The FDIC Summary of Deposits lists 14 offices for it, in 10 cities in CT; its Groton 2 offices book 27% of its branch deposits. On its Q3 2026 call report, Chelsea Groton Bank meets every capital ratio test for well capitalized.
Headquarters Profile
- Address
- 904 Poquonnock Rd, Norwich, CT 06340
- County
- Southeastern Connecticut
- Metro Area
- Norwich-New London-Willimantic, CT
- Charter
- State-chartered stock savings bank, FDIC-supervised
- Primary Regulator
- FDIC
- FDIC Region
- New York (Region 2)
- Federal Reserve member
- —
- Federal Reserve district
- District 1, Boston
- Fiduciary (trust) powers
- —
- Call Report form
- FFIEC 041
- Established
- 1854
- Former names
- The Chelsea Groton Savings Bank (1982-2010); Groton Savings Bank (1978-1982)
- Domestic offices
- 14 branches
- Employees (FTE)
- 199
- Domestic deposits
- $1.28B
- Allowance for credit losses
- $12.6M
- Net charge-offs (YTD)
- $2K
- Average total assets
- $1.83B
- Average total loans
- $1.35B
- Average interest-bearing deposits
- $929.9M
- Tax status
- C corporation
- Ownership
- Mutual
- Community bank
- Yes
- FDIC-insured since
- July 1, 1960
- FDIC Cert
- 18238
- Fed RSSD
- 345309
- Website
- www.chelseagroton.com →
Profitability
Q3 annualizedCapital & Liquidity
Balance Sheet
Income Statement
Operating & Funding
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Ratios tagged annualized use the Q3 income alone. The UBPR and FDIC annualize the year to date instead. How we compute these figures
Quarterly trends
Over the 12 quarters to Q3 2026, Chelsea Groton Bank's total assets ran between $1.63B (Q1 2024) and $1.77B (Q3 2026), and it earned a profit in 11 of the 12 quarters. The line under each chart compares Q3 2026 with Q3 2025. How these charts are built
$1.77B total assets against $1.76B; $1.49B total liabilities against $1.50B.
$1.33B net loans and leases against $1.29B; $1.28B total deposits against $1.21B.
$283.4M securities against $315.0M; $37.9M cash and balances due against $45.6M.
$20.4M total interest income against $18.8M; $3.8M total interest expense against $4.3M.
$16.6M net interest income against $14.5M.
$2.8M total noninterest income against $2.6M; $10.9M total noninterest expense against $10.6M.
$290K provision for credit losses against $249K.
$8.9M net income against $8.5M.
1.93% return on assets against 1.92%; 3.93% net interest margin against 3.53%.
22.57% CET1 capital ratio against 20.85%; 16.58% tier 1 leverage ratio against 15.92%.
Inside the full Chelsea Groton Bank terminal
21 quarters of trends · 8 tabs · peer percentiles · watchlist alerts
Unlock this bank, freeWatch flags
Automated conditions triggered on this bank's latest filing. Advisory only; see the source metric pages for full context. Each flag is tagged Regulatory when it cites an official supervisory threshold, or BRR analysis when it's our own band, informed by our data and models.
Loans outstanding are at or above total deposits. The bank reports little borrowing or brokered funding, so the difference is carried mainly by equity and other liabilities. Worth watching if loan growth continues to outpace deposits. Industry heuristic, not a supervisory threshold.
Chelsea Groton Bank rankings
Its closest position to the top of a national ranking is 218 of 2,021, for CET1 ratio; its furthest is 697 of 973, for uninsured deposits.
Quarterly trend: last 8 quarters
Across the 8 quarters to Q3 2026, its return on assets ran from -0.10% (Q4 2024) to 2.01% (Q2 2025) and its net interest margin ran from 3.36% (Q1 2025) to 3.93% (Q3 2026).
| Quarter | CET1 | ROA | NPL | Texas | NIM |
|---|---|---|---|---|---|
| Q3 2026 | 22.57% | 1.93% | 0.49% | 2.24% | 3.93% |
| Q2 2026 | 21.99% | 1.77% | 0.48% | 2.19% | 3.77% |
| Q1 2026 | 21.63% | 0.97% | 0.56% | 2.56% | 3.73% |
| Q4 2025 | 21.17% | 0.41% | 0.53% | 2.48% | 3.62% |
| Q3 2025 | 20.85% | 1.92% | 0.54% | 2.55% | 3.53% |
| Q2 2025 | 20.72% | 2.01% | 0.73% | 3.46% | 3.48% |
| Q1 2025 | 20.38% | 1.20% | 0.31% | 1.54% | 3.36% |
| Q4 2024 | 19.81% | -0.10% | 0.20% | 1.04% | 3.44% |
Swipe the table sideways to see every column.
Branch Network
View all 14 branches → Branch count from the FDIC Summary of Deposits, June 30, 2026. The domestic office count above is the FDIC's current figure, so the two can differ.
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Chelsea Groton Bank (main office) | Groton , CT | 06340 | $261.2M |
| Mystic Branch | Mystic , CT | 06355 | $139.8M |
| New London Branch | New London , CT | 06320 | $106.1M |
| Norwichtown Branch | Norwich , CT | 06360 | $101.5M |
| Niantic Branch | Niantic , CT | 06357 | $86.9M |
| Pawcatuck Branch | Pawcatuck , CT | 06379 | $83.5M |
| North Stonington Branch | North Stonington , CT | 06359 | $71.9M |
| Center Groton Branch | Groton , CT | 06340 | $64.2M |
| Waterford Branch | Waterford , CT | 06385 | $61.6M |
| West Main Street Branch | Norwich , CT | 06360 | $59.3M |
| Sprague Branch | Baltic , CT | 06330 | $59.1M |
| Salem Branch | Salem , CT | 06420 | $50.1M |
| Downtown Norwich Branch | Norwich , CT | 06360 | $47.2M |
| Mystic Autobank Express Branch | Mystic , CT | 06355 | $0 |
Events & Regulatory History
Mergers, charter changes, enforcement actions, FDIC assistance, and (if applicable) failure events recorded against this institution. Click a year to see what else was happening across US banking that year.
| Date | Category | Event | Source |
|---|---|---|---|
| May 20, 1994 | Structure Change | Acquired Coastal Federal Savings Bank Failure, Government Assistance Provided for the acquired bank | FFIEC NIC |
| August 1, 1982 | Structure Change | Acquired The Chelsea Savings Bank Charter Discontinued (Merger or Purchase & Assumption) for the acquired bank | FFIEC NIC |
| July 31, 1982 | Merger | Participated in Absorption/Consolidation/Merger | FDIC |
Sourced from the bank event history (FDIC, Federal Reserve NIC, OCC, and OTS). Showing the most recent 3 events.
Regulatory record
Facts as filed or published, not a rating.
- Deposit market share
- 0.7% of deposits in CT, rank 22 of 46 institutions
- Period: June 30, 2026. Source: FDIC Summary of Deposits.
- Mortgage lending (HMDA)
- 611 applications, 423 loans originated, $194.8M originated, across 4 states
- Period: Calendar year 2025. Source: FFIEC HMDA loan application register.
- SBA 7(a) lending
- 3 loans, $466K approved, $155K average. 0.00% of that year's loans have since been charged off
- Period: Federal fiscal year 2022 (October to September). Source: SBA 7(a) and 504 loan data (FOIA).
- Not on file
- Enforcement actions, Consumer complaints, CFPB enforcement, CRA examination rating. No record from these sources, which is not the same as a clean record. Sources
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Frequently asked about Chelsea Groton Bank
What are Chelsea Groton Bank's total assets?
As of the Q3 2026 filing, Chelsea Groton Bank reported total assets of $1.77 billion in its FFIEC call report.
Where is Chelsea Groton Bank headquartered?
It is headquartered in Norwich, CT, United States.
When was Chelsea Groton Bank founded?
It was established in 1854, per the FDIC institution directory.
Is Chelsea Groton Bank FDIC-insured?
Yes. It is an FDIC-insured savings bank (FDIC Certificate #18238). Deposits are insured up to $250,000 per depositor, per insured bank, for each account ownership category, per FDIC rules.
Who regulates Chelsea Groton Bank?
Chelsea Groton Bank's primary federal regulator is the FDIC.
What is Chelsea Groton Bank's CET1 capital ratio?
It reported a Common Equity Tier 1 (CET1) capital ratio of 22.57% in its Q3 2026 call report, comfortably above the 7% level required once the capital conservation buffer is included.
How many branches does Chelsea Groton Bank operate?
It operates 14 domestic offices, per the FDIC institution directory. That count includes administrative and limited-service offices as well as full-service branches.
What is Chelsea Groton Bank's Texas Ratio?
Its Texas Ratio is 2.24% in its Q3 2026 call report, within the healthy range (at or below 50%, the level at which problem assets reach half of the capital cushion). The Texas Ratio measures nonperforming assets against the bank's capital and reserves.
What was Chelsea Groton Bank previously called?
The charter now named Chelsea Groton Bank has also operated as The Chelsea Groton Savings Bank (1982-2010), Groton Savings Bank (1978-1982), per FDIC structure-change records.
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