Branch Network
Stonehambank Locations & Branches Stoneham, Massachusetts
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Stonehambank operates 2 branches from its headquarters in Stoneham, MA, .
Stonehambank branch network
Both branches are in MASSACHUSETTS, across 2 cities. Its largest office by deposits is the Stonehambank, A Co-Operative Bank office in Stoneham, MA, with $559.3M (72.3% of its branch deposits). It had the same number of branches on June 30, 2025.
Stonehambank at a glance
Its CET1 capital ratio was 12.51% at Q2 2026, above regulatory requirements.
- Total assets, Q2 2026
- $918.3M
- CET1 ratio, Q2 2026
- 12.51%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Established
- 1887
Full financial profile · Is Stonehambank safe? · Routing number
Deposit market share
Share of all FDIC-insured deposits held in each area, from the June 30, 2026 Summary of Deposits. Rank 1 is the largest holder. Shares are by bank charter, not by holding company.
| Area | Rank | Deposit share | Deposits |
|---|---|---|---|
| City: Stoneham, MA (1 branch) | 1 of 5 | 48.8% | $559.3M |
| State: MA (2 branches) | 64 of 112 | 0.1% | $773.2M |
Ranked by total assets among banks headquartered in the state: Largest banks in Massachusetts.
Share by county and metro area
Stonehambank's share of FDIC-insured deposits in the counties and metro areas where it has branches, from the June 30, 2026 Summary of Deposits. Up to the ten largest of each are shown, by the bank's deposits. Rank 1 is the largest holder. Banks only: credit unions are not in the Summary of Deposits.
Counties
| County | Rank | Deposit share | Deposits | County total |
|---|---|---|---|---|
| Middlesex, MA (2 branches) | 25 of 42 | 0.9% | $773.2M | $83.13B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Boston-Cambridge-Newton, MA-NH (2 branches) | 45 of 99 | 0.1% | $773.2M | $580.15B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Stonehambank, A Co-Operative Bank | Stoneham, MA | 02180 | $559.3M |
| Billerica Branch | Billerica, MA | 01821 | $213.9M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 26559) · FFIEC NIC profile (RSSD 954279)