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Wrentham Co-Operative Bank Locations & Branches Wrentham, Massachusetts
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Wrentham Co-Operative Bank operates 3 branches from its headquarters in Wrentham, MA, .
Wrentham Co-Operative Bank branch network
All 3 branches are in MASSACHUSETTS, across 2 cities. Wrentham, MA has the most of its branches, 2. Its largest office by deposits is its main office in Wrentham, MA, with $122.2M (69.5% of its branch deposits). It had the same number of branches on June 30, 2025.
Wrentham Co-Operative Bank at a glance
Its CET1 capital ratio was 20.38% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $192.6M
- CET1 ratio, Q2 2026
- 20.38%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1901
Full financial profile · Is Wrentham Co-Operative Bank safe? · Wrentham Co-Operative Bank call report · 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: Wrentham, MA (2 branches) | 1 of 2 | 57.9% | $153.0M |
| State: MA (3 branches) | 96 of 112 | <0.1% | $175.8M |
Ranked by total assets among banks headquartered in the state: Largest banks in Massachusetts.
Share by county and metro area
Wrentham Co-Operative Bank'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 |
|---|---|---|---|---|
| Norfolk, MA (3 branches) | 22 of 35 | 0.4% | $175.8M | $50.19B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Boston-Cambridge-Newton, MA-NH (3 branches) | 68 of 99 | <0.1% | $175.8M | $580.15B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Wrentham Co-Operative Bank (main office) | Wrentham, MA | 02093 | $122.2M |
| South Street Branch | Wrentham, MA | 02093 | $30.8M |
| Norfolk Branch | Norfolk, MA | 02056 | $22.8M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 26576) · FFIEC NIC profile (RSSD 948278)