South Shore Bank
South Weymouth, Massachusetts, Norfolk County
$2.5B in total assets, the 513th largest of 4,309 US banks and 23rd of 95 headquartered in Massachusetts.
- FDIC certificate
- 90303
- Established
- 1833
- Owned by
- Charlesbridge Mhc
- Primary regulator
- FED
- Website
- www.southshorebank.com
At a glance
Compared with 46 banks headquartered in Massachusetts with $1 billion to $10 billion in assets, as of June 30, 2026.
| Measure | This bank | Percentile | Peer range, middle 90% | Peer median |
|---|---|---|---|---|
| Total assets | $2.5B | 61% | $1.9B | |
| Loans | $1.7B | 59% | $1.5B | |
| Deposits | $2.2B | 65% | $1.6B | |
| Return on assets | 0.78% | 59% | 0.72% | |
| Net interest margin | 2.86% | 39% | 3.04% | |
| Efficiency ratio | 68.9% | 44% | 69.8% | |
| Equity to assets | 9.62% | 30% | 10.98% | |
| Loans to deposits | 77% | 7% | 100% |
Growth
Total assets grew 4.8% a year over the last 5 years and 9.3% a year over 10 years, including 1 acquisition in the last 10 years.
Acquisitions
| Closed | Acquired bank | Assets at acquisition |
|---|---|---|
| Nov 2017 | The Braintree Co-operative Bank Braintree, MA | $257M |
| Feb 2004 | Horizon Bank and Trust Company Braintree, MA | $131M |
| Oct 1997 | South Weymouth Savings Bank South Weymouth, MA | $286M |
Where they operate
13 branches in 2 counties.
Largest markets by deposits
| County | Deposits | Market share | Rank |
|---|---|---|---|
| Norfolk County, MA | $1.8B | 3.6% | 8 of 35 |
| Plymouth County, MA | $400M | 2.2% | 9 of 17 |
Deposits by branch from the FDIC Summary of Deposits, June 2026. Rank among all banks with branches in that county.
Branch history since 2016
Net loss of 1 branch since 2016 (14 to 13, −7.1%). 4 opened, 2 acquired, 7 closed or sold.
| Period | What happened | Opened or acquired | Closed or sold | Net change | Branches at end |
|---|---|---|---|---|---|
| Start of 2016 | Starting point | 14 | |||
| 2016 | Opened Quincy | 1 | 0 | +1 | 15 |
| 2017 | Acquired The Braintree Co-operative BankOpened Quincy | 3 | 0 | +3 | 18 |
| 2018 | Closed Braintree and Quincy | 0 | 2 | −2 | 16 |
| 2019 | Closed Quincy and Weymouth | 0 | 2 | −2 | 14 |
| 2021 | Closed Braintree and South Weymouth | 0 | 2 | −2 | 12 |
| 2022 | Opened HanoverClosed Pembroke | 1 | 1 | 0 | 12 |
| 2023 | Opened Brockton | 1 | 0 | +1 | 13 |
Balance sheet and earnings
Loans by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Commercial real estate | 39% | 26% | |
| 1-4 family residential | 24% | 46% | |
| Business (C&I) | 18% | 7% | |
| Multifamily | 9% | 10% | |
| Construction and land | 8% | 7% | |
| Consumer | 0% | 2% | |
| Other | 2% | 1% |
Deposits by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Other interest-bearing | 57% | 52% | |
| Time deposits | 23% | 32% | |
| Noninterest-bearing | 20% | 16% |
Brokered deposits are 0.0% of deposits (peers 3.9%).
Return on assets
Trailing four quarters, with the peer median.
Credit and capital
| This bank | Peer median | |
|---|---|---|
| Noncurrent loans | 0.23% | 0.59% |
| Net charge-offs, annualized | -0.00% | 0.01% |
| Reserves to loans | 0.91% | 0.84% |
| Leverage ratio | 10.10% | 11.19% |
Noncurrent loans exclude government-guaranteed portions.
Related banks
Similar size in Massachusetts
Largest competitors in Norfolk County, MA
Figures as of June 30, 2026 from the bank's Call Report, FDIC structure and branch data, and the Federal Reserve. Short link: bankingstats.com/south-shore