Plymouth County, Massachusetts, a core county of the Boston-Worcester-Providence, MA-RI-NH market, holds $19.2B in deposits across 18 insured institutions and 132 branches. Rockland Trust Company is the largest deposit holder at 26.9% share. The top three banks hold 49% of deposits, which places the county in the Moderate band. Deposits have grown 23.9% since 2020 while the branch count fell by 10.8%. It produces $28.4B of output, ranking #165 of the 1,523 ranked counties by economic output.
Ranks show where the county stands among the 1,523 ranked counties (those within a Combined or Metropolitan Statistical Area that have a branch). They describe relative position, not a rating of market quality or suitability.
Deposit trend
Branches: 148 in 2020 to 132 in 2025. Institutions: 20 to 18. Top-three share: 48% to 49%.
Institutions by deposits
| Institution | Deposits | Share | 5‑yr deposits |
|---|---|---|---|
| Rockland Trust Company | $5.2B | 26.9% | +34% |
| HarborOne Bank | $2.4B | 12.5% | +27% |
| Hingham Institution for Savings | $1.9B | 9.9% | +13% |
| Eastern Bank | $1.8B | 9.5% | +28% |
| Citizens Bank | $1.7B | 8.8% | +3% |
| Bank of America | $1.4B | 7.4% | +29% |
| Santander Bank | $1.2B | 6.5% | +15% |
| North Easton Savings Bank | $697M | 3.6% | +53% |
| Bluestone Bank | $652M | 3.4% | +32% |
| Coastal Heritage Bank | $398M | 2.1% | +13% |
| South Shore Bank | $392M | 2.0% | +51% |
| TD Bank | $365M | 1.9% | +13% |
| The Cape Cod Five Cents Savings Bank | $227M | 1.2% | +159% |
| Webster Bank | $203M | 1.1% | +9% |
| North Shore Bank, a Co-operative Bank | $195M | 1.0% | no 2020 presence |
| MountainOne Bank | $183M | 1.0% | -18% |
| JPMorgan Chase Bank | $154M | 0.8% | +4,439% |
| Mechanics Cooperative Bank | $55M | 0.3% | +27% |
The 18 insured institutions with a branch presence in this county, per the FDIC Summary of Deposits, June 30, 2025. Five-year change compares the same institution’s county deposits in 2020 and 2025. Institutions are tracked by FDIC certificate number, and where an institution acquired another bank, the acquired bank’s prior deposits are folded into the baseline so the change reflects the combined, continuing franchise rather than reading as new. “No 2020 presence” means neither the institution nor a bank it later absorbed reported deposits in this county that year. Deposit figures are nominal and are not adjusted for inflation.
Part of the Boston-Worcester-Providence market
Plymouth County is one of 18 counties that make up the Boston-Worcester-Providence, MA-RI-NH market, a Combined Statistical Area (ranked #6 of 293 U.S. markets by economic output). It produces 3.9% of the market’s output and holds 2.9% of its deposits.
| Measure | Plymouth County | Share of parent market |
|---|---|---|
| 2024 GDP | $28.4B | 3.9% |
| Deposits | $19.2B | 2.9% |
| Population | 546,829 | 6.4% |
View the full Boston-Worcester-Providence market profile →
Recruiting in Plymouth County
Deposits are split among a moderate number of institutions. Who holds the deposits, and how contested the market is, shapes both the runway for growth and the competition you would be recruiting against. We recruit commercial relationship managers, banking teams, and market leaders for banks building in markets like Plymouth County.
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