Plymouth County, Massachusetts, a core county of the Boston-Worcester-Providence, MA-RI-NH market, holds $18.5B in deposits across 17 insured institutions and 127 branches. Rockland Trust Company is the largest deposit holder at 28.2% share. The top three banks hold 57% of deposits, which places the county in the Moderate band. Deposits have grown 4.4% since 2021 while the branch count fell by 10.6%. It produced $28.4B of real gross domestic product in 2024, 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: 142 in 2021 to 127 in 2026. Institutions: 19 to 17. Top-three share: 47% to 57%.
Institutions by deposits
| Institution | Deposits | Share | 5‑yr deposits |
|---|---|---|---|
| Rockland Trust Company | $5.2B | 28.2% | +20% |
| Eastern Bank | $3.3B | 17.9% | -11% |
| Hingham Institution for Savings | $2.0B | 10.6% | -2% |
| Citizens Bank | $1.7B | 9.4% | -3% |
| Bank of America | $1.4B | 7.8% | -12% |
| Santander Bank | $1.2B | 6.6% | +3% |
| North Easton Savings Bank | $778M | 4.2% | +59% |
| Bluestone Bank | $682M | 3.7% | +13% |
| South Shore Bank | $400M | 2.2% | +47% |
| Coastal Heritage Bank | $368M | 2.0% | -4% |
| TD Bank | $361M | 1.9% | -6% |
| The Cape Cod Five Cents Savings Bank | $242M | 1.3% | +160% |
| TruNorth Bank | $197M | 1.1% | +8% |
| Webster Bank | $197M | 1.1% | +26% |
| JPMorgan Chase Bank | $191M | 1.0% | +1,051% |
| MountainOne Bank | $150M | 0.8% | -30% |
| Mechanics Cooperative Bank | $60M | 0.3% | +19% |
The 17 insured institutions with a branch presence in this county, per the FDIC Summary of Deposits, June 30, 2026. Five-year change compares the same institution’s county deposits in 2021 and 2026. 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 2021 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 2.6% of its deposits.
| Measure | Plymouth County | Share of parent market |
|---|---|---|
| 2024 GDP | $28.4B | 3.9% |
| Deposits | $18.5B | 2.6% |
| 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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