Martin County, Florida, a core county of the Miami-Port St. Lucie-Fort Lauderdale, FL market, holds $7.5B in deposits across 16 insured institutions and 41 branches. Seacoast National Bank is the largest deposit holder at 32.1% share. The top three banks hold 59% of deposits, which places the county in the Moderate band. Deposits have grown 21.4% since 2020 while the branch count fell by 12.8%. It produces $9.6B of output, ranking #375 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: 47 in 2020 to 41 in 2025. Institutions: 15 to 16. Top-three share: 59% to 59%.
Institutions by deposits
| Institution | Deposits | Share | 5‑yr deposits |
|---|---|---|---|
| Seacoast National Bank | $2.4B | 32.1% | +31% |
| Bank of America | $1.1B | 14.1% | +9% |
| Wells Fargo Bank | $955M | 12.7% | +15% |
| JPMorgan Chase Bank | $672M | 9.0% | +56% |
| SouthState Bank | $606M | 8.1% | +34% |
| Truist Bank | $471M | 6.3% | +2% |
| PNC Bank | $343M | 4.6% | -2% |
| TD Bank | $307M | 4.1% | +21% |
| BankUnited | $212M | 2.8% | -6% |
| The Northern Trust Company | $188M | 2.5% | +60% |
| Synovus Bank | $145M | 1.9% | -12% |
| First-Citizens Bank & Trust Company | $68M | 0.9% | +93% |
| United Community Bank | $39M | 0.5% | no 2020 presence |
| TrustCo Bank | $17M | 0.2% | -19% |
| First Southern Bank | $13M | 0.2% | no 2020 presence |
| Wilmington Trust | $0M | 0.0% | no 2020 presence |
The 16 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 Miami-Port St. Lucie-Fort Lauderdale market
Martin County is one of 8 counties that make up the Miami-Port St. Lucie-Fort Lauderdale, FL market, a Combined Statistical Area (ranked #12 of 293 U.S. markets by economic output). It produces 2.0% of the market’s output and holds 2.1% of its deposits.
| Measure | Martin County | Share of parent market |
|---|---|---|
| 2024 GDP | $9.6B | 2.0% |
| Deposits | $7.5B | 2.1% |
| Population | 166,272 | 2.3% |
View the full Miami-Port St. Lucie-Fort Lauderdale market profile →
Recruiting in Martin 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 Martin County.
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