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Martin County, FL Bank Deposit Market Share

Seacoast National Bank holds the largest share of deposits in Martin County, FL, 33.9%, followed by Wells Fargo Bank, N.A. (13.0%) and Bank of America, N.A. (11.7%). 16 institutions hold $7.57B at 41 offices as of June 30, 2026, up 1.1% from 2025.

Institutions: 16 Offices: 41 Deposits: $7.57B Survey: FDIC Summary of Deposits, June 30, 2026

Largest share changes since 2025

Gained: Pinnacle Bank (1.93 points, new to this market); Seacoast National Bank (1.81 points); Fifth Third Bank, N.A. (0.89 points, new to this market).

Lost: Bank of America, N.A. (-2.40 points); Truist Bank (-0.50 points); BankUnited, N.A. (-0.31 points).

# Institution Offices Deposits Market share Share change from 2025 Deposit change
1 Seacoast National Bank 6 $2.57B 33.94% +1.81 pts 6.8%
2 Wells Fargo Bank, N.A. 6 $986.5M 13.03% +0.27 pts 3.3%
3 Bank of America, N.A. 4 $886.9M 11.72% -2.40 pts -16.1%
4 JPMorgan Chase Bank, N.A. 5 $689.0M 9.10% +0.13 pts 2.6%
5 SouthState Bank, N.A. 3 $621.8M 8.22% +0.12 pts 2.6%
6 Truist Bank 4 $438.1M 5.79% -0.50 pts -6.9%
7 PNC Bank, N.A. 3 $365.9M 4.83% +0.25 pts 6.6%
8 TD Bank, N.A. 2 $299.5M 3.96% -0.15 pts -2.5%
9 The Northern Trust Company 1 $196.5M 2.60% +0.09 pts 4.6%
10 BankUnited, N.A. 1 $190.8M 2.52% -0.31 pts -9.8%
11 Pinnacle Bank 1 $145.8M 1.93% +1.93 pts New
12 Fifth Third Bank, N.A. 1 $67.6M 0.89% +0.89 pts New
13 First-Citizens Bank & Trust Company 1 $64.1M 0.85% -0.06 pts -5.6%
14 United Community Bank 1 $28.0M 0.37% -0.15 pts -27.4%
15 TrustCo Bank 1 $19.2M 0.25% +0.02 pts 11.7%
16 Wilmington Trust, N.A. 1 $0 <0.01% 0.00 pts New

About this list

Deposits are those held at each institution's offices in Martin County as of June 30, 2026, from the FDIC Summary of Deposits, whatever state the institution is headquartered in. Market share is the institution's deposits divided by all deposits in the market. Shares are by bank charter, not rolled up to the holding company, and cover FDIC-insured institutions only, so credit unions are not included. Each office is placed in its county and metro area by the FDIC branch directory; the few offices the directory does not list are left out of the market and of every share.

Share change compares the institution's share in 2025 and 2026 in percentage points. Deposit change compares its deposits here in the two years and includes deposits that moved through mergers and branch sales; "New" means it had no offices here a year earlier. Offices that closed during the year are placed by their ZIP code or city.

Wider markets

Florida deposits by institution Port St. Lucie, FL metro area Florida bank directory

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