Lists · Deposits by county
Cameron County, TX Bank Deposit Market Share
International Bank of Commerce holds the largest share of deposits in Cameron County, TX, 21.8%, followed by Wells Fargo Bank, N.A. (16.0%) and Texas Regional Bank (11.5%). 19 institutions hold $6.60B at 73 offices as of June 30, 2026, up 4.0% from 2025.
Largest share changes since 2025
Gained: International Bank of Commerce (0.41 points); Texas National Bank (0.35 points); Rio Bank (0.34 points).
Lost: PlainsCapital Bank (-0.46 points); Lone Star National Bank (-0.39 points); First Community Bank (-0.26 points).
| # | Institution | Deposits | Market share | Share change from 2025 |
|---|---|---|---|---|
| 1 | International Bank of Commerce | $1.44B | 21.79% | +0.41 pts |
| 2 | Wells Fargo Bank, N.A. | $1.06B | 16.03% | +0.15 pts |
| 3 | Texas Regional Bank | $761.0M | 11.53% | -0.12 pts |
| 4 | JPMorgan Chase Bank, N.A. | $573.0M | 8.68% | -0.13 pts |
| 5 | First Community Bank | $546.2M | 8.28% | -0.26 pts |
| 6 | PNC Bank, N.A. | $535.9M | 8.12% | -0.04 pts |
| 7 | Frost Bank | $327.5M | 4.96% | +0.29 pts |
| 8 | PlainsCapital Bank | $325.6M | 4.93% | -0.46 pts |
| 9 | Lone Star National Bank | $298.2M | 4.52% | -0.39 pts |
| 10 | Bank of America, N.A. | $232.4M | 3.52% | -0.08 pts |
| 11 | Texas National Bank | $102.7M | 1.56% | +0.35 pts |
| 12 | Falcon International Bank | $102.2M | 1.55% | +0.14 pts |
| 13 | Rio Bank | $97.7M | 1.48% | +0.34 pts |
| 14 | First National Bank of South Padre Island | $67.1M | 1.02% | -0.14 pts |
| 15 | Vantage Bank Texas | $64.1M | 0.97% | -0.06 pts |
| 16 | Texas Community Bank | $47.6M | 0.72% | +0.02 pts |
| 17 | Woodforest National Bank | $12.9M | 0.20% | -0.01 pts |
| 18 | First National Bank Texas dba First Convenience Bank | $9.1M | 0.14% | -0.01 pts |
| 19 | Bank of South Texas | $1.1M | 0.02% | +0.02 pts |
About this list
Deposits are those held at each institution's offices in Cameron 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.
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Other counties in Texas
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