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San Patricio County, TX Bank Deposit Market Share

Frost Bank holds the largest share of deposits in San Patricio County, TX, 31.7%, followed by Prosperity Bank (25.4%) and Wells Fargo Bank, N.A. (14.5%). 8 institutions hold $913.9M at 19 offices as of June 30, 2026, up 2.8% from 2025.

Institutions: 8 Offices: 19 Deposits: $913.9M Survey: FDIC Summary of Deposits, June 30, 2026

Largest share changes since 2025

Gained: First State Bank of Odem (0.83 points); First Community Bank (0.19 points); Prosperity Bank (0.16 points).

Lost: Frost Bank (-0.81 points); Valuebank Texas (-0.30 points); International Bank of Commerce (-0.28 points).

# Institution Offices Deposits Market share Share change from 2025 Deposit change
1 Frost Bank 1 $289.6M 31.69% -0.81 pts 0.2%
2 Prosperity Bank 5 $231.9M 25.38% +0.16 pts 3.4%
3 Wells Fargo Bank, N.A. 1 $132.2M 14.47% +0.14 pts 3.8%
4 First State Bank of Odem 2 $98.1M 10.74% +0.83 pts 11.3%
5 Valuebank Texas 2 $65.0M 7.12% -0.30 pts -1.4%
6 First Community Bank 2 $44.0M 4.82% +0.19 pts 7.0%
7 International Bank of Commerce 4 $42.2M 4.61% -0.28 pts -3.0%
8 First National Bank Texas dba First Convenience Bank 2 $10.8M 1.18% +0.07 pts 9.4%

About this list

Deposits are those held at each institution's offices in San Patricio 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

Texas deposits by institution Corpus Christi, TX metro area Texas bank directory

Other counties in Texas

Dallas CountyHarris CountyDenton CountyBexar CountyTarrant CountyTravis CountyCollin CountyFort Bend CountyMontgomery CountyHidalgo CountyLubbock CountyWilliamson CountyEl Paso CountySmith CountyMidland CountyWebb CountyMclennan CountyPotter CountyBrazos CountyGalveston CountyNueces CountyBrazoria CountyCameron CountyJefferson CountyBell CountyTaylor CountyGregg CountyGrayson CountyWichita CountyParker CountyEctor CountyEllis CountyRandall CountyComal CountyHays CountyTom Green CountyJohnson CountyRockwall CountyKaufman CountyGuadalupe County

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