Houston's hometown banks quietly turned 2025 into a banner year, raking in billions more in customer cash. The fastest-growing institutions in the region reported a combined $44 billion in deposits as of Dec. 31, 2025, and several regional lenders are already using that momentum to bulk up branches and deepen customer relationships. That fresh firepower is reshaping the battle for both business accounts and personal deposits across the metro.
Report, sources and scope
The new scoreboard comes from the Houston Business Journal, which built its ranking from federal deposit records and sorted banks by year-over-year dollar change in deposits. Reporter Wyatt Loy led the research. The print edition highlights 20 banks, while an expanded online version stretches the list to 33 companies.
To qualify, a bank must be incorporated and headquartered in one of the 10 counties the paper tracks in the Houston region. The deposit figures and broader national context also show up in the FDIC fourth-quarter 2025 report.
Top winners
Two hometown standouts grabbed particular attention on the list: Stellar Bancorp and Third Coast Bank, which landed among the biggest deposit-gainers in the ranking. Stellar reported $9.02 billion in total deposits at Dec. 31, 2025, while Third Coast reported $4.63 billion at year-end in their respective earnings releases.
The underlying bank-by-bank numbers that fed into the ranking are detailed in Stellar's fourth-quarter earnings release and in Third Coast Bancshares' fourth-quarter and full-year financial results.
Why deposits climbed
Local deposit growth reflects a familiar but potent mix: organic customer gains, branch expansion, and sharper competition for business relationships and uninsured liquidity. Regulators and banks have been flagging those same forces in recent reports, and Houston's numbers fit neatly into that narrative.
Acquirers are not shy about saying the quiet part out loud. When Prosperity Bancshares announced a merger agreement with Stellar in late January, it pointed to Stellar's "envious noninterest-bearing deposit mix" as a key attraction. The deal is another reminder that a strong deposit base has become a prime strategic asset for Texas banks. The related SEC filing lays out how Prosperity is thinking about those dynamics.
What it means for Houston
For customers, bigger local deposit bases can translate into more lending capacity, more branch options, and at times tougher competition on rates and product features. Banks like Third Coast have shown how deposit growth can fuel loan expansion and bolster earnings, while mergers raise the prospect of branch consolidation in some parts of the metro.
Local businesses and neighborhoods will be watching to see how these institutions turn deposit momentum into on-the-ground changes, including new loans, hiring, and additional services.
Methodology and who’s included
According to HBJ, rankings are based on year-over-year dollar change in deposits. The list includes only banks that are both incorporated and headquartered in the Houston-area counties the publication tracks. The ranking is drawn from federal deposit records along with the newspaper's print and digital databases.
HBJ's full ranked breakdown and detailed qualifying rules are available in its report from the Houston Business Journal.
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