Branch Network
Third Coast Bank Locations & Branches Humble, Texas
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Third Coast Bank operates 21 branches from its headquarters in Humble, TX, .
Third Coast Bank branch network
All 21 branches are in TEXAS, across 19 cities. Austin, TX has the most of its branches, 3. Its largest office by deposits is its main office in Humble, TX, with $3.19B (54.5% of its branch deposits). On June 30, 2025 it had 18 branches, 3 fewer than in 2026.
Third Coast Bank at a glance
Its CET1 capital ratio was 12.10% at Q2 2026, above regulatory requirements.
- Total assets, Q2 2026
- $6.73B
- CET1 ratio, Q2 2026
- 12.10%
- Deposit insurance
- FDIC
- Regulator
- Federal Reserve
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 2008
Full financial profile · Is Third Coast Bank safe? · Third Coast Bank call report · Routing number
Deposit market share
Share of all FDIC-insured deposits held in each area, from the June 30, 2026 Summary of Deposits. Rank 1 is the largest holder. Shares are by bank charter, not by holding company.
| Area | Rank | Deposit share | Deposits |
|---|---|---|---|
| City: Humble, TX (1 branch) | 1 of 17 | 52.5% | $3.19B |
| State: TX (21 branches) | 30 of 441 | 0.4% | $5.86B |
Ranked by total assets among banks headquartered in the state: Largest banks in Texas.
Share by county and metro area
Third Coast Bank's share of FDIC-insured deposits in the counties and metro areas where it has branches, from the June 30, 2026 Summary of Deposits. Up to the ten largest of each are shown, by the bank's deposits. Rank 1 is the largest holder. Banks only: credit unions are not in the Summary of Deposits.
Counties
| County | Rank | Deposit share | Deposits | County total |
|---|---|---|---|---|
| Harris, TX (3 branches) | 9 of 87 | 1.3% | $3.95B | $302.92B |
| Travis, TX (3 branches) | 12 of 56 | 1.3% | $687.6M | $51.26B |
| Jefferson, TX (2 branches) | 10 of 18 | 2.4% | $144.3M | $6.03B |
| Wilson, TX (1 branch) | 2 of 6 | 21.1% | $143.1M | $678.6M |
| Brazoria, TX (2 branches) | 17 of 27 | 1.7% | $116.1M | $6.73B |
| Tarrant, TX (1 branch) | 52 of 73 | 0.1% | $89.8M | $65.88B |
| Runnels, TX (1 branch) | 3 of 5 | 23.1% | $89.0M | $384.9M |
| Bexar, TX (1 branch) | 33 of 50 | <0.1% | $66.7M | $164.05B |
| Montgomery, TX (2 branches) | 22 of 36 | 0.4% | $64.3M | $18.26B |
| Collin, TX (1 branch) | 56 of 69 | 0.1% | $47.5M | $39.76B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Houston-The Woodlands-Sugar Land, TX (7 branches) | 12 of 104 | 1.1% | $4.13B | $359.69B |
| Austin-Round Rock-Georgetown, TX (4 branches) | 16 of 73 | 1.0% | $695.5M | $70.41B |
| San Antonio-New Braunfels, TX (2 branches) | 27 of 65 | 0.1% | $209.8M | $174.95B |
| Beaumont-Port Arthur, TX (2 branches) | 11 of 20 | 1.9% | $144.3M | $7.70B |
| Dallas-Fort Worth-Arlington, TX (2 branches) | 116 of 165 | <0.1% | $137.4M | $731.99B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Third Coast Bank (main office) | Humble, TX | 77338 | $3.19B |
| Galleria Branch | Houston, TX | 77027 | $663.5M |
| Keystone Bank Branch | Austin, TX | 78738 | $558.3M |
| Dallas Branch | Dallas, TX | 75225 | $401.0M |
| La Vernia Branch | La Vernia, TX | 78121 | $143.1M |
| Kingwood Branch | Kingwood, TX | 77339 | $93.9M |
| Fort Worth Branch | Fort Worth, TX | 76102 | $89.8M |
| Ballinger Branch | Ballinger, TX | 76821 | $89.0M |
| Austin Downtown Branch | Austin, TX | 78703 | $86.0M |
| Pearland Branch | Pearland, TX | 77581 | $84.7M |
| Beaumont Branch | Beaumont, TX | 77713 | $81.3M |
| San Antonio Branch | San Antonio, TX | 78205 | $66.7M |
| Mid County Branch | Port Arthur, TX | 77642 | $62.9M |
| Woodlands Branch | The Woodlands, TX | 77381 | $52.7M |
| Plano Branch | Plano, TX | 75024 | $47.5M |
| Austin Branch | Austin, TX | 78703 | $43.3M |
| Nixon State Bank Branch | Nixon, TX | 78140 | $36.6M |
| Lake Jackson Branch | Lake Jackson, TX | 77566 | $31.4M |
| Detroit Branch | Detroit, TX | 75436 | $15.8M |
| Conroe Branch | Conroe, TX | 77304 | $11.6M |
| Georgetown Branch | Georgetown, TX | 78626 | $8.0M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 58716) · FFIEC NIC profile (RSSD 3630323)