Branch Network
Southwestern National Bank Locations & Branches Houston, Texas
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Southwestern National Bank operates 9 branches from its headquarters in Houston, TX, .
Southwestern National Bank branch network
Its 9 branches span 2 states and 9 cities. The most are in TEXAS (6) and CALIFORNIA (3). TEXAS holds 81.8% of its branch deposits. Its largest office by deposits is its main office in Houston, TX, with $532.1M (43.9% of its branch deposits). It had the same number of branches on June 30, 2025.
Southwestern National Bank at a glance
Its CET1 capital ratio was 14.54% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $1.39B
- CET1 ratio, Q2 2026
- 14.54%
- Deposit insurance
- FDIC
- Regulator
- OCC
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1997
Full financial profile · Is Southwestern National Bank safe? · Southwestern National 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: Houston, TX (1 branch) | 34 of 75 | 0.2% | $532.1M |
| State: TX (6 branches) | 110 of 441 | <0.1% | $992.2M |
Ranked by total assets among banks headquartered in the state: Largest banks in Texas.
Share by county and metro area
Southwestern National 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 (1 branch) | 36 of 87 | 0.2% | $532.1M | $302.92B |
| Dallas, TX (2 branches) | 62 of 107 | <0.1% | $182.2M | $330.95B |
| Collin, TX (1 branch) | 32 of 69 | 0.4% | $174.1M | $39.76B |
| Los Angeles, CA (1 branch) | 82 of 91 | <0.1% | $94.5M | $507.70B |
| Orange, CA (1 branch) | 59 of 73 | <0.1% | $86.3M | $156.41B |
| Fort Bend, TX (1 branch) | 26 of 45 | 0.3% | $69.8M | $20.75B |
| San Mateo, CA (1 branch) | 28 of 30 | 0.1% | $39.6M | $38.86B |
| Travis, TX (1 branch) | 48 of 56 | <0.1% | $34.0M | $51.26B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Houston-The Woodlands-Sugar Land, TX (2 branches) | 43 of 104 | 0.2% | $601.9M | $359.69B |
| Dallas-Fort Worth-Arlington, TX (3 branches) | 85 of 165 | <0.1% | $356.3M | $731.99B |
| Los Angeles-Long Beach-Anaheim, CA (2 branches) | 84 of 107 | <0.1% | $180.8M | $664.11B |
| San Francisco-Oakland-Berkeley, CA (1 branch) | 61 of 69 | <0.1% | $39.6M | $512.65B |
| Austin-Round Rock-Georgetown, TX (1 branch) | 63 of 73 | <0.1% | $34.0M | $70.41B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Southwestern National Bank (main office) | Houston, TX | 77036 | $532.1M |
| Plano Branch | Plano, TX | 75075 | $174.1M |
| Dallas Regional Office | Richardson, TX | 75080 | $157.3M |
| Wilshire Branch | Los Angeles, CA | 90010 | $94.5M |
| Anaheim Branch | Anaheim, CA | 92804 | $86.3M |
| Sugar Land Branch | Sugar Land, TX | 77478 | $69.8M |
| San Mateo Branch | San Mateo, CA | 94402 | $39.6M |
| Austin Branch | Austin, TX | 78753 | $34.0M |
| Royal Lane Branch | Dallas, TX | 75229 | $24.9M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 34319) · FFIEC NIC profile (RSSD 2625724)