Bank Southwestern National Bank
Southwestern National Bank is a federally insured bank based in Houston, Texas.
- Type
- Bank
- Charter
- National commercial bank (OCC-chartered)
- Primary regulator
- OCC
- Established
- November 3, 1997
- Headquarters
- Houston, TX
- FDIC certificate #
- 34319
- Fed RSSD ID
- 2625724
- Holding company
- Swnb Bcorp Inc
- Website
- www.swnbk.com
Source: U.S. FDIC BankFind & NCUA 5300 Call Report (public data). Data sources · Data as of Q1 2026
Branches by state
Southwestern National Bank operates 9 branch locations across 2 states. Select a state to drill down to its towns and individual branches.
Ownership
Southwestern National Bank is owned by Swnb Bcorp Inc. See the full ownership & merger history.
Southwestern National Bank financial summary
Other banks in Texas
Federally insured banks headquartered in Texas, by total assets.
- Charles Schwab Bank, SSB $242.91B
- Frost Bank $52.77B
- Prosperity Bank $43.61B
- Texas Capital Bank $33.21B
- Charles Schwab Premier Bank, SSB $27.44B
- First Financial Bank $15.32B
- NexBank $13.44B
- PlainsCapital Bank $12.44B
Similar-size banks
Institutions close to Southwestern National Bank’s $1.39B in assets.