Comerica Bank Online Banking

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Comerica Bank was founded in 1849, initially as the Detroit Savings Fund Institute (in Detroit, Michigan). With its current headquarters in Dallas (TX), Comerica is the largest commercial bank headquartered out of of Texas, having over $55 billion in deposits and 9,000 employees (as of Q3).




  • Branch/ATM Locator
  • Website – www.comerica.com
  • Routing Number
    • ​​121137522 (AZ)
    • ​​121137522 (CA)
    • ​067012099 (FL)
    • ​072000096 (MI)
    • ​111000753 (TX)
  • SWIFT Code – MNBDUS4D (Dallas – TX)
  • Customer Service Telephone Number – 1(800)-522-2265
  • Mobile AppsAndroidiPhone | iPad