The routing number for Comerica Bank California is 121137522.

Comerica Bank California is located at this address: P.O. Box 75000, Detroit, Michigan.

In case of mail delivery, this is the full address you should use:

Comerica Bank California
P.O. Box 75000
Detroit
Michigan
48275-7570

To contact Comerica Bank California by phone, call: (800) 581-9857

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This page has the contact information and routing numbers for Comerica Bank California.

You'll find information like phone number, full address, zip code, routing numbers and more.

We are working hard to keep the site updated, however, we cannot guarantee that the information on the site is fully updated at any point in time as changes may occur at any time we encourage you to validate the information with your bank.

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Routing Numbers General Information

Routing number is a 9 digit number given to a bank by the ABA (American Bankers Association) in order to recognize the bank for which payment is being sent to.

Routing numbers are often called ABA numbers, Check routing numbers, or Routing transit numbers (RTN).

Routing numbers change from bank to bank and from one bank location to another, there are also different routing numbers for different transactions.

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