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Please feel free to use the form below to contact us.  If you would like to reach one of our offices by phone, please call 800-547-8531 during our normal business hours.


Our branches are located throughout Michigan. Stop in and see us in Alma, Greenville, Hastings, Ithaca, Mason, Middleton, Mount Pleasant, Okemos and St. Louis.

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Commercial Bank Routing Number: 072403554

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This communication should only be used for general inquiries. Commercial Bank suggests that confidential information, such as account number or social security numbers, never be transmitted via this communication.

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