Tri-County Bancorp Inc. in Brown City in Michigan’s thumb region, the holding company for Tri-County Bank, has completed the merger with Mayville Financial Corp. in Mayville, the holding company for Mayville State Bank. Financial details of the merger were not disclosed.
The transaction brings together two of Michigan’s longest-serving community banks — Tri-County Bank, which opened in Brown City in 1889, and Mayville State Bank, founded in 1885. On a combined basis, the company has approximately $734 million in total assets, $559 million in loans and $631 million in deposits, based on financial information as of June 30, 2026, and operates 14 full-service offices across eastern Michigan and the thumb region.
“We’re excited to officially welcome the Mayville customers, employees and communities into the Tri-County family,” says Mike Ford, president and CEO of Tri-County.
Customers will continue to be served at their existing branch locations by the same staff. Tri-County anticipates completing the merger and integration of the banks during the fourth quarter of this year under the Tri-County Bank name.
Performance Trust Capital Partners served as financial advisor to Tri-County Bancorp. Warner Norcross + Judd served as legal advisor to Tri-County Bancorp. FHN Financial Securities Corp. served as financial advisor to Mayville Financial Corp. Varnum served as legal advisor to Mayville Financial Corp.
