Home>Choose State>Cities in Michigan>Institutions in Brown City>Tri-County Bank Locations in Brown City Tri-County Bank Branch Locations in Brown City, MI 1. Tri-County Bank - Brown City Branch 4222 Main Street, Brown City, MI 48416 (810) 346-2745 View Branch 2. Tri-County Bank - Ben's Supermarket Branch 4436 Main Street, Brown City, MI 48416 View Branch