We are Excited to Announce the Opening of our New Marlette Branch!

Thumb Bank & Trust is locally owned, locally involved and locally invested in the communities we serve.

The Marlette office is the first Thumb Bank & Trust branch in Sanilac County and complements our other branch locations in Huron, Tuscola and Bay Counties. We are excited to be part of a community in the heart of the thumb.

Please stop in and visit our branch location at 2592 South Van Dyke Marlette! Lobby hours are Monday - Friday, 9:00am to 4:00pm. You can also call us at 989-214-4277 during regular business hours.


Holly Boneteel

Meet Your Branch Manager Holly Bonesteel  

Holly brings 17 years of retail banking experience to Thumb Bank & Trust. She lives, works and raises her family in Marlette and is proud to be serving customers in her community.


Thumb Bank & Trust has a team of financial professionals ready to assist customers with their banking needs. We offer personal and business deposit and loan products, as well as financial and trust services.

Community Strong Since 1895