Michigan State Route 34 runs east-west across East-Central Hillsdale County. It goes from Michigan State Route 99, west of Osseo, to the Lenawee/Hillsdale County Line at Hudson. MI St Rt 34 passes through the following towns in Hillsdale County. Osseo Pittsford Hudson
MI St Rt 34 is not multi-plexed in Hillsdale County. MI St Rt 34 intersects the following highways in Hillsdale County. Michigan State Route 99, near Osseo. U.S. Rt. 127, at Hudson.
A junction marker on SB U.S. Rt. 127. WB MI St Rt 34 at the Lenawee/Hillsdale County Line.
