St. Mary Parish in Mt. Morris, Michigan

North: Intersection of Webster Road and Dodge Road in Vienna Township; Dodge Road east to the eastern edge of section 35 of Thetford Township (Belsey Road extended).

East: The eastern boundary of section 35 of Genesee Township south becoming the eastern boundary of section 2 and 14 of Genesee Township south to CS Mott Lake; CS Mott Lake southwest to Coldwater Road as extended.

South: Coldwater Road as extended west to Linden Road.

West: Linden Road north to Mt. Morris Road; Mt. Morris Road west To Webster Road; Webster Road north to Dodge Road to the point of the beginning.

All Latin Rite Catholics living within the above described territory are considered members of St. Mary Parish, and as such, are subject to the spiritual jurisdiction of the Reverend Pastor of that Parish.