St. Mary Cathedral in Lansing, Michigan

North:   Intersection of the western boundary of St. Joseph Cemetery and the Grand River; the Grand River north and then southeast to Grand River Avenue; Grand River Avenue east to the Detroit-Lansing Railroad Tracks.

East:      The Detroit-Lansing Railroad Tracks south to the Red Cedar River; Red Cedar River west and north to the Grand River.

South:   The Grand River west to Waverly Road.

West:    Waverly Road north to Michigan Avenue; Michigan Avenue east to Brynford Avenue; Brynford Avenue north as extended to Westfield Road as extended south to Saginaw Street; Westfield Road as extended north becoming the western boundary of St. Joseph Cemetery; the western boundary of St. Joseph Cemetery to the Grand River to the point of the beginning.

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