McCartyville (also McCarthyville[1]) is an unincorporated community in Shelby County, Ohio, United States.
Located at the junction of State Routes 29 and 119, it lies in southern Van Buren Township, 3 miles (4.8 km) south of central Kettlersville and approximately 8 miles (13 km) northwest of the city of Sidney,[2] the county seat of Shelby County.
Settlers in both areas, who were heavily Catholic, decided to split social functions between the two communities: their church was in St. Patrick, and their post office was in McCartyville.
Mary Drees managed the post office in McCartyville around the turn of the 20th century.
[5] One McCartyville building—the rectory at Sacred Heart Catholic Church—is listed on the National Register of Historic Places.