As an unincorporated community, Gregory has no legally defined boundaries or population statistics of its own but does have its own post office with the 48137 ZIP Code.

Richmond Field is a small general aviation airport located about 2.0 miles (3.2 km) southeast of the center of the community.

[5] Lakelands Trail State Park has a trailhead and passes through Gregory, which crosses M-36 in the center of the community at 188 Main Street.

[2][3] The Unadilla Township Offices and Police Department are located within the center of Gregory at 126 Webb Street.

[11] The area was originally settled and occupied by the Halstead Gregory farmstead in Unadilla Township in 1884.

The hardware store has undergone numerous alterations under several owners, but the front entrance and steel door of the original 1864 structure remains intact.

It is currently operating under local ownership as the Bramlett Hardware Company at the same location of 164 Main Street.

[15] The train depot was soon closed with the disestablishment of the railroad, and the railway lines were eventually removed altogether.

By early 1931, M-106, known locally as Main Street, was extended from Stockbridge and provided a direct route to Jackson.

[21] Established in 1837, the Unadilla Baseline Cemetery is a county-designated historic site located to the southeast of Gregory.