[4] Harmony is located at the intersection of County Highways D and DD[5] at an elevation of 699 feet (213 m).

[1] It is connected by road to Peshtigo to the southeast and Marinette to the east (via Highway 64).

[5] The intersection of County Highway D and Highway 64 approximately 1.6 miles (2.6 km) west-northwest of Harmony was formerly known as Gould's Corners[6][7] after a farm located there owned by Addison Norris Gould (1850–1925).

A post office was established in Harmony in 1885 and James H. Potter (1827–1905) was appointed postmaster.

This article about a location in Marinette County, Wisconsin is a stub.