The town was named after the Harmony Hill Camp Meetings, which took place for two weeks each year on the current site of the Harmony Elementary School. The focus of the meetings was a religious (Methodists and Baptists) revival with extensive social gatherings. The first meeting occurred in 1846 and meetings continue to be held the second weekend of October. While the area around Harmony is mostly rural, the town includes a library, the Tomlinson-Moore family park, Harmony Volunteer Fire Department, community center, elementary school, doctor's offices, a manufacturing plant (Associated Metal Works), and other businesses.