Edgerton was founded in 1889 when the railroad was extended to that point. A post office was established at Edgerton in 1890, and remained in operation until it was discontinued in 1954.
Edgerton is the last name of the Fort Wayne man who owned a large parcel of land along the Ohio line, east of Fort Wayne. Three Anspach brothers, from Oak Harbor, Ohio, purchased several hundred acres, built homes, a sawmill, a tile factory, and a general store there, naming the town for Mr. Edgerton. The house built by George Anspach is still an active residence there, facing the railroad tracks. His daughter, Edith, was borne there and then occupied the house after her marriage to George Waldrop, of Owen County, KY. George Anspach and wife Mary had moved to Creighton Avenue in Fort Wayne around 1908. Edith and George Waldrop also moved to another residence on Creighton Avenue around 1918. About half of their ten children were born in Edgerton, half in Fort Wayne.