Elmont was incorporated in 1886. It was a shipping point on the Chicago, Rock Island and Pacific Railroad. A post office was opened in Elmont in 1887, and remained in operation until it was discontinued in 1955.
Elmont currently has an Elementary School operated by USD 345 Seaman school district.
- "Elmont, Kansas", Geographic Names Information System, United States Geological Survey, United States Department of the Interior
- Duncan, Spencer L. (2005). Historic Shawnee County: The Story of Topeka & Shawnee County. HPN Books. p. 74.
- Blackmar, Frank Wilson (1912). Kansas: A Cyclopedia of State History, Embracing Events, Institutions, Industries, Counties, Cities, Towns, Prominent Persons, Etc. Standard Publishing Company. pp. 584.
- "Kansas Post Offices, 1828-1961". Kansas Historical Society. Archived from the original on October 9, 2013. Retrieved 27 June 2014.