Gresham was originally called Poston, and under the latter name was platted in 1887 when the Fremont, Elkhorn and Missouri Valley Railroad was extended to that point. Landmarks include Clem's Opera House.
- CountyYork County
- Population219 (2020 U.S. Census)
- Named forWalter Quintin Gresham
- Historic places1 on the National Register





















Clem's Opera House
A view of Gresham