Prehistoric cultural affiliation(s) include Woodland and Custer-Washita dating back to 500.
Some of the country's most noteable architects helped create the Ellis County places including George E. Davison, S.A. McMannis, George Carr, P.H. Weathers, J.H.C. Stuart, L.G. Meyers and Bernon Brown. Prominent architectural styles found in Ellis Country are Classical Revival and Romanesque.