Zyba, KansasZyba is an unincorporated community in Sumner County, Kansas, United States. It is located approximately four miles southwest of the Kansas Star Casino at N West St and E 120th Ave N, next to the railroad and Ninnescah River.HistoryA post office was opened in Zyba in 1887, and remained in operation until it was discontinued in 1906.EducationThe community is served by Belle Plaine USD 357 public school district.