Oneida is an unincorporated community in Oneida Township, Delaware County, Iowa, United States.

The community is on county highway D13, 3 miles (4.8 km) south of Greeley.

[2] A post office opened in Oneida in 1887 and operated until 1963.

[5] Oneida was incorporated from May 29, 1912 until 1994.

This article about the geography of Delaware County, Iowa is a stub.