Walnut City is an unincorporated community in Appanoose County, Iowa, United States.
[2] A post office was established in Walnut City in 1867, and remained in operation until it was discontinued in 1897.
[3] Walnut City's population was 33 in 1900,[4] 11 in 1915,[5] and was 32 in 1925.
[6] Walnut City's population was 30 in 1940.
This article about the geography of Appanoose County, Iowa is a stub.