Adaville is an unincorporated community in Plymouth County, in the U.S. state of Iowa.

The first post office in Adaville opened sometime prior to 1857, and was discontinued in May 1857.

[2] Adaville's second post office opened in 1889.

[4] The Adaville post office closed in 1904.

[3] Adaville's population was 18 in 1920.