Fayetteville is an unincorporated community in Johnson County, in the U.S. state of Missouri.[1] Fayetteville was founded in the mid-1840s, and named after Lafayette Collins, a local storekeeper.[2] A post office called Fayetteville was established in 1856, and remained in operation until 1919.This Johnson County, Missouri state location article is a stub.You can help Wikipedia by expanding it.