Greenville is an unincorporated community in eastern Beaver County, Utah, United States.

[1] Although Greenville is unincorporated, it has a post office, with the ZIP code of 84731.

[4] The location of Greenville was originally a camp on the north side of a ford on the Beaver River, along the Mormon Road until 1855.

That year, the road was rerouted up river to the crossing at what later became Beaver.

[5] The community was named for the thick green grass which covered the original town site.