Wheatland is a former borough in Mercer County, Pennsylvania, United States, along the Shenango River. The population was 583 at the 2020 census. On January 1, 2024, Wheatland merged with the neighboring city of Hermitage after residents of both communities voted to approve the merger in November 2022.

Mercer County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 110,652. Its county seat is Mercer, and its largest city is Hermitage. The county is part of the Northwest Pennsylvania region of the state.