Agriculture is the number one industry in Mercer County and in the Commonwealth of Pennsylvania.
Statewide, Mercer County ranks tenth in the production of sheep and lambs, tenth in the production of alfalfa hay, and third in the production of oats. Mercer County Agricultural Development Council and Mercer County Cooperative Extension of The Pennsylvania State University are pleased to make available to our citizens the 1999 Mercer County Agricultural Resource Book . The project leaders made every reasonable effort to contact all agricultural agencies, organizations, and agribusiness owners in Mercer County. In some cases, these entities responded and sent back forms that were filled out with complete information. In some cases, there was no response.