Mercer County, PA

100 N Diamond Street
County Courthouse
Mercer, PA 16137
Phone: (724)662-3800

NACo Member County

County Populations
  1980     1990     2000     2010  
 128,216  121,003  120,293  116,638

County Seat: Mercer
County Organized: 1800
Square Miles: 672.58
Size of Board: 3
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  • Places in Mercer County
  • Census Bureau Quick Facts
  • Census Bureau Quick Links
  • Elected County Officials
    Name Position
    Brian Beader Commissioner
    John Lechner Commissioner, Chair
    Matthew McConnell Commissioner
    J. Bradley McGonigle III Coroner
    Gary Hartman Sheriff
    Virginia Richardson County Treasurer
    Thomas Amundsen County Controller
    Rhonda McClelland County Recorder
    Dee Dee Zickar Recorder of Deeds
    Elizabeth Fair Prothonotary
    Kathleen Kloos Clerk Of Courts And Register Of Wills