There's more than one place called '''Mercer County''':

United States of America

  • Mercer County (Illinois)
  • Mercer County (Kentucky)
  • Mercer County (Missouri)
  • Mercer County (New Jersey)
  • Mercer County (North Dakota)
  • Mercer County (Ohio)
  • Mercer County (Pennsylvania)
  • Mercer County (West Virginia)