Mercer County, New Jersey, United States

Overview of Mercer County

• Name:
  Mercer County
• Place Type:
  County
• Located In:
  New Jersey, United States
  
• County Seat:
  Trenton
• Coordinates:
  Latitude:40.383439140° 23' 00.4"N

  Longitude:-74.882943174° 52' 58.6"W
• Population:
  325,824
• Elevation:
  134 m
• Surrounding Counties:
  • Somerset NE
  • Middlesex E
  • Monmouth E
  • Ocean SE
  • Burlington S
  • Bucks (Pennsylvania) W
  • Hunterdon N
• Histopolis Place ID:
  568693624
• Updated Oct 14, 2012