Washington County, Illinois, United States

Overview of Washington County

• Name:
  Washington County
• Place Type:
  County
• Located In:
  Illinois, United States
  
• History (GNIS):
  Established 2 January 1818
• County Seat:
  Nashville (Nashville Township)
• Coordinates:
  Latitude:38.350050238° 21' 00.2"N

  Longitude:-89.433419689° 26' 00.3"W
• Population:
  14,965
• Elevation:
  157 m
• Surrounding Counties:
  • Clinton N
  • Marion NE
  • Jefferson E
  • Perry S
  • Randolph SW
  • Saint Clair NW
• Histopolis Place ID:
  464361592
• Updated May 6, 2020