DeKalb County, Illinois, United States

Overview of DeKalb County

• Name:
  DeKalb County
• Place Type:
  County
• Located In:
  Illinois, United States
  
• History (GNIS):
  Established 4 March 1834
• County Seat:
  Sycamore (Sycamore Township)
• Coordinates:
  Latitude:41.916695941° 55' 00.1"N

  Longitude:-88.750364488° 45' 01.3"W
• Population:
  77,932
• Elevation:
  270 m
• Surrounding Counties:
  • McHenry NE
  • Kane E
  • Kendall SE
  • LaSalle S
  • Lee SW
  • Ogle W
  • Winnebago NW
  • Boone N
• Histopolis Place ID:
  236549102
• Updated May 6, 2020