Crossroads of America: Early Indiana History

KNOX COUNTY

Named for Revolutionary War General Henry Knox who was the first Secretary of War.

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A Few Facts About Knox County
  • Knox County is divided into 10 Civil Townships as follows: Busseron, Decker, Harrison, Johnson, Palmyra, Steen, Vigo, Vincennes, Washington and Widner.
  • Knox County was organized by Secretary of the Northwest Territory Winthrop Sargent June 20, 1790, when Michigan and Illinois were withdrawn from the Northwest Territory making it the oldest Indiana county. 
  • Winthrop Sargent, the Secretary of the Northwest Territory, established Knox County. 
  • The original boundaries of Knox County embraced one-third of the present State of Indiana.
  • Vincennes is the County Seat. 
  • Vincennes was the capital of the Indiana Territory from 1800-1812 until it was removed to Corydon, Harrison County.
  • According to the Society of Indiana Pioneers, an individual was a pioneer of our county if they resided here on or before December 31, 1825.
  • Indiana automobile License Plates issued in Knox County start with the prefix 42 because it is the forty-second county in alphabetical listing.
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