Illinois Territory Counties 1809-1818

The 15 Counties in the Illinois Territory (1809-1818), before Illinois Statehood on December 3, 1818.

Map of Illinois by John Melish, 1820
CLICK MAP TO VIEW IN FULL SIZE

Saint Clair, County ( April 1809 )
Randolph, County ( April 1809 )
Madison, County ( September 1812 )
Gallatin, County ( September 1812 )
Johnson, County ( September 1812 )
Edwards, County ( November 1814 )
White, County ( December 1815 )
Monroe, County ( January 1816 )
Jackson, County ( January 1816 )
Pope, County ( January 1816 )
Crawford, County ( December 1816 )
Bond, County ( January 1817 )
Franklin, County ( January 1818 )
Union, County ( January 1818 )
Washington, County ( January 1818 )

Compiled by Neil Gale, Ph.D.