Cass County - Cass was formed from Carroll in 1829, Logansport is the county Seat.

Howard County Howard was formed from Carroll, Cass, Miami, Grant, and Hamilton in 1844 and was orginally Richardville county. Kokomo is the county seat.

Clinton Co Clinton was formed from Tippecanoe in 1839, Frankfort is the county seat.

White Co White county was formed from Carroll in 1834, Monticello is the county seat.

Tippecanoe Co Tippecane was formed from Unorganized territory and Park in 1826. Lafayette is the county seat.