Originally, Indiana was part of the Northwest Territory, which was made up of land gained by the British after the French and Indian War and organized into a territory after the American Revolution.

Knox territory was created in 1790 and included all of present-day Indiana and areas of Illinois.

Ancestry's Red Book notes that jurisdiction in Knox territory changed due to Indian uprisings in the area from 1790 to 1810.

[4] It was named for the Miami, a Native American people, many of whom still live in this area.

In 1838 a small portion of unorganized territory was added to the northeastern border, but in 1844 that area was lost to Fulton County.

They are responsible for setting salaries, the annual budget, and special spending.

The commissioners are charged with executing the acts legislated by the council, collecting revenue, and managing the day-to-day functions of the county government.

The judge on the court is elected to a term of four years and must be a member of the Indiana Bar Association.

[9] County Officials: The county has several other elected offices, including sheriff, coroner, auditor, treasurer, recorder, surveyor, and circuit court clerk Each of these elected officers serves a term of four years and oversees a different part of county government.

[11] As of the 2010 United States Census, there were 36,903 people, 13,456 households, and 9,330 families residing in the county.