Knight has an associates degree from the Mississippi Gulf Coast Community College, a bachelor's degree from UAB, and a law degree from the Birmingham School of Law. He ran unsuccessfully for Alabama State Senate in 1998 and for a circuit judgeship in 2000.
In 2010, Dixon was one of five candidates to qualify in the Republican primary to fill the Jefferson County Commission District 4 seat left open when four-term incumbent and Commission President Bettye Fine Collins decided not to run for re-election. Knight defeated Ronnie Dixon in a runoff, then beat Democratic Roy L. Wood, Jr in the 2010 general election.
Bettye Fine Collins
|Jefferson County Commission District 4 Representative|
- Gray, Jeremy (May 20, 2010) "Campaign 2010: Jefferson County Commission District 4 candidates say they would negotiate on sewer debt." Birmingham News
- Wright, Barnett (July 8, 2010) "Campaign 2010: In Jefferson Commission District 4 race Ronnie Dixon, Joe Knight aim to replace Bettye Fine Collins after her 16-year stay." Birmingham News
- Wright, Barnett (October 27, 2010) "Joe Knight, Roy Wood Jr. shaking hands, hunting votes for Jefferson County Commission District 4." Birmingham News