Sec. 2.
| County Population | Number of Commissioners |
| Under 5,001 | Not more than 7 |
| 5,001 to 10,000 | Not more than 10 |
| 10,001 to 50,000 | Not more than 15 |
| Over 50,000 | Not more than 21 |
History: 1966, Act 261, Eff. Mar. 10, 1967 ;-- Am. 1969, Act 137, Eff. Mar. 20, 1970 ;-- Am. 2004, Act 369, Imd. Eff. Oct. 11, 2004 ;-- Am. 2011, Act 280, Eff. Mar. 28, 2012