| Pennsylvania | Judicial | Partisan legislative | Partisan legislative |
| Rhode Island | Partisan legislative | Partisan legislative | Advisory commission |
| South Carolina | Judicial | Judicial | Partisan legislative |
| Tennessee | Partisan legislative | Bipartisan legislative | Partisan legislative |
| Texas | Partisan legislative 1992-94, partisan legislative/judicial 1996-2000 | Judicial 2002, partisan legislative 2004, partisan legislative/judicial 2006-10 | Judicial 2012, partisan legislative 2014-16 |
| Utah | Partisan legislative | Partisan legislative | Partisan legislative |
| Virginia | Partisan legislative 1992-96, Bipartisan legislative 1998-2000 | Partisan legislative | Partisan legislative 2012-14, Partisan legislative/judicial 2016 |
| Washington | Independent commission | Independent commission | Independent commission |
| West Virginia | Partisan legislative | Partisan legislative | Partisan legislative |
| Wisconsin | Bipartisan legislative | Bipartisan legislative | Partisan legislative |