Products affected: MapInfo Pro™
The Redistricting menu drop-down has an Options section where you can control the sort order:
Redistricter Options Dialog Box
Most Recently Used
Allows you to display districts in the order that you most recently used them.
Allows you to display districts alphabetically. The District's Browser is sorted and redisplayed when you clickOK.
Allows you to randomly display districts.
UPDATED: December 6, 2019