Indiana law requires decennial redistricting
Indiana state law is explicit about the necessity to redistrict every 10 years and about the requirements that districts be compact (to avoid gerrymandering) and nearly equal in population. Statutes mandating the redistricting of county councils and elected school boards that use single-member electoral districts read in part (with emphasis added):
IC 36-2-3-4 [county councils]
Election of fiscal body; division of county into districts; single-member district criteria
(d) Single-member districts . . . must:
(1) be compact, subject only to natural boundary lines . . . ;
(2) not cross precinct boundary lines;
(3) contain, as nearly as possible, equal population; and
(4) include whole townships, except when a division is clearly necessary to accomplish redistricting under this section. . . .
(e) A division shall be made . . . during the first year after a year in which a federal decennial census is conducted . . . .
IC 20-23-8-8 [school boards]
(4) If the [school board] plan provides for electoral districts, where a member of the governing body is elected solely by the voters of a single district, the districts must be as near as practicable equal in population. The districts shall be reapportioned and their boundaries changed, if necessary, by resolution of the governing body before the election next following the effective date of the subsequent decennial census to preserve the equality by resolution of the governing body.
Yet these legislative requirements are regularly flouted in Indiana.