*Illinois has a reallocation rule that is set to go into effect in time for redistricting after the 2030 census.
**Delaware does not draw lines for congressional districts because it has only one.
There are differences in how these rules apply depending on whether previous residences can be identified for incarcerated people, which state they lived in before they were locked up, the type of facility where they were held as of April 1, 2020, and the length of their sentences. Some states also have rules about reallocating prisoner counts for the redrawing of county, city, town and school board districts.