89 Ill. Adm. Code 121.21
Residence
Section 121
Section 121.21 Residence
a) Only those persons who are legally admitted to the United
States can be found to be residents of the State of Illinois.
b) Applicants must live in the county/district in which they are
applying. Intent to remain permanently and duration of residence are not
eligibility requirements.
c) During the certification period, eligible households that move
between Illinois counties do not have to reapply for benefits in their new
county of residence.