Map of Concealed Carry Laws in the U.S.
Illinois is the only state that currently does not allow concealed carry (referred to as a "no issue jurisdiction").
Shall issue jurisdiction - a permit to carry is required; granting of such permits is subject only to meeting certain criteria (the granting authority has no discretion in the awarding of the permits)
May issue jurisdiction - a permit is requried, and the granting of such permits is partially at the discretion of local authorities
No issue - no private citizen may carry a concealed handgun
This map shows what type of concealed carry is legal from state-to-state and how this has changed over the past 25 years.