Mount Prospect, IL Curfew Laws: Juvenile Curfew (2026)

Section 23.604 of the Mount Prospect Village Code applies "notwithstanding anything contained to the contrary in this Code." It covers a child under seventeen (17) years of age who is present at any public assembly or in any public building, park, sidewalk, street, or highway or other public place. Three windows apply. On Sunday, Monday, Tuesday, Wednesday and Thursday nights the curfew starts at 11:00 P.M. and ends at 6:00 A.M. the following day. On Friday the curfew starts at 11:59 P.M. and runs to 6:00 A.M. Saturday. On Saturday it starts at 11:59 P.M. and runs to 6:00 A.M. Sunday. Because the section names a park in its list of places, a park after curfew falls under the same rule as a sidewalk or street.

Subsection B lifts the curfew for a child who is accompanied by a parent, guardian or custodian, or by a person at least twenty one (21) years of age approved by the parent, guardian or custodian. It also exempts a child engaged in a business or occupation that State law authorizes a person under seventeen to perform. Other exemptions cover a child participating in, going to, or returning from an emergency involving imminent threat of serious bodily injury or substantial damage, an activity protected by the First Amendment such as a religious event or a political rally, and an activity conducted by a nonprofit or governmental entity that provides recreation, education, training, or other care under adult supervision. A child on interstate or international travel from a location outside Illinois to another location outside Illinois, with the permission of a parent or legal guardian, is exempt as well.

Subsection C puts a duty on the Mount Prospect Police Department. Before arresting or citing a child, the officer must make reasonable inquiry into whether any exception applies, and can issue a citation or make an arrest only with reasonable grounds to believe the child violated the section and that no exceptions apply. Subsection D reaches adults: a parent, legal guardian or other person cannot knowingly permit a person in his or her custody or control to violate the curfew.