Holidays in Illinois 2027
State and national holidays observed in Illinois.
These are state holidays for Illinois in 2027, in addition to all federal US holidays observed nationwide.
Illinois state holidays
- New Year's Day2027-01-01
- Martin Luther King Jr. Day2027-01-18
- Lincoln's Birthday2027-02-12
- Valentine's Day2027-02-14
- Washington's Birthday2027-02-15
- Casimir Pulaski Day2027-03-01
- St. Patrick's Day2027-03-17
- Easter Sunday2027-03-28
- Tax Day2027-04-15
- Administrative Professionals Day2027-04-21
- Mother's Day2027-05-09
- Malcolm X Day2027-05-19
- Memorial Day2027-05-31
- Juneteenth (substitute day)2027-06-18
- Juneteenth2027-06-19
- Father's Day2027-06-20
- Independence Day2027-07-04
- Independence Day (substitute day)2027-07-05
- Labor Day2027-09-06
- Columbus Day2027-10-11
- Halloween2027-10-31
- Veterans Day2027-11-11
- Thanksgiving Day2027-11-25
- Day after Thanksgiving Day2027-11-26
- Christmas Day (substitute day)2027-12-24
- Christmas Eve2027-12-24
- Christmas Day2027-12-25
- New Year's Day (substitute day)2027-12-31
- New Year's Eve2027-12-31
Plus 26 national US holidays
Illinois also observes all federal US holidays — including Easter Sunday, Tax Day, Administrative Professionals Day, and others.
View all US 2027 holidays →