Illinois is home to approximately 12.6 million people, centred on Chicago — the third largest US city and a major hub for finance, commerce, and transportation. Illinois observes all 11 federal public holidays and additionally recognises Casimir Pulaski Day (first Monday in March), reflecting the state's significant Polish-American community.
In 2031, Illinois observes 11 public holidays in total — 11 nationwide holidays that apply across all of United States.
Public Holidays 2031
11 holidays
Illinois — All Public Holidays 2031
| Date | Day | Holiday | Type |
|---|---|---|---|
| 1 Jan 2031 | Wed | New Year's Day | Nationwide |
| 20 Jan 2031 | Mon | Birthday of Martin Luther King, Jr. | Nationwide |
| 17 Feb 2031 | Mon | Washington's Birthday | Nationwide |
| 26 May 2031 | Mon | Memorial Day | Nationwide |
| 19 Jun 2031 | Thu | Juneteenth National Independence Day | Nationwide |
| 4 Jul 2031 | Fri | Independence Day | Nationwide |
| 1 Sept 2031 | Mon | Labor Day | Nationwide |
| 13 Oct 2031 | Mon | Columbus Day | Nationwide |
| 11 Nov 2031 | Tue | Veterans Day | Nationwide |
| 27 Nov 2031 | Thu | Thanksgiving Day | Nationwide |
| 25 Dec 2031 | Thu | Christmas Day | Nationwide |
School Holidays 2031
Illinois — School Holidays 2031
Winter Break
17.02.2031 - 21.02.2031
Spring Break
No break
Summer Holidays
06.06.2031 - 25.08.2031
Christmas Break
22.12.2031 - 04.01.2032