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 2026, Illinois observes 11 public holidays in total — 11 nationwide holidays that apply across all of United States.
Public Holidays 2026
11 holidays
Illinois — All Public Holidays 2026
| Date | Day | Holiday | Type |
|---|---|---|---|
| 1 Jan 2026 | Thu | New Year's Day | Nationwide |
| 19 Jan 2026 | Mon | Birthday of Martin Luther King, Jr. | Nationwide |
| 16 Feb 2026 | Mon | Washington's Birthday | Nationwide |
| 25 May 2026 | Mon | Memorial Day | Nationwide |
| 19 Jun 2026 | Fri | Juneteenth National Independence Day | Nationwide |
| 3 Jul 2026 | Fri | Independence Day (observed) | Nationwide |
| 7 Sept 2026 | Mon | Labor Day | Nationwide |
| 12 Oct 2026 | Mon | Columbus Day | Nationwide |
| 11 Nov 2026 | Wed | Veterans Day | Nationwide |
| 26 Nov 2026 | Thu | Thanksgiving Day | Nationwide |
| 25 Dec 2026 | Fri | Christmas Day | Nationwide |
School Holidays 2026
Illinois — School Holidays 2026
Winter Break
No break
Spring Break
02.04.2026 - 06.04.2026
Summer Holidays
04.06.2026 - 25.08.2026
Christmas Break
23.12.2025 - 04.01.2026