Public holidays
1811, USA, Illinois
| # | Date | Public holiday |
|---|---|---|
| 1 | Tuesday, January 1, 1811 | New Year's Day |
| 2 | Monday, January 21, 1811 | Martin Luther King Day |
| 3 | Tuesday, February 12, 1811 | Lincoln's Birthday |
| 4 | Monday, February 18, 1811 | Washington's Birthday |
| 5 | Monday, May 27, 1811 | Memorial Day |
| 6 | Wednesday, June 19, 1811 | Juneteenth National Independence Day |
| 7 | Thursday, July 4, 1811 | Independence Day |
| 8 | Monday, September 2, 1811 | Labor Day |
| 9 | Monday, October 14, 1811 | Columbus Day |
| 10 | Tuesday, November 5, 1811 | Election Day |
| 11 | Monday, November 11, 1811 | Veterans Day |
| 12 | Thursday, November 28, 1811 | Thanksgiving |
| 13 | Wednesday, December 25, 1811 | Christmas |