Public holidays
1980, USA, Illinois
| # | Date | Public holiday |
|---|---|---|
| 1 | Tuesday, January 1, 1980 | New Year's Day |
| 2 | Monday, January 21, 1980 | Martin Luther King Day |
| 3 | Tuesday, February 12, 1980 | Lincoln's Birthday |
| 4 | Monday, February 18, 1980 | Washington's Birthday |
| 5 | Monday, May 26, 1980 | Memorial Day |
| 6 | Thursday, June 19, 1980 | Juneteenth National Independence Day |
| 7 | Friday, July 4, 1980 | Independence Day |
| 8 | Monday, September 1, 1980 | Labor Day |
| 9 | Monday, October 13, 1980 | Columbus Day |
| 10 | Tuesday, November 4, 1980 | Election Day |
| 11 | Tuesday, November 11, 1980 | Veterans Day |
| 12 | Thursday, November 27, 1980 | Thanksgiving |
| 13 | Thursday, December 25, 1980 | Christmas |