In order for Thomas County employees and their families to observe the Holidays, all Thomas County offices are closed on the days shown below.
| January 1st, 2020 | New Years Day |
| February 17th, 2020 | Presidents Day |
| May 25th, 2020 | Memorial Day |
| July 3rd, 2020 | Independence Day |
| September 7th, 2020 | Labor Day |
| November 11th, 2020 | Veterans Day |
| November 26th, 2020 | Thanksgiving Day |
| November 27th, 2020 | Day after Thanksgiving |
| December 24th, 2020 | Christmas Eve |
| December 25th, 2020 | Christmas Day |
| December 31st, 2020 | Treasures office closed to public at noon |
| January 1st, 2021 | New Year's Day |
| January 1st, 2021 | New Years Day |
| February 15th, 2021 | Presidents Day |
| May 31st, 2021 | Memorial Day |
| July 5th, 2021 | Independence Day |
| September 6th, 2021 | Labor Day |
| November 11th, 2021 | Veterans Day |
| November 25th, 2021 | Thanksgiving Day |
| November 26th, 2021 | Day after Thanksgiving |
| December 24th, 2021 | Christmas Eve |
| December 25th, 2021 | Christmas Day |
| December 31st, 2021 | Treasures office closed to public at noon |
| January 1st, 2022 | New Year's Day |