| Most Warren County offices and buildings are closed on the following holidays: |
| Holiday |
Observance |
| New Years Day |
January 1 |
| Martin Luther King Day |
Third Monday in January |
| President's Day |
Third Monday in February |
| Memorial Day |
Last Monday in May |
| Juneteenth Day |
June 19 |
| Independence Day |
July 4 |
| Labor Day |
First Monday in September |
| Veteran's Day |
November 11 |
| Thanksgiving |
Fourth Thursday in November |
| Day after Thanksgiving |
Fourth Friday in November |
| Christmas Eve 1/2 day after 12 noon |
December 24 or the day preceding
the observance of Christmas Day |
| Christmas Day |
December 25 |
| If a holiday falls on a Saturday then it will be observed on Friday and if it falls on a Sunday then it will be observed on Monday. |