South Dakota observes the following as official holidays:
| Every Sunday |
|January 1 ||New Year's Day |
|Third Monday in January ||Martin Luther King Jr. Day |
|Third Monday in February ||Presidents' Day |
|Last Monday in May ||Memorial Day |
|July 4 ||Independence Day |
|First Monday in September ||Labor Day |
|Second Monday in October ||Native Americans' Day |
|November 11 ||Veterans Day |
|Fourth Thursday in November ||Thanksgiving Day |
|December 25 ||Christmas Day |
The governor or president of the United States may appoint additional holidays. If New Year's Day, Independence Day, Veterans Day, or Christmas Day falls on Sunday, it is observed on the next Monday; if one of these days falls on a Saturday, it is observed on the preceding Friday (SD Cod. Laws Sec. 1-5-1).
State employers. South Dakota state offices are closed, and state employees are entitled to the days mentioned above as paid days off (SD Cod. Laws Sec. 3-6-30).
Private employers . Private employers are not obligated by state law to provide any holidays as paid (or unpaid) days off. However, most employers do observe at least seven paid holidays.