In Witzenhausen, you can either choose private or Studentenwerk-accommodation. Possibilities are:

1. Dormitories. There is a long waiting list. If you want to live in a dormitory, apply as early as possible.
Further information about dormitories in Witzenhausen and application can be found here:
Dormitories Witzenhausen

2. Private housing market. There are various websites offering announcements.
studenten-wohnung.de
studenten-wg.de
wg-gesucht.de
zwischenmiete.de

3. For special questions please contact:
International Students University of Kassel
International Students Studentenwerk Kassel