The following localities belong to the city of Wunstorf: Blumenau (with Liethe), Bokeloh, Großenheidorn, Idensen (with Idensermoor and Niengraben), Klein Heidorn, Kolenfeld, Luthe, Mesmerode, Steinhude, and Wunstorf.
To the west of the city, Steinhude and Großenheidorn are located on the shores of Lake Steinhuder Meer.