Sissa borders the following municipalities: Colorno, Gussola, Martignana di Po, Roccabianca, San Secondo Parmense, Torricella del Pizzo, Torrile, Trecasali.
The municipality of Sissa shares its borders with the following towns and municipalities: Colorno, Gussola, Martignana di Po, Roccabianca, San Secondo Parmense, Torricella del Pizzo, Torrile, and Trecasali.