Cumiana borders the following municipalities: Giaveno, Trana, Piossasco, Pinasca, Volvera, Pinerolo, Frossasco, Cantalupa, Airasca, and Piscina.
Cumiana is surrounded by: Giaveno, Trana, Piossasco, Pinasca, Volvera, Pinerolo, Frossasco, Cantalupa, Airasca, and Piscina.