Briosco borders the following municipalities: Inverigo, Veduggio con Colzano, Renate, Besana in Brianza, Giussano, Carate Brianza, Verano Brianza.
Briosco's boundaries are defined by its neighboring municipalities: Inverigo, Veduggio con Colzano, Renate, Besana in Brianza, Giussano, Carate Brianza, and Verano Brianza.