The territory of the municipality of Sainte-Agnès is divided into three distinct geographical sectors. The medieval village extends on the western side of the Sainte-Agnès mountain. The locality also comprises the valleys of Castagnins, Pescaïre, and Figourne, which are crossed by a departmental road that gives access to the village. Finally, the hamlet of Cabrolles is located on Sainte-Agnès' southeast border with Menton. It is crossed by the Borrigo torrent, the Erbossièra stream, and is home to several sources such as Bausson, Reinier, or Orméa.