Although containing nearly 90% of the inhabitants of Saint Pierre and Miquelon, the commune of Saint-Pierre is considerably smaller than the commune of Miquelon-Langlade, which lies to its northwest on Miquelon Island.
Aínda que contén cerca do 90% dos habitantes de Saint-Pierre-et-Miquelon, a comuna de Saint-Pierre é considerablemente menor que a comuna de Miquelon-Langlade, que se atopa ao noroeste.