Monnaie is the oldest neighbourhood in Paris’s 6th arrondissement. It is the 21st administrative district in Paris and covers an area of 29.3 ha. This district, located on the Seine’s banks, is bounded to the west by Rue Mazarine, which separates it from the Saint-Germain-des-Prés neighbourhood.
To the south, it is bordered by the Odéon neighbourhood and to the east by the 5th arrondissement’s neighbourhoods. The northeastern part of this neighbourhood faces Île de la cité, which is connected by Pont-Neuf.