[2] Prior to the 2023 governance reform, for governance purposes it was divided between the city of Fredericton,[3] the Indian reserve of Devon 30, and the local service district of the parish of Saint Marys,[4] of which the city and the LSD were members of Capital Region Service Commission (RSC11).

[5] The LSD includes the special service areas of Evergreen Park and Pepper Creek.

In 1824 part of Saint Marys was included in the newly erected Douglas Parish.

[8] In 1837 part of Saint Marys was included in the newly erected Stanley Parish.

[14][15][21] bold indicates an incorporated municipality or Indian reserve; italics indicate a name no longer in official use Bodies of water[e] at least partly within the parish.