Munroe made her first national appearance in 2017 at the 2017 Canadian U18 Curling Championships as second for Gabrielle Lavoie.

[4] Team Lavoie surprised many at the 2019 Quebec Scotties Tournament of Hearts where they took the provincial title by defeating 2018 champion Émilia Gagné in the final.

[5] At the 2019 Scotties Tournament of Hearts, the Quebec team struggled, ultimately finishing the week in last place with a 0–7 record.

Anna Munroe spared for the Noémie Gauthier rink at the 2020 Canadian Junior Curling Championships.

[7] Munroe was previously an arts, literature and communications student at the Champlain College St. Lawrence.