|Municipal district||County of St. Paul No. 19|
|• Governing body||County of St. Paul No. 19 Council|
|• Land||0.6 km2 (0.2 sq mi)|
|• Density||347.4/km2 (900/sq mi)|
|Time zone||UTC−07:00 (MST)|
|• Summer (DST)||UTC−06:00 (MDT)|
|Area code(s)||780, 587, 825|
The hamlet was one of the many communities that spawned due to the construction of the railroad in Western Canada during the early 1900s. In 1928, the hamlet was officially founded. The name was inspired by one of the Scottish workers. The many swamps and low-lying areas in the area reminded him of his home town (Mallaig, Scotland).
As the 20th century progressed, the railway has been removed, and has been replaced by the Iron Horse Trail, which is a long, recreational trail intended for all-terrain vehicles. The hamlet today is quite small, containing minimal services, a landfill, and a school (kindergarten to grade 12) with an enrollment of 246 students from the hamlet and surrounding area.
In the 2021 Census of Population conducted by Statistics Canada, Mallaig had a population of 210 living in 80 of its 83 total private dwellings, a change of 1.4% from its 2016 population of 207. With a land area of 0.6 km2 (0.23 sq mi), it had a population density of 350.0/km2 (906.5/sq mi) in 2021.
As a designated place in the 2016 Census of Population conducted by Statistics Canada, Mallaig had a population of 207 living in 70 of its 76 total private dwellings, a change of 19.7% from its 2011 population of 173. With a land area of 0.6 km2 (0.23 sq mi), it had a population density of 345.0/km2 (893.5/sq mi) in 2016.
- "Population and dwelling counts: Canada and designated places". Statistics Canada. February 9, 2022. Retrieved February 10, 2022.
- "Specialized and Rural Municipalities and Their Communities" (PDF). Alberta Municipal Affairs. January 12, 2022. Retrieved January 21, 2022.
- "About Us". Ecole Mallaig Community School. Archived from the original on September 30, 2013. Retrieved April 9, 2012.
- "Population and dwelling counts, for Canada, provinces and territories, and designated places, 2016 and 2011 censuses – 100% data (Alberta)". Statistics Canada. February 8, 2017. Retrieved February 13, 2017.
- Mallaig – Therien History Book Committee. Precious Memories – Mémoires Précieuses: Mallaig – Therien 1906–1992. Mallaig: Mallaig History Book Committee, 1993.