Originally Improvement District No. 23, the Municipal District of Mackenzie No. 23 incorporated as a municipal district on January 1, 1995.[1] It subsequently changed its status to specialized municipality on June 23, 1999 "to address concerns about municipal government and management in a municipality that serves a number of unique communities within a very large territory."[1] The Municipal District of Mackenzie No. 23 changed its name to Mackenzie County on March 8, 2007.[1]
In the 2021 Census of Population conducted by Statistics Canada, Mackenzie County had a population of 12,804 living in 3,516 of its 3,756 total private dwellings, a change of 14.6% from its 2016 population of 11,171. With a land area of 79,629.26 km2 (30,745.03 sq mi), it had a population density of 0.2/km2 (0.4/sq mi) in 2021.[4]
In the 2016 Census of Population conducted by Statistics Canada, Mackenzie County had a population of 11,171 living in 3,088 of its 3,567 total private dwellings, a change of 2.2% from its 2011 population of 10,927. With a land area of 80,458.19 km2 (31,065.08 sq mi), it had a population density of 0.1/km2 (0.4/sq mi) in 2016.[13]
^"Table 10: Population and Dwelling Counts, for Census Divisions, Census Subdivisions (Municipalities) and Designated Places, 1991 and 1996 Censuses – 100% Data". 96 Census. Vol. A National Overview – Population and Dwelling Counts. Ottawa: Statistics Canada. 1997. pp. 136–146. ISBN0-660-59283-5.