Population Demographics
As of 2026 the population of Montana City is 3,170. The population is expected to grow to 3,316 by 2031 - a growth rate of 0.90%.
The median age of Montana City residents is 49.
The diversity index of Montana City is 23.2, meaning that there is a 23% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.