Marion is a city located in Montana. Marion has a 2020 population of 930. Marion is currently declining at a rate of 0.00% annually and its population has increased by 4.97% since the most recent census, which recorded a population of 886 in 2010. Marion reached it's highest population of 930 in 2018.
The average household income in Marion is $63,015 with a poverty rate of 23.87%. The median rental costs in recent years comes to $923 per month, and the median house value is $271,300. The median age in Marion is 38.8 years, 37.5 years for males, and 43.8 years for females. For every 100 females there are 123.6 males.