Plains is a city located in Montana. With a 2020 population of 1,149, it is the 52nd largest city in Montana and the 9767th largest city in the United States. Plains is currently growing at a rate of 1.86% annually and its population has increased by 9.64% since the most recent census, which recorded a population of 1,048 in 2010. Spanning over 1 miles, Plains has a population density of 1,870 people per square mile.
The average household income in Plains is $42,614 with a poverty rate of 22.57%. The median rental costs in recent years comes to $687 per month, and the median house value is $131,100. The median age in Plains is 46.7 years, 44.6 years for males, and 47.6 years for females. For every 100 females there are 96.3 males.