Ismay is a city located in Custer County Montana. With a 2020 population of 17, it is the 128th largest city in Montana and the 19416th largest city in the United States . Ismay is currently declining at a rate of -5.56% annually and its population has decreased by -10.53% since the most recent census, which recorded a population of 19 in 2010. Ismay reached it's highest population of 21 in 2010. Spanning over 0 miles, Ismay has a population density of 41 people per square mile.
The average household income in Ismay is - with a poverty rate of NaN%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Ismay is 0 years, 0 years for males, and 0 years for females.