Mount Ayr is a city located in Newton County Indiana. With a 2020 population of 121, it is the 543rd largest city in Indiana and the 17965th largest city in the United States . Mount Ayr is currently growing at a rate of 1.68% annually but its population has decreased by -0.82% since the most recent census, which recorded a population of 122 in 2010. Mount Ayr reached it's highest population of 121 in 2010. Spanning over 0 miles, Mount Ayr has a population density of 691 people per square mile.
The average household income in Mount Ayr is $49,272 with a poverty rate of 10.91%. The median rental costs in recent years comes to $438 per month, and the median house value is $75,800. The median age in Mount Ayr is 40.7 years, 40.4 years for males, and 47.4 years for females.