Butler is a city located in Montgomery County Illinois. With a 2020 population of 161, it is the 1175th largest city in Illinois and the 17261st largest city in the United States . Butler is currently declining at a rate of -1.23% annually and its population has decreased by -10.56% since the most recent census, which recorded a population of 180 in 2010. Butler reached it's highest population of in . Spanning over 1 miles, Butler has a population density of 270 people per square mile.
The average household income in Butler is $45,309 with a poverty rate of 14.50%. The median rental costs in recent years comes to $783 per month, and the median house value is $65,500. The median age in Butler is 35.9 years, 36.7 years for males, and 35.7 years for females.