Decatur is a city located in Michigan. With a 2020 population of 1,723, it is the 273rd largest city in Michigan and the 8182nd largest city in the United States. Decatur is currently declining at a rate of -0.46% annually and its population has decreased by -5.28% since the most recent census, which recorded a population of 1,819 in 2010. Decatur reached it's highest population of 1,807 in 2010. Spanning over 1 miles, Decatur has a population density of 1,275 people per square mile.
The average household income in Decatur is $48,315 with a poverty rate of 20.37%. The median rental costs in recent years comes to $686 per month, and the median house value is $80,600. The median age in Decatur is 36.1 years, 32.7 years for males, and 40.1 years for females. For every 100 females there are 92.2 males.