Decatur is a city located in Georgia. With a 2020 population of 27,598, it is the 40th largest city in Georgia and the 1381st largest city in the United States. Decatur is currently growing at a rate of 3.50% annually and its population has increased by 42.74% since the most recent census, which recorded a population of 19,335 in 2010. Spanning over 4 miles, Decatur has a population density of 6,222 people per square mile.
The average household income in Decatur is $132,322 with a poverty rate of 12.34%. The median rental costs in recent years comes to $927 per month, and the median house value is $466,800. The median age in Decatur is 35.8 years, 36.5 years for males, and 35.1 years for females. For every 100 females there are 75.8 males.