Milledgeville is a city located in Carroll County Illinois. With a 2020 population of 946, it is the 674th largest city in Illinois and the 10537th largest city in the United States . Milledgeville is currently declining at a rate of -0.32% annually and its population has decreased by -8.33% since the most recent census, which recorded a population of 1,032 in 2010. Milledgeville reached it's highest population of in . Spanning over 1 miles, Milledgeville has a population density of 1,371 people per square mile.
The average household income in Milledgeville is $63,721 with a poverty rate of 12.88%. The median rental costs in recent years comes to $660 per month, and the median house value is $84,100. The median age in Milledgeville is 42.4 years, 42.3 years for males, and 42.7 years for females.