Millbrook is a city located in Alabama. With a 2020 population of 15,693, it is the 39th largest city in Alabama and the 2244th largest city in the United States. Millbrook is currently growing at a rate of 0.74% annually and its population has increased by 7.19% since the most recent census, which recorded a population of 14,640 in 2010. Spanning over 14 miles, Millbrook has a population density of 1,119 people per square mile.
The average household income in Millbrook is $80,592 with a poverty rate of 11.00%. The median rental costs in recent years comes to $859 per month, and the median house value is $150,300. The median age in Millbrook is 34.5 years, 33.3 years for males, and 35.7 years for females. For every 100 females there are 79.0 males.