Adel is a city located in Dallas County Iowa. It is also the county seat of Dallas County. With a 2020 population of 6,513, it is the 61st largest city in Iowa and the 4119th largest city in the United States . Adel is currently growing at a rate of 8.84% annually and its population has increased by 76.89% since the most recent census, which recorded a population of 3,682 in 2010. Adel reached it's highest population of in . Spanning over 5 miles, Adel has a population density of 1,342 people per square mile.
The average household income in Adel is $84,836 with a poverty rate of 10.55%. The median rental costs in recent years comes to $708 per month, and the median house value is $180,300. The median age in Adel is 38.2 years, 37.1 years for males, and 38.9 years for females.