Middleton is a city located in Idaho. With a 2020 population of 8,645, it is the 27th largest city in Idaho and the 3400th largest city in the United States. Middleton is currently growing at a rate of 3.82% annually and its population has increased by 56.50% since the most recent census, which recorded a population of 5,524 in 2010. Spanning over 6 miles, Middleton has a population density of 1,562 people per square mile.
The average household income in Middleton is $60,165 with a poverty rate of 14.85%. The median rental costs in recent years comes to $664 per month, and the median house value is $163,900. The median age in Middleton is 29.3 years, 29.7 years for males, and 28.8 years for females. For every 100 females there are 97.7 males.