Rupert is a city located in Minidoka County Idaho. It is also the county seat of Minidoka County. With a 2020 population of 6,201, it is the 30th largest city in Idaho and the 4242nd largest city in the United States . Rupert is currently growing at a rate of 2.55% annually and its population has increased by 11.65% since the most recent census, which recorded a population of 5,554 in 2010. Rupert reached it's highest population of 6,201 in 2021. Spanning over 2 miles, Rupert has a population density of 3,012 people per square mile.
The average household income in Rupert is $46,657 with a poverty rate of 26.40%. The median rental costs in recent years comes to $646 per month, and the median house value is $113,000. The median age in Rupert is 30.5 years, 25.8 years for males, and 35.6 years for females.