Rolla is a city located in Missouri. With a 2020 population of 20,800, it is the 35th largest city in Missouri and the 1791st largest city in the United States. Rolla is currently growing at a rate of 1.00% annually and its population has increased by 6.34% since the most recent census, which recorded a population of 19,559 in 2010. Spanning over 12 miles, Rolla has a population density of 1,715 people per square mile.
The average household income in Rolla is $51,408 with a poverty rate of 31.11%. The median rental costs in recent years comes to $715 per month, and the median house value is $125,100. The median age in Rolla is 26.1 years, 23 years for males, and 31.7 years for females. For every 100 females there are 127.4 males.