Rolla Flag

Rolla

County:
Phelps County
County Seat:
Yes
Area (mi²):
12.129
State:
Missouri

Rolla is a city located in Phelps County, Missouri. Rolla has a 2026 population of 20,660. It is also the county seat of Phelps County. Rolla is currently growing at a rate of 0.75% annually and its population has increased by 3.71% since the most recent census, which recorded a population of 19,921 in 2020.

20.7K
Total Population
1,703
Density (mi²)
154 0.75%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)