Phelps County Flag

Phelps County

State:
Missouri
County Seat:
Rolla

Phelps County's estimated 2025 population is 45,827 with a growth rate of 0.34% in the past year according to the most recent United States census data. Phelps County is the 23rd largest county in Missouri. The 2010 population was 45,298 and has seen a growth of 1.17% since that time.

45,827
Total Population
68
Population Density (mi²)
23
Population Rank (State)
155 0.34%
Annual Population Growth

Phelps County Population

Demographics

Economics and Income Statistics

Sources

  1. City and Town Population Totals: 2020-2024
  2. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  3. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  4. American Community Survey (2009 - 2013)
  5. Census QuickFacts
  6. Historical Populations of States and Counties (1790 - 1990)