South Prairie Flag

South Prairie

County:
Pierce County
County Seat:
No
Area (mi²):
0.383
State:
Washington

South Prairie is a town located in Pierce County, Washington. South Prairie has a 2025 population of 354. South Prairie is currently declining at a rate of -1.12% annually and its population has decreased by -5.85% since the most recent census, which recorded a population of 376 in 2020.

The average household income in South Prairie is $122,830 with a poverty rate of 2.7%.The median age in South Prairie is 34.2 years: 33.7 years for males, and 34.5 years for females.

354
Total Population
924
Density (mi²)
-4 -1.12%
Growth

South Prairie Population

Demographics

Economics and Income Statistics

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)