Irwin Flag

Irwin

County:
Tripp County
County Seat:
No
Area (mi²):
35.703
State:
South Dakota

Irwin is located in Tripp County, South Dakota. Irwin has a 2025 population of 20. Irwin is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 20 in 2020.

20
Total Population
1
Density (mi²)
0 0%
Growth

Irwin Population

Irwin Population

Data after 2023 is projected based on recent change

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)