Iona Flag

Iona

County:
Lyman County
County Seat:
No
Area (mi²):
127.886
State:
South Dakota

Iona is located in Lyman County, South Dakota. Iona has a 2025 population of 64. Iona is currently declining at a rate of 0% annually and its population has decreased by -1.54% since the most recent census, which recorded a population of 65 in 2020.

64
Total Population
1
Density (mi²)
0 0%
Growth

Iona Population

Demographics

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)