Ontario Flag

Ontario

County:
Hand County
County Seat:
No
Area (mi²):
35.68
State:
South Dakota

Ontario is located in Hand County, South Dakota. Ontario has a 2025 population of 22 . Ontario is currently declining at a rate of -4.35% annually and its population has decreased by -8.33% since the most recent census, which recorded a population of 24 in 2020.

The average household income in Ontario is $40,224 with a poverty rate of 51.52%. The median age in Ontario is 39.8 years: 37.3 years for males, and 57 years for females. For every 100 females there are 230.0 males.

22
Total Population
1
Density (mi²)
-1 -4.35%
Growth

Ontario 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)