Ontario Flag

Ontario

County:
LaGrange County
County Seat:
No
Area (mi²):
0.775
State:
Indiana

Ontario is a CDP located in LaGrange County, Indiana. Ontario has a 2026 population of 272. Ontario is currently growing at a rate of 6.67% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The median age in Ontario is 44.3 years: 47.6 years for males, and 44.1 years for females. For every 100 females there are 29.7 males.

272
Total Population
351
Density (mi²)
17 6.67%
Growth

Ontario Population

Ontario Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026272176.67%
2025255177.14%

Median Age

Overall: 44.3 years
Female: 44.1 years
Male: 47.6 years

Ontario Adults

There are 211 adults, (38 of whom are seniors) in Ontario.

Sex Ratio

Female: 232 (77.1%)
Male: 69 (22.9%)

Demographics

The racial composition of Ontario includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White301100%
Race
Population ↓
Percentage (of total)
White301100%

Ontario Marital Status

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)