
Ontario
- County Seat:
- No
- Area (mi²):
- 0.775
- State:
- Indiana
Ontario is a CDP located in . Ontario has a 2025 population of 535. Ontario is currently growing at a rate of 7.21% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The average household income in Ontario is $83,044 with a poverty rate of 0%. The median age in Ontario is 46 years: 29.7 years for males, and 46.6 years for females.