Ontario Flag

Ontario

County:
Malheur County
County Seat:
No
Area (mi²):
5.948
State:
Oregon

Ontario is a city located in Malheur County, Oregon. Ontario has a 2025 population of 11,949. Ontario is currently growing at a rate of 0.35% annually and its population has increased by 1.77% since the most recent census, which recorded a population of 11,741 in 2020.

The average household income in Ontario is $62,079 with a poverty rate of 19.25%.The median age in Ontario is 35.4 years: 34.8 years for males, and 35.7 years for females.

11.9K
Total Population
2,009
Density (mi²)
42 0.35%
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)