Ontario
City in Malheur County, Oregon

Ontario is a city in Malheur County, Oregon, with 11,645 residents (2020 Census). It sits at 2,149 ft (655 m) above sea level. The nearest town is Fruitland, 2.9 miles E.
- 11,645residents (2020 Census)
- 2,149 ftelevation · 655 m
- 6.0 sq miland area · 15.5 km²
- 1,946 / sq mipopulation density
- 83619ZIP code
About Ontario
Ontario is the largest city in Malheur County, Oregon, United States. It lies along the Snake River at the Idaho border. The population was 11,645 at the 2020 census. The city is the largest community in the region of far eastern Oregon, also known as the Western Treasure Valley.
Ontario is the principal city of the Ontario, OR-ID Micropolitan Statistical Area, which includes Malheur County in Oregon and Payette County in Idaho.
Ontario is approximately halfway between Portland and Salt Lake City. It is the closest city to the Idaho border along Interstate 84. The city's slogan is "Where Oregon Begins".
Text: Wikipedia · CC BY-SA 4.0
Ontario weather: 7-day forecast
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Source: National Weather Service (NOAA).
Live webcams in Ontario
Webcams: Windy.com
Living in Ontario
- Median household income
- $46,308
- Median home value
- $236,300
- Median rent
- $804/mo
- Median age
- 35.2
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Map of Ontario
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Ontario Street View
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Open in Google Maps ›Ontario, OR population
Ontario had 11,645 residents in the 2020 Census.
| 2020 Census | 11,645 |
|---|---|
| Density | 1,946 per sq mi (751 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Ontario at a glance
| State | Oregon (OR) |
|---|---|
| County | Malheur County |
| Type | City |
| Population | 11,645 (2020) |
| Land area | 5.98 sq mi (15.5 km²) |
| Water area | 0.00 sq mi (0.00 km²) |
| Elevation | 2,149 ft (655 m) |
| Coordinates | 44.0253° N, 116.9774° W |
| ZIP code | 83619 |
| Official website | ontariooregon.org |
| Census code (GEOID) | 4154900 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Ontario
- Fruitland, ID2.9 mi E
- Payette, ID4.5 mi NE
- New Plymouth, ID8.7 mi SE
- Nyssa10.2 mi S
- Vale13.5 mi W
- Annex14.5 mi N
- Weiser, ID15.9 mi N
- Parma, ID16.7 mi S
- Letha, ID18.8 mi SE
- Adrian20.2 mi S
- Notus, ID23.3 mi SE
- Wilder, ID24.3 mi S
Straight-line distance between town centers.
Frequently asked questions about Ontario
What county is Ontario in?
Ontario is in Malheur County, Oregon.
What is the population of Ontario, OR?
11,645 people lived in Ontario at the 2020 Census.
What is the ZIP code of Ontario, OR?
The ZIP code of Ontario is 83619.
What is the elevation of Ontario?
2,149 feet (655 m) above sea level.
What towns are near Ontario?
Fruitland (2.9 mi), Payette (4.5 mi), New Plymouth (8.7 mi), Nyssa (10.2 mi), Vale (13.5 mi).
Last updated: