Ontario, OR Demographics

Population 19,710 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
Ontario, OR map of median age by neighborhood
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Population and households in Ontario

Household size in Ontario

Household size, people per household
PeriodOntarioOregonU.S.
2006–102.572.502.68
2010–142.512.552.73
2015–192.602.562.71
2020–242.652.502.65
Change+0.08+0.00−0.03
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Households in Ontario average 2.65 people, the same as the country as a whole. The typical household here is bigger than in Oregon as a whole, where it has 2.50 people. Since 2006–10, household size has crept up from 2.57, even as the national average fell.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in Ontario

Median age, years
PeriodOntarioOregonU.S.
2006–1036.239.037.7
2010–1437.040.038.6
2015–1938.340.939.6
2020–2436.941.640.1
Change+0.7+2.5+2.3
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The median resident of Ontario is 36.9 years old, a few years younger than the national median of 40.1. Since 2006–10, the median age has crept up from 36.2, a smaller shift than nationally. Of the 115 Oregon cities with 5,000+ people, only ten are younger.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in Ontario

Single-parent households, % of households
PeriodOntarioOregonU.S.
2006–1013.5%10.5%12.3%
2010–1412.5%10.8%12.3%
2015–1915.2%9.9%11.6%
2020–2415.7%10.4%11.6%
Change+2.1 pts−0.1 pts−0.6 pts
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Single parents head nearly one in six households in Ontario (15.7%), well above the national share of 11.6%. The single-parent share is up 2.1 points from 2006–10, even as the national share fell. Ontario has a higher share of single-parent households than the great majority of Oregon cities.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in Ontario

Renters in Ontario

Renters, % of occupied homes
PeriodOntarioOregonU.S.
2006–1036.9%36.2%33.3%
2010–1442.7%38.5%35.6%
2015–1943.3%37.6%36.0%
2020–2439.8%36.7%34.8%
Change+2.9 pts+0.5 pts+1.5 pts
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About four in ten households in Ontario rent their homes (39.8%), a bit above the national share of 34.8%. About half of owners (50.8%) have paid off their mortgages, well above the national share of 39.8%. Renting is most common in the southeast and least common in the west. The renter share is up 2.9 points from 2006–10, as it has nationally.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in Ontario

Vacant homes, % of all homes
PeriodOntarioOregonU.S.
2006–1013.7%8.9%11.4%
2010–1412.4%9.1%11.4%
2015–1916.2%8.3%11.1%
2020–2411.9%7.4%9.6%
Change−1.8 pts−1.5 pts−1.8 pts
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Vacancy runs a little high in Ontario: 11.9% of homes are empty, against 9.6% nationally. The count includes vacation homes and homes between owners or tenants, not just abandoned ones. Since 2006–10, vacancy has fallen 1.8 points, in line with the national trend.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in Ontario

Age of homes, median year built
PeriodOntarioOregonU.S.
2006–10196919761974
2010–14197019771975
2015–19197219781977
2020–24197619811980
Change+7+5+6
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The typical home in Ontario was built around 1976, about the same vintage as the country's housing overall (1980). Homes here are older than in Oregon as a whole, where the median home dates to 1981. The median year built has moved up from 1969 in 2006–10, a sign of steady new building.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in Ontario

Rent, per month
PeriodOntarioOregonU.S.
2006–10$642$870$965
2010–14$627$982$1,040
2015–19$711$1,183$1,213
2020–24$821$1,601$1,571
Change+$179+$731+$606
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A typical rental in Ontario costs $821 a month with utilities, well below the national median of $1,571. Rent has climbed $179 a month since 2006–10, up 28%, a slower climb than the nation's. Rent takes 26.4% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent. No other Oregon city with 5,000+ people has lower rents.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in Ontario

Bachelor's degrees in Ontario

Bachelor's degrees, % of adults 25+
PeriodOntarioOregonU.S.
2006–1016.1%29.0%28.4%
2010–1413.8%30.2%29.6%
2015–1914.8%33.5%32.1%
2020–2414.1%36.4%35.6%
Change−2.0 pts+7.3 pts+7.2 pts
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College degrees are relatively uncommon in Ontario: 14.1% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. The share with a degree is down 2.0 points from 2006–10, even as the national share rose. Of the 115 Oregon cities with 5,000+ people, only eight have a lower share of college graduates.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in Ontario

High school graduates, % of adults 25+
PeriodOntarioOregonU.S.
2006–1079.3%88.5%84.9%
2010–1478.3%89.4%86.1%
2015–1981.1%90.5%87.7%
2020–2480.8%91.5%89.3%
Change+1.5 pts+3.0 pts+4.3 pts
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Nearly one in five adults in Ontario never finished high school, well above the national share: only 80.8% have a diploma or equivalent, against 89.3% nationally. Since 2006–10, the share with a diploma has risen 1.5 points, mirroring the country. Only seven of the 115 Oregon cities with 5,000+ people have a lower share of high school graduates.

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in Ontario

Unemployment, % of the labor force
PeriodOntarioOregonU.S.
2006–1010.2%8.8%8.1%
2010–1413.6%10.6%9.4%
2015–197.6%5.6%5.6%
2020–244.6%5.3%5.4%
Change−5.6 pts−3.5 pts−2.7 pts
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Unemployment in Ontario runs below the national rate: 4.6% of the labor force was out of work and looking, against 5.4% nationally. Unemployment has fallen 5.6 points since 2006–10, in line with the national trend. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

Ontario compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Ontario2.6536.915.7%39.8%11.9%1976$82114.1%80.8%4.6%
Payette2.7838.110.4%36.0%6.0%1971$90612.2%81.6%5.3%
Fruitland2.8540.17.0%23.7%9.7%1989$85918.4%87.3%1.8%
Crystal3.0041.55.0%19.9%8.5%1979$84625.4%86.0%4.3%
New Plymouth2.5841.59.1%12.6%4.0%1981$1,03122.2%92.4%3.1%
Nyssa3.1830.420.0%32.5%14.0%1961$88616.5%81.9%6.3%
Vale2.8338.59.4%30.6%10.2%1967$88318.3%85.0%3.7%
Weiser2.6045.414.7%29.2%8.3%1968$93019.1%87.6%5.6%
Jonathan2.9454.48.8%10.9%12.0%1981$1,07023.9%92.6%3.6%
Parma2.7737.213.3%28.4%4.0%1982$1,00719.4%86.6%2.3%
Eaton2.9060.44.6%3.5%10.8%1982$1,00627.9%94.2%0.0%

All figures 2020–24.

Cities with similar populations: Murphy, TX · Payson, AZ · Paradise Valley, AZ · Pampa, TX · Palos Hills, IL · Palisades Park, NJ · Newberry, SC · New Haven, IN · Nevada City, CA · Muscle Shoals, AL

About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Ontario. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

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