Population 112,625 · Census ACS 2020–24
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Population and households in Ontario County
Household size in Ontario County
| Period | Ontario County | Rochester area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.42 | 2.49 | 2.68 | 2.68 |
| 2010–14 | 2.40 | 2.46 | 2.72 | 2.73 |
| 2015–19 | 2.38 | 2.41 | 2.69 | 2.71 |
| 2020–24 | 2.28 | 2.35 | 2.65 | 2.65 |
| Change | −0.15 | −0.14 | −0.03 | −0.03 |
Ontario County is a place of small households, averaging 2.28 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Household size has dropped from 2.42 in 2006–10, a much bigger shift than nationally. The biggest households, usually families with children, are concentrated in the north.
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 County
| Period | Ontario County | Rochester area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 41.8 | 39.5 | 38.3 | 37.7 |
| 2010–14 | 42.7 | 40.4 | 39.0 | 38.6 |
| 2015–19 | 44.3 | 41.6 | 40.2 | 39.6 |
| 2020–24 | 45.1 | 42.2 | 40.8 | 40.1 |
| Change | +3.3 | +2.7 | +2.5 | +2.3 |
With a median age of 45.1, Ontario County is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. The median age has climbed from 41.8 in 2006–10, as it has nationally. Residents skew youngest in the north and oldest in the south.
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 County
| Period | Ontario County | Rochester area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.7% | 12.5% | 13.1% | 12.3% |
| 2010–14 | 11.1% | 12.3% | 12.7% | 12.3% |
| 2015–19 | 10.6% | 12.1% | 11.6% | 11.6% |
| 2020–24 | 9.2% | 11.3% | 11.6% | 11.6% |
| Change | −0.5 pts | −1.1 pts | −1.5 pts | −0.6 pts |
Single parents head just over one in twelve households in Ontario County (9.2%), below the national share of 11.6%. The single-parent share has edged down 0.5 points since 2006–10, mirroring the country.
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 County
Renters in Ontario County
| Period | Ontario County | Rochester area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 24.5% | 30.6% | 44.8% | 33.3% |
| 2010–14 | 26.9% | 32.4% | 46.2% | 35.6% |
| 2015–19 | 26.2% | 33.2% | 46.2% | 36.0% |
| 2020–24 | 26.3% | 32.7% | 45.7% | 34.8% |
| Change | +1.8 pts | +2.1 pts | +0.9 pts | +1.5 pts |
Most households in Ontario County own their homes; 26.3% rent, below the national share of 34.8%. Among homeowners, 43.2% have no mortgage at all, above the national share of 39.8%. Rentals cluster in the center; owners are most common in the south. The renter share is up 1.8 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 County
| Period | Ontario County | Rochester area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.0% | 9.8% | 10.3% | 11.4% |
| 2010–14 | 9.2% | 8.8% | 10.4% | 11.4% |
| 2015–19 | 11.0% | 9.6% | 11.0% | 11.1% |
| 2020–24 | 8.5% | 8.0% | 9.7% | 9.6% |
| Change | −0.5 pts | −1.8 pts | −0.6 pts | −1.8 pts |
About as many homes sit empty in Ontario County as nationally: 8.5%, against 9.6%. Compared with other New York counties, Ontario County has a lower vacancy rate than most.
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 County
| Period | Ontario County | Rochester area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 1968 | 1963 | 1956 | 1974 |
| 2010–14 | 1968 | 1964 | 1957 | 1975 |
| 2015–19 | 1970 | 1965 | 1958 | 1977 |
| 2020–24 | 1973 | 1966 | 1961 | 1980 |
| Change | +6 | +3 | +5 | +6 |
Housing in Ontario County leans older: the median home dates to 1973, against 1980 nationally. Still, homes here are newer than in the wider Rochester area, where the median home dates to 1966. The newest homes are mostly in the northwest, the oldest in the northeast. Of New York's 62 counties, only five have newer homes.
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 County
| Period | Ontario County | Rochester area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | $785 | $810 | $1,095 | $965 |
| 2010–14 | $841 | $857 | $1,201 | $1,040 |
| 2015–19 | $1,002 | $985 | $1,426 | $1,213 |
| 2020–24 | $1,220 | $1,225 | $1,794 | $1,571 |
| Change | +$435 | +$415 | +$698 | +$606 |
Rent in Ontario County runs $1,220 a month at the median, utilities included, well below the U.S. median of $1,571. Rent has climbed $435 a month since 2006–10, up 55%, a slower climb than the nation's. Rent takes 28.2% of the typical renter's income, just under the 30% mark often used to define affordable rent. Renters on a budget will find the lowest rents in the west; the highest are in the south.
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 County
Bachelor's degrees in Ontario County
| Period | Ontario County | Rochester area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 31.5% | 32.1% | 31.9% | 28.4% |
| 2010–14 | 32.2% | 32.8% | 33.4% | 29.6% |
| 2015–19 | 36.7% | 35.3% | 36.2% | 32.1% |
| 2020–24 | 38.2% | 37.9% | 39.8% | 35.6% |
| Change | +6.8 pts | +5.9 pts | +8.0 pts | +7.2 pts |
College degrees are about as common in Ontario County as nationally: 38.2% of adults 25 and older have a bachelor's or higher, against 35.6%. The share with a degree is up 6.8 points from 2006–10, in line with the national trend. College graduates are most concentrated in the northwest and least in the northeast.
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 County
| Period | Ontario County | Rochester area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 91.6% | 88.2% | 84.0% | 84.9% |
| 2010–14 | 91.5% | 89.7% | 84.9% | 86.1% |
| 2015–19 | 93.9% | 90.2% | 86.5% | 87.7% |
| 2020–24 | 93.5% | 91.8% | 87.3% | 89.3% |
| Change | +1.8 pts | +3.6 pts | +3.3 pts | +4.3 pts |
High school completion in Ontario County is above the national rate: 93.5% of adults have a diploma or equivalent, against 89.3%. The share with a diploma is up 1.8 points from 2006–10, as it has nationally. Few New York counties have a higher share of high school graduates: only four of 62.
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 County
| Period | Ontario County | Rochester area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.8% | 7.2% | 7.7% | 8.1% |
| 2010–14 | 6.6% | 8.4% | 9.2% | 9.4% |
| 2015–19 | 3.4% | 5.4% | 5.7% | 5.6% |
| 2020–24 | 3.6% | 4.9% | 6.6% | 5.4% |
| Change | −2.1 pts | −2.3 pts | −1.2 pts | −2.7 pts |
Unemployment in Ontario County runs below the national rate: 3.6% of the labor force was out of work and looking, against 5.4% nationally. Few New York counties have lower unemployment: only four of 62. Since 2006–10, unemployment has fallen 2.1 points, as it has nationally.
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 County compared with nearby counties
| County | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Ontario County | 2.28 | 45.1 | 9.2% | 26.3% | 8.5% | 1973 | $1,220 | 38.2% | 93.5% | 3.6% |
| Seneca County | 2.33 | 44.0 | 8.5% | 29.0% | 16.0% | 1960 | $1,016 | 25.7% | 86.0% | 4.6% |
| Cayuga County | 2.32 | 44.3 | 12.1% | 28.6% | 13.5% | 1957 | $1,054 | 24.7% | 90.0% | 3.7% |
| Genesee County | 2.32 | 43.0 | 9.1% | 26.2% | 5.8% | 1955 | $924 | 23.9% | 92.9% | 4.7% |
| Onondaga County | 2.32 | 41.2 | 11.2% | 34.1% | 8.2% | 1966 | $1,199 | 39.8% | 91.6% | 5.4% |
| Erie County | 2.34 | 41.6 | 11.5% | 34.2% | 8.3% | 1959 | $1,156 | 37.3% | 91.9% | 5.2% |
| Madison County | 2.32 | 42.5 | 9.5% | 21.7% | 13.9% | 1963 | $962 | 31.5% | 92.7% | 4.3% |
| Herkimer County | 2.31 | 44.8 | 10.1% | 23.4% | 16.1% | 1958 | $838 | 24.6% | 91.7% | 4.4% |
| Montgomery County | 2.54 | 40.2 | 11.1% | 29.6% | 14.4% | 1954 | $917 | 23.3% | 88.5% | 4.4% |
| Fulton County | 2.29 | 44.8 | 12.5% | 28.6% | 16.5% | 1958 | $945 | 21.7% | 90.0% | 3.4% |
| Schenectady County | 2.39 | 40.2 | 11.6% | 36.0% | 7.4% | 1958 | $1,287 | 35.9% | 90.6% | 6.4% |
All figures 2020–24.
Counties with similar populations: LaPorte County, IN · Yamhill County, OR · Woodbury County, IA · Windham County, CT · Wicomico County, MD · Whitfield County, GA · Wayne County, OH · Wayne County, NC · Warren County, NJ · Walworth County, WI
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 County. 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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