Population 830,774 · Census ACS 2020–24
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Population and households in Hamilton County
Household size in Hamilton County
| Period | Hamilton County | Cincinnati area | Ohio | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.44 | 2.59 | 2.51 | 2.68 |
| 2010–14 | 2.43 | 2.61 | 2.51 | 2.73 |
| 2015–19 | 2.38 | 2.55 | 2.47 | 2.71 |
| 2020–24 | 2.38 | 2.55 | 2.46 | 2.65 |
| Change | −0.06 | −0.04 | −0.05 | −0.03 |
Hamilton County is a place of small households, averaging 2.38 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Since 2006–10, household size has edged down from 2.44, in line with the national trend. The biggest households, usually families with children, are concentrated in the northwest.
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 Hamilton County
| Period | Hamilton County | Cincinnati area | Ohio | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.0 | 37.6 | 39.0 | 37.7 |
| 2010–14 | 38.6 | 38.6 | 40.0 | 38.6 |
| 2015–19 | 39.0 | 39.4 | 40.7 | 39.6 |
| 2020–24 | 38.7 | 39.5 | 40.8 | 40.1 |
| Change | +0.7 | +1.9 | +1.8 | +2.3 |
Half of the people in Hamilton County are younger than 38.7 and half are older, close to the national median of 40.1. The median age has crept up from 38.0 in 2006–10, a smaller shift than nationally. Few Ohio counties are younger: only five of 88.
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 Hamilton County
| Period | Hamilton County | Cincinnati area | Ohio | U.S. |
|---|---|---|---|---|
| 2006–10 | 13.6% | 11.8% | 11.7% | 12.3% |
| 2010–14 | 13.9% | 12.0% | 11.9% | 12.3% |
| 2015–19 | 13.3% | 11.6% | 11.7% | 11.6% |
| 2020–24 | 12.3% | 11.4% | 11.7% | 11.6% |
| Change | −1.3 pts | −0.4 pts | −0.0 pts | −0.6 pts |
Single-parent households are about as common in Hamilton County as they are nationally: 12.3%, against 11.6%. The single-parent share has edged down 1.3 points since 2006–10, as it has nationally.
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 Hamilton County
Renters in Hamilton County
| Period | Hamilton County | Cincinnati area | Ohio | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.8% | 30.9% | 30.8% | 33.3% |
| 2010–14 | 41.0% | 32.8% | 33.1% | 35.6% |
| 2015–19 | 42.1% | 33.6% | 33.9% | 36.0% |
| 2020–24 | 40.7% | 31.7% | 32.8% | 34.8% |
| Change | +1.9 pts | +0.8 pts | +2.0 pts | +1.5 pts |
About four in ten households in Hamilton County rent their homes (40.7%), a bit above the national share of 34.8%. Just over a third of owners (35.5%) have paid off their mortgages, below the national share of 39.8%. The renter share is up 1.9 points from 2006–10, mirroring the country. Only one other Ohio county has a higher share of renters.
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 Hamilton County
| Period | Hamilton County | Cincinnati area | Ohio | U.S. |
|---|---|---|---|---|
| 2006–10 | 12.9% | 10.9% | 10.8% | 11.4% |
| 2010–14 | 12.5% | 10.7% | 10.8% | 11.4% |
| 2015–19 | 10.0% | 9.0% | 10.2% | 11.1% |
| 2020–24 | 8.0% | 7.2% | 8.7% | 9.6% |
| Change | −4.9 pts | −3.7 pts | −2.2 pts | −1.8 pts |
Fewer homes sit empty in Hamilton County than nationally: 8.0%, against 9.6% for the U.S. That is in line with the rest of the Cincinnati area. Since 2006–10, vacancy has fallen 4.9 points, mirroring the country.
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 Hamilton County
| Period | Hamilton County | Cincinnati area | Ohio | U.S. |
|---|---|---|---|---|
| 2006–10 | 1961 | 1973 | 1968 | 1974 |
| 2010–14 | 1961 | 1973 | 1969 | 1975 |
| 2015–19 | 1962 | 1974 | 1970 | 1977 |
| 2020–24 | 1964 | 1977 | 1972 | 1980 |
| Change | +4 | +4 | +4 | +6 |
The housing in Hamilton County is old by national standards: the median home dates to 1964, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. The median year built has moved up from 1961 in 2006–10, a sign of steady new building. Newer construction is concentrated in the northwest, while the center has the oldest housing.
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 Hamilton County
| Period | Hamilton County | Cincinnati area | Ohio | U.S. |
|---|---|---|---|---|
| 2006–10 | $789 | $826 | $765 | $965 |
| 2010–14 | $845 | $888 | $814 | $1,040 |
| 2015–19 | $926 | $987 | $901 | $1,213 |
| 2020–24 | $1,250 | $1,263 | $1,142 | $1,571 |
| Change | +$461 | +$437 | +$377 | +$606 |
Rent in Hamilton County runs $1,250 a month at the median, utilities included, well below the U.S. median of $1,571. Rent has climbed $461 a month since 2006–10, up 58%, a slower climb than the nation's. The typical renter here spends 30.7% of household income on rent, just over the 30% mark often used to define affordable rent. Renters on a budget will find the lowest rents in the center; the highest are in the northeast.
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 Hamilton County
Bachelor's degrees in Hamilton County
| Period | Hamilton County | Cincinnati area | Ohio | U.S. |
|---|---|---|---|---|
| 2006–10 | 32.6% | 29.2% | 25.4% | 28.4% |
| 2010–14 | 33.9% | 30.8% | 26.5% | 29.6% |
| 2015–19 | 37.8% | 34.1% | 28.9% | 32.1% |
| 2020–24 | 41.2% | 37.0% | 31.9% | 35.6% |
| Change | +8.6 pts | +7.8 pts | +6.5 pts | +7.2 pts |
College degrees are a bit more common in Hamilton County than nationally: 41.2% of adults 25 and older have a bachelor's or higher, against 35.6%. Since 2006–10, the share with a degree has risen 8.6 points, in line with the national trend. Only five of Ohio's 88 counties have a higher 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 Hamilton County
| Period | Hamilton County | Cincinnati area | Ohio | U.S. |
|---|---|---|---|---|
| 2006–10 | 87.5% | 87.7% | 87.7% | 84.9% |
| 2010–14 | 88.7% | 89.3% | 88.9% | 86.1% |
| 2015–19 | 91.1% | 91.1% | 90.4% | 87.7% |
| 2020–24 | 92.5% | 92.4% | 91.7% | 89.3% |
| Change | +5.0 pts | +4.7 pts | +4.0 pts | +4.3 pts |
High school completion in Hamilton County is a bit above the national rate: 92.5% of adults have a diploma or equivalent, against 89.3%. The picture is much the same across the Cincinnati area. The share with a diploma is up 5.0 points from 2006–10, mirroring the country.
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 Hamilton County
| Period | Hamilton County | Cincinnati area | Ohio | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.2% | 7.5% | 8.7% | 8.1% |
| 2010–14 | 10.1% | 8.6% | 9.4% | 9.4% |
| 2015–19 | 5.9% | 4.7% | 5.5% | 5.6% |
| 2020–24 | 5.3% | 4.5% | 4.9% | 5.4% |
| Change | −2.9 pts | −3.0 pts | −3.8 pts | −2.7 pts |
At 5.3%, unemployment in Hamilton County is close to the national rate of 5.4%. The rate is higher than in the Cincinnati area overall (4.5%). Unemployment is down 2.9 points from 2006–10, in line with the national trend.
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).
Hamilton 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Hamilton County | 2.38 | 38.7 | 12.3% | 40.7% | 8.0% | 1964 | $1,250 | 41.2% | 92.5% | 5.3% |
| Campbell County | 2.39 | 40.1 | 9.6% | 28.9% | 7.0% | 1971 | $1,190 | 40.2% | 94.0% | 4.0% |
| Kenton County | 2.61 | 38.2 | 11.1% | 29.3% | 8.1% | 1974 | $1,228 | 36.2% | 92.7% | 4.3% |
| Clermont County | 2.52 | 41.6 | 11.5% | 26.4% | 5.2% | 1987 | $1,187 | 31.1% | 91.6% | 4.2% |
| Dearborn County | 2.56 | 43.6 | 8.4% | 14.8% | 4.7% | 1982 | $922 | 25.0% | 92.7% | 2.1% |
| Ripley County | 2.53 | 41.3 | 10.9% | 23.2% | 8.5% | 1977 | $863 | 20.9% | 90.7% | 3.1% |
| Highland County | 2.57 | 41.3 | 10.2% | 25.7% | 11.8% | 1979 | $814 | 16.5% | 87.9% | 3.2% |
| Jennings County | 2.52 | 41.4 | 13.5% | 21.2% | 7.3% | 1983 | $1,000 | 14.5% | 87.1% | 4.9% |
| Bartholomew County | 2.53 | 39.2 | 10.7% | 30.7% | 7.6% | 1981 | $1,154 | 33.4% | 91.7% | 4.1% |
| Pike County | 2.52 | 41.5 | 13.3% | 31.5% | 10.5% | 1980 | $902 | 15.9% | 86.6% | 5.1% |
| Brown County | 2.36 | 49.1 | 6.5% | 13.4% | 18.9% | 1984 | $975 | 26.2% | 94.4% | 2.2% |
All figures 2020–24.
Counties with similar populations: Wayne County, MI · Philadelphia County, PA · Salt Lake County, UT · Wake County, NC · Westchester County, NY · Travis County, TX · Pima County, AZ · Suffolk County, NY · Sacramento County, CA · New York County, NY
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 Hamilton 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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