Population 426,378 · Census ACS 2020–24
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Population and households in Hillsborough County
Household size in Hillsborough County
| Period | Hillsborough County | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 2.59 | 2.52 | 2.68 |
| 2010–14 | 2.59 | 2.50 | 2.73 |
| 2015–19 | 2.56 | 2.49 | 2.71 |
| 2020–24 | 2.54 | 2.51 | 2.65 |
| Change | −0.05 | −0.01 | −0.03 |
Households in Hillsborough County run a little small, averaging 2.54 people against 2.65 nationally, which usually means more singles and couples and fewer children. Since 2006–10, household size has edged down from 2.59, as it has nationally. Among New Hampshire's ten counties, though, only two have larger households.
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 Hillsborough County
| Period | Hillsborough County | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 39.2 | 40.6 | 37.7 |
| 2010–14 | 40.3 | 42.1 | 38.6 |
| 2015–19 | 41.4 | 43.3 | 39.6 |
| 2020–24 | 42.2 | 44.2 | 40.1 |
| Change | +3.0 | +3.5 | +2.3 |
The median resident of Hillsborough County is 42.2 years old, a bit older than the national median of 40.1. Even so, the population here is younger than in New Hampshire as a whole, where the median age is 44.2. The median age has climbed from 39.2 in 2006–10, in line with the national trend. Only one other New Hampshire county is 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 Hillsborough County
| Period | Hillsborough County | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 10.5% | 9.4% | 12.3% |
| 2010–14 | 10.4% | 9.5% | 12.3% |
| 2015–19 | 9.6% | 8.9% | 11.6% |
| 2020–24 | 9.6% | 8.5% | 11.6% |
| Change | −0.9 pts | −0.9 pts | −0.6 pts |
Single parents head about one in ten households in Hillsborough County (9.6%), a little below the national share of 11.6%. Even so, single parents are more common here than in New Hampshire overall (8.5%). No other New Hampshire county has a higher share of single-parent households.
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 Hillsborough County
Renters in Hillsborough County
| Period | Hillsborough County | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 31.0% | 27.4% | 33.3% |
| 2010–14 | 33.1% | 29.0% | 35.6% |
| 2015–19 | 33.9% | 28.9% | 36.0% |
| 2020–24 | 32.6% | 27.2% | 34.8% |
| Change | +1.6 pts | −0.1 pts | +1.5 pts |
Renting in Hillsborough County is about as common as it is nationally: 32.6% of households rent, against 34.8%. Renters make up a bigger share here than in New Hampshire overall (27.2%). The renter share is up 1.6 points from 2006–10, mirroring the country. Only one other New Hampshire 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 Hillsborough County
| Period | Hillsborough County | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 8.2% | 12.6% | 11.4% |
| 2010–14 | 8.0% | 12.5% | 11.4% |
| 2015–19 | 6.5% | 12.7% | 11.1% |
| 2020–24 | 6.0% | 11.7% | 9.6% |
| Change | −2.2 pts | −0.9 pts | −1.8 pts |
Vacancy is on the low side in Hillsborough County: 6.0% of homes sit empty, against 9.6% nationally, which points to steady demand for housing. Vacancy has fallen 2.2 points since 2006–10, mirroring the country. No other New Hampshire county has a lower vacancy rate.
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 Hillsborough County
| Period | Hillsborough County | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 1970 | 1971 | 1974 |
| 2010–14 | 1970 | 1972 | 1975 |
| 2015–19 | 1972 | 1973 | 1977 |
| 2020–24 | 1974 | 1976 | 1980 |
| Change | +4 | +5 | +6 |
Homes in Hillsborough County run a bit older than the national norm, with a median build year of 1974 against 1980. The median year built has moved up from 1970 in 2006–10, a sign of steady new building. The newest homes are mostly in the southwest, the oldest in the northeast.
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 Hillsborough County
| Period | Hillsborough County | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | $1,104 | $1,018 | $965 |
| 2010–14 | $1,182 | $1,094 | $1,040 |
| 2015–19 | $1,317 | $1,224 | $1,213 |
| 2020–24 | $1,733 | $1,597 | $1,571 |
| Change | +$629 | +$580 | +$606 |
Rent in Hillsborough County runs $1,733 a month at the median, utilities included, above the U.S. median of $1,571. Rents are up $629 a month from 2006–10, a 57% rise, a slower climb than the nation's. Rent takes 31.6% of the typical renter's income, just over the 30% mark often used to define affordable rent. Only one other New Hampshire county has higher 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 Hillsborough County
Bachelor's degrees in Hillsborough County
| Period | Hillsborough County | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 34.3% | 33.5% | 28.4% |
| 2010–14 | 35.4% | 35.0% | 29.6% |
| 2015–19 | 37.9% | 37.6% | 32.1% |
| 2020–24 | 41.5% | 41.1% | 35.6% |
| Change | +7.2 pts | +7.6 pts | +7.2 pts |
College degrees are a bit more common in Hillsborough County than nationally: 41.5% of adults 25 and older have a bachelor's or higher, against 35.6%. Since 2006–10, the share with a degree has risen 7.2 points, in line with the national trend. Few New Hampshire counties have a higher share of college graduates: only two of 10.
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 Hillsborough County
| Period | Hillsborough County | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 90.3% | 91.0% | 84.9% |
| 2010–14 | 90.7% | 92.0% | 86.1% |
| 2015–19 | 91.9% | 93.1% | 87.7% |
| 2020–24 | 93.4% | 94.5% | 89.3% |
| Change | +3.1 pts | +3.5 pts | +4.3 pts |
High school completion in Hillsborough County is above the national rate: 93.4% of adults have a diploma or equivalent, against 89.3%. The share with a diploma has risen 3.1 points since 2006–10, in line with the national trend. Among New Hampshire's ten counties, though, only two 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 Hillsborough County
| Period | Hillsborough County | New Hampshire | U.S. |
|---|---|---|---|
| 2006–10 | 6.1% | 5.9% | 8.1% |
| 2010–14 | 6.9% | 6.6% | 9.4% |
| 2015–19 | 4.1% | 3.6% | 5.6% |
| 2020–24 | 2.9% | 3.4% | 5.4% |
| Change | −3.2 pts | −2.5 pts | −2.7 pts |
The job market in Hillsborough County has been strong: just 2.9% of the labor force was out of work and looking, well below the national rate of 5.4%. Only one other New Hampshire county has lower unemployment. Since 2006–10, unemployment has fallen 3.2 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).
Hillsborough 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Hillsborough County | 2.54 | 42.2 | 9.6% | 32.6% | 6.0% | 1974 | $1,733 | 41.5% | 93.4% | 2.9% |
| Rockingham County | 2.56 | 45.2 | 7.9% | 21.6% | 7.8% | 1982 | $1,853 | 46.2% | 96.2% | 3.6% |
| Cheshire County | 2.45 | 44.7 | 8.4% | 27.3% | 13.8% | 1970 | $1,331 | 35.8% | 94.5% | 3.2% |
| Windham County | 2.24 | 46.8 | 9.8% | 26.1% | 25.3% | 1969 | $1,052 | 44.0% | 95.4% | 4.6% |
| Bennington County | 2.46 | 47.8 | 8.8% | 26.3% | 23.1% | 1969 | $1,226 | 41.9% | 94.2% | 3.9% |
| Schenectady County | 2.39 | 40.2 | 11.6% | 36.0% | 7.4% | 1958 | $1,287 | 35.9% | 90.6% | 6.4% |
| Montgomery County | 2.54 | 40.2 | 11.1% | 29.6% | 14.4% | 1954 | $917 | 23.3% | 88.5% | 4.4% |
| Madison County | 2.32 | 42.5 | 9.5% | 21.7% | 13.9% | 1963 | $962 | 31.5% | 92.7% | 4.3% |
| Cayuga County | 2.32 | 44.3 | 12.1% | 28.6% | 13.5% | 1957 | $1,054 | 24.7% | 90.0% | 3.7% |
| Seneca County | 2.33 | 44.0 | 8.5% | 29.0% | 16.0% | 1960 | $1,016 | 25.7% | 86.0% | 4.6% |
| Ontario County | 2.28 | 45.1 | 9.2% | 26.3% | 8.5% | 1973 | $1,220 | 38.2% | 93.5% | 3.6% |
All figures 2020–24.
Counties with similar populations: York County, PA · Hamilton County, IN · Hampden County, MA · Clark County, WA · Burlington County, NJ · Tulare County, CA · Washoe County, NV · Manatee County, FL · Mercer County, NJ · Pulaski County, AR
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 Hillsborough 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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