Hillsborough County vs Merrimack County
A side-by-side comparison of Hillsborough County and Merrimack County: population, income, housing, and more.
Hillsborough County and Merrimack County are counties in New Hampshire. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
Hillsborough County has the higher population (424,732 vs 155,018 in Merrimack County). Hillsborough County has the higher median household income ($100,436 vs $93,944 in Merrimack County). Hillsborough County has the higher median home value ($385,500 vs $330,600 in Merrimack County).
Population, income & housing
| Hillsborough County | Merrimack County | |
|---|---|---|
| Population | 424,732 | 155,018 |
| Median age | 41.0 yrs | 42.6 yrs |
| Median household income | $100,436 | $93,944 |
| Median home value | $385,500 | $330,600 |
| Median gross rent | $1,532 | $1,293 |
| Housing units | 176,753 | 66,080 |
| Homeownership rate | 67.5% | 73.5% |
| Bachelor's degree or higher | 40.6% | 38.1% |
| Unemployment rate | 3.3% | 3.1% |
Trends (ACS 5-year, 2019–2023)
| Hillsborough County | Merrimack County | |
|---|---|---|
| Population | 413,035 → 424,732 (+2.8%) | 149,917 → 155,018 (+3.4%) |
| Median household income | $81,460 → $100,436 (+23.3%) | $75,737 → $93,944 (+24.0%) |
| Median home value | $274,800 → $385,500 (+40.3%) | $237,600 → $330,600 (+39.1%) |
| Median gross rent | $1,191 → $1,532 (+28.6%) | $1,042 → $1,293 (+24.1%) |
Hillsborough County
413,035424,732
$81,460$100,436
$274,800$385,500
$1,191$1,532
Merrimack County
149,917155,018
$75,737$93,944
$237,600$330,600
$1,042$1,293
Age & race/ethnicity
Age distribution (share)
| Hillsborough County | Merrimack County | |
|---|---|---|
| Under 5 | 5.1% | 4.5% |
| 5 to 17 | 14.8% | 14.1% |
| 18 to 24 | 8.3% | 9.1% |
| 25 to 34 | 14.1% | 12.7% |
| 35 to 44 | 12.9% | 12.5% |
| 45 to 54 | 13.2% | 12.6% |
| 55 to 64 | 14.9% | 15.1% |
| 65 to 74 | 10.1% | 11.9% |
| 75 and over | 6.6% | 7.4% |
Race & ethnicity (share)
| Hillsborough County | Merrimack County | |
|---|---|---|
| White (non-Hispanic) | 80.9% | 90.6% |
| Black or African American | 2.3% | 1.5% |
| American Indian & Alaska Native | 0.1% | 0.1% |
| Asian | 4.2% | 1.6% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.4% | 0.2% |
| Two or more races | 3.8% | 3.3% |
| Hispanic or Latino | 8.3% | 2.6% |
Educational attainment (age 25+)
Share of adults 25+
| Hillsborough County | Merrimack County | |
|---|---|---|
| No high school diploma | 7.0% | 6.3% |
| High school graduate | 25.6% | 28.2% |
| Some college or associate's | 26.8% | 27.4% |
| Bachelor's degree | 25.4% | 22.2% |
| Graduate or professional degree | 15.2% | 15.9% |
Commute to work
How workers get to work (share)
| Hillsborough County | Merrimack County | |
|---|---|---|
| Drove alone | 72.9% | 75.0% |
| Carpooled | 7.4% | 7.7% |
| Public transit | 0.6% | 0.3% |
| Walked | 1.7% | 2.7% |
| Bicycle | 0.2% | 0.3% |
| Worked from home | 16.1% | 13.1% |
| Other means | 1.1% | 0.9% |
Housing
Units in structure (share)
| Hillsborough County | Merrimack County | |
|---|---|---|
| 1-unit, detached | 56.7% | 63.2% |
| 1-unit, attached | 5.9% | 4.4% |
| 2 to 4 units | 14.4% | 11.5% |
| 5 to 19 units | 9.1% | 7.2% |
| 20 or more units | 11.8% | 7.1% |
| Mobile home & other | 2.0% | 6.6% |
Poverty & households
| Hillsborough County | Merrimack County | |
|---|---|---|
| Poverty rate | 6.5% | 7.1% |
| Average household size | 2.48 | 2.46 |
| Mean commute (minutes) | 27 | 27 |
| Median year structure built | 1977 | 1977 |
Full profiles
2Related rankings
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