Carroll County, New Hampshire Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Carroll County, NH Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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B
Health Around averageAmong the 5 least healthy counties in New Hampshire
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B
Income Around averageAmong the top 5 wealthiest counties in New Hampshire
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B
Education Around averageAmong the top 5 best educated counties in New Hampshire
Source: Map AI Methodology
Population: density and quick facts
| Metric | Carroll County | New Hampshire Avg | U.S. Average |
|---|---|---|---|
| Population | 51,798 | 1,394,471 | 337,468,954 |
| Population density (per sq mi) | 52.1 | 149.1 | 86.4 |
| Population growth (%/yr) | 1.11% | 0.62% | 0.59% |
| Median age | 53.3 | 41.3 | 37.3 |
| Households | 21,848 | 555,445 | 130,235,071 |
Population in Carroll County grew by 8.7% from 2009 to 2024, reaching 51,798 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Carroll County is Boomers, aged 61–79, at 28.2% of residents. That is 9.0 points above New Hampshire as a whole.
- Gen Z 13–28 7,661 14.8% -5.1 pts
- Millennials 29–44 8,303 16.0% -4.5 pts
- Gen X 45–60 12,812 24.7% +1.7 pts
- Boomers 61–79 14,614 28.2% +9.0 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below New Hampshire, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 49.8% of the people living in Carroll County and men 50.2%.
- Women 49.8% New Hampshire 50.3%
- Men 50.2% New Hampshire 49.7%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Carroll County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Carroll County has a the economy index of B, which means it is quite prosperous.
| Metric | Carroll County | New Hampshire Avg | U.S. Average |
|---|---|---|---|
| Median household income | $86,264 | $99,079 | $80,455 |
| Income growth (%/yr) | 5.40% | 4.69% | 4.80% |
| Unemployment rate | 5.1% | 3.3% | 5.2% |
The median household income in Carroll County is about 13% lower than in New Hampshire.
Housing
| Metric | Carroll County | New Hampshire Avg | U.S. Average |
|---|---|---|---|
| Median home price | $294,696 | $300,691 | $248,835 |
| Median rent | $1,194 | $1,490 | $1,407 |
| Homeownership rate | 83.4% | 72.8% | 65.2% |
The median home price in Carroll County is about 20.6 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,194 per month for that long.
Commute Time & Mobility
Commuters in Carroll County spend about 43 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 177 hours, about 7.4 full days, spent commuting.
| Metric | Carroll County | New Hampshire Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 21.3 | 22.5 | 22.4 |
| Round-trip commute (min) | 42.6 | 45.0 | 44.8 |
| Yearly time spent (hours) | 177 | 188 | 187 |
| Estimated yearly cost | $5,499 | $5,813 | $5,790 |
| Work from home | 16.2% | 16.8% | 15.0% |
| Highway traffic (vehicles/day) | 4,406 | 8,168 | 8,813 |
| Local road traffic (vehicles/day) | 920 | 1,232 | 1,355 |
Fastest commutes among counties in
New Hampshire:
Coos County (17.5 min), Grafton County (17.5 min), Cheshire County (18.6 min).
Slowest:
Rockingham County (25.8 min), Sullivan County (23.5 min), Merrimack County (23.0 min).
The average commute time in Carroll County is 21 minutes, shorter than the 23 minutes in New Hampshire.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Carroll County has a education index of B, which means it is quite educated.
| Metric | Carroll County | New Hampshire Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 35.4% | 36.2% | 31.6% |
| Average household size | 2.34 | 2.44 | 2.53 |
Highest education index among counties in
New Hampshire:
Rockingham County (0.4), Grafton County (0.4), Hillsborough County (0.3).
Lowest:
Coos County (0.2), Sullivan County (0.3), Cheshire County (0.3).
Health
Carroll County has a health index of B, which means it is quite healthy.
| Metric | Carroll County | New Hampshire Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 82.5 | 80.2 | 78.3 |
| Self-rated poor health | 13.4% | 12.6% | 16.3% |
| Smokers | 15.4% | 16.0% | 19.0% |
Highest health index among counties in
New Hampshire:
Rockingham County (0.8), Merrimack County (0.8), Grafton County (0.8).
Lowest:
Coos County (0.8), Sullivan County (0.8), Belknap County (0.8).
Carroll County, NH Compared With Nearby Counties
Carroll County, NH is the smallest of the 6 counties compared here, 51,798 residents against a local median of 132,534. Nothing separates Carroll County, NH sharply from the counties around it. Each measure below lands within 15% of the local median, close enough that the differences are within what survey sampling alone would produce.
The largest of those small differences is median home price, 8% above the local median at $294,696 against $272,189. Carroll County, NH has the 3rd highest median home price of the 6 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Carroll County, NH | 51,798 | $86,264 #6/6 | $294,696 #3/6 | 21.3 min #3/6 |
| Belknap County, NH | 64,647 | $93,156 | $233,409 | 20.4 min |
| Strafford County, NH | 132,534 | $91,007 | $237,678 | 22.0 min |
| Grafton County, NH | 92,112 | $89,036 | $272,189 | 17.5 min |
| York County, ME | 216,704 | $88,726 | $408,842 | 23.9 min |
| Merrimack County, NH | 155,964 | $97,117 | $319,378 | 23.0 min |
Frequently Asked Questions
Common questions about Carroll County, New Hampshire.
How many people live in Carroll County, New Hampshire?
About 51,798 people live in Carroll County, New Hampshire, in 21,848 households of 2.3 people on average. The median age is 53.3, so residents are older than the U.S. median of 37.3 by about 16 years.
Is Carroll County, New Hampshire mostly urban or rural?
Averaged over its land area, Carroll County, New Hampshire has 52 people per square mile, a density typical of rural areas. That is about 60% of the U.S. average of 86.
Is Carroll County, New Hampshire an affordable place to live?
The median home costs 3.4 times the median household income ($294,696 against $86,264), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,194 a month takes about 17% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
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