Carroll County, New Hampshire Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 8th-largest in New Hampshire
The population of Carroll County, New Hampshire is 51,259 as of the 2023 American Community Survey, making it the 8th-largest county in New Hampshire. The median household income is $82,961, the median home value is $348,900, and the median age is 54.2.
The population of Carroll County has grown 9.9% since 2010 (47,834 → 52,580), a +0.68% annualized rate.
51,259
Population
+0.68%
Annual growth
55
People / sq mi
$82,961
Median Income
$348,900
Median Home Value
Carroll County covers 932 sq mi of land at 55.0 people per square mile.
About Carroll County, NH
Carroll County is distinguished by its share of foreign-born residents, 62.2% of the population. Carroll County is a county in New Hampshire with a population of 51,259. It is the #8-largest of all counties in New Hampshire nationally.
Households take in a median $82,961, comfortably above the US median of $78,538. Hardship is rare relative to US counties: a poverty rate of just 4.2%, below the national 12.4%. The median home value is $348,900, with typical rent around $1,179.
Degree attainment is near the top of the range for US counties: 38.8% of adults 25+ hold a bachelor’s, above the 35.0% national rate. An unusually large 15.0% of workers are remote, above the national 14.0%, and the average commute runs about 26 minutes each way.
The large foreign-born share is a defining thread in Carroll County, shaping language, household composition, and the labor force behind the economic figures above.
Carroll County Population History (2010-2024)
The county of Carroll County had a population of 47,834 in 2010 and 52,580 in 2024, a 9.9% growth over 14 years. The peak was 52,580 in 2024. Average annual growth rate: 0.68%.
52,580
Population (2024)
47,834
Population (2010)
52,580
Peak (2024)
0.68%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 47,834 |
| 2011 | 47,691 |
| 2012 | 47,716 |
| 2013 | 47,548 |
| 2014 | 47,470 |
| 2015 | 47,442 |
| 2016 | 47,527 |
| 2017 | 48,176 |
| 2018 | 48,690 |
| 2019 | 48,745 |
| 2020 | 50,240 |
| 2021 | 51,735 |
| 2022 | 52,094 |
| 2023 | 52,373 |
| 2024 | 52,580 |
Race & Ethnicity
| White | 94.8% |
| Black or African American | 0.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.4% |
| Two or More Races | 0.0% |
Age & Sex
54.2
Median Age
49.5%
Female
50.5%
Male
30.1%
Age 65+
Age Distribution
Children (under 15): 12.3% · Seniors (65+): 30.1%
Income & Poverty
| Median household income | $82,961$-12,667 vs state |
| Mean household income | $109,531 |
| Per-capita income | $49,562 |
| Poverty rate | 4.2%-0.2% vs state |
| Unemployment rate | 3.1% |
| Employment-to-population | 55.6% |
Top Industries by Employment
The largest employment sector in Carroll County is professional & business services, accounting for 25.6% of workers.
How residents commute
0.4%
Drive alone
2.1%
Carpool
74.7%
Public transit
15.0%
Work from home
26.3 min
Avg commute
Housing
$348,900$-18,300 vs state
Median home value
$1,179
Median rent
81.2%
Homeownership rate
40,110
Total housing units
55.1%
Occupied
44.9%
Vacant
18.8%
Renter-occupied
Social & access
93.3%
With health insurance
96.4%
With broadband internet
62.2%
Foreign-born
9.1%
Veterans (18+)
16.2%
With a disability
96.4%
Speak language other than English at home
Education
95.6%
High School+
38.8%
Bachelor's+
Largest cities in New Hampshire
Other counties in New Hampshire
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County rankings
Frequently Asked Questions
Carroll County, New Hampshire has a population of 51,259 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 8th-largest county in New Hampshire. Population density is 55 people per square mile.
The population of Carroll County has grown 9.9% since 2010 (47,834 → 52,580), a +0.68% annualized rate.
The median household income in Carroll County, New Hampshire is $82,961, with mean (average) household income of $109,531 and per-capita income of $49,562. 4.2% of residents live below the federal poverty level.
In Carroll County, the largest racial and ethnic groups are White (94.8%), Hispanic or Latino (1.4%), Black or African American (0.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Carroll County, New Hampshire is 54.2 years. Residents are 49.5% female and 50.5% male.
The median home value in Carroll County is $348,900 and median monthly rent is $1,179. 81.2% of occupied housing units are owner-occupied. The county has 40,110 total housing units, 44.9% of which are vacant.
The largest employment sector in Carroll County, New Hampshire is professional, scientific, and management services, employing 25.6% of workers. The unemployment rate is 3.1%.
Manchester is among the largest cities associated with Carroll County, New Hampshire, with a population of 115,415.
Carroll County, NH Climate
Carroll County, NH has an average annual temperature of 6.8°C (44°F) and receives about 1260 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
6.8°C
Avg Temp
1260
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -8° / 18° | 92 mm |
| February | -6° / 21° | 95 mm |
| March | -1° / 31° | 99 mm |
| April | 6° / 42° | 109 mm |
| May | 12° / 54° | 109 mm |
| June | 18° / 64° | 103 mm |
| July | 20° / 68° | 103 mm |
| August | 19° / 66° | 105 mm |
| September | 14° / 58° | 91 mm |
| October | 8° / 47° | 108 mm |
| November | 2° / 36° | 129 mm |
| December | -4° / 24° | 117 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Carroll County, NH
The most comfortable months to visit Carroll County, NH are typically July, August and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 27°C high). The coldest is January (near -14°C low). November is usually the wettest month.
Where to stay near Carroll County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.