Data / Rankings / Population aged 18 to 64 / Counties in New Hampshire

Counties in New Hampshire by population aged 18 to 64

Strafford County had the highest population aged 18 to 64 of 10 counties in 2022, at 64.6%. Carroll County had the lowest, at 53.5%. The median was 60% and the figure for New Hampshire was 61.1%. Source: the U.S. Census Bureau.

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Highest64.6Strafford County
Lowest53.5Carroll County
Median6010 counties
New Hampshire61.1History

Map of counties, 2022

Belknap County: 57.6 %Carroll County: 53.5 %Cheshire County: 59.3 %Coos County: 57.6 %Grafton County: 61.2 %Hillsborough County: 62.7 %Merrimack County: 60.8 %Rockingham County: 60.7 %Strafford County: 64.6 %Sullivan County: 58.4 %
  • Under 58
  • 58 to 59
  • 59 to 61
  • 61 and over
%, 2022. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2022

Strafford County: 64.6 %Strafford County64.6Hillsborough County: 62.7 %Hillsborough County62.7Grafton County: 61.2 %Grafton County61.2Merrimack County: 60.8 %Merrimack County60.8Rockingham County: 60.7 %Rockingham County60.7Cheshire County: 59.3 %Cheshire County59.3Sullivan County: 58.4 %Sullivan County58.4Coos County: 57.6 %Coos County57.6Belknap County: 57.6 %Belknap County57.6Carroll County: 53.5 %Carroll County53.5Strafford County: 64.6 %Strafford County64.6Hillsborough County: 62.7 %Hillsborough County62.7Grafton County: 61.2 %Grafton County61.2Merrimack County: 60.8 %Merrimack County60.8Rockingham County: 60.7 %Rockingham County60.7Cheshire County: 59.3 %Cheshire County59.3Sullivan County: 58.4 %Sullivan County58.4Coos County: 57.6 %Coos County57.6Belknap County: 57.6 %Belknap County57.6Carroll County: 53.5 %Carroll County53.5
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2022 (%)Change on 2021
1Strafford County64.6-0.4 pts
2Hillsborough County62.7-0.4 pts
3Grafton County61.2+0.2 pts
4Merrimack County60.8-0.5 pts
5Rockingham County60.7-0.6 pts
6Cheshire County59.3-0.4 pts
7Sullivan County58.4-0.4 pts
8Coos County57.6-0.1 pts
9Belknap County57.6-0.5 pts
10Carroll County53.5-0.9 pts

Other periods

About this ranking

Residents aged 18 to 64 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.

Not comparable with working-age shares for ages 15 to 64 used in EU and World Bank statistics.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (Counties in New Hampshire by population aged 18 to 64, 2022) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in New Hampshire by population aged 18 to 64, 2022. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/population-18-64/new-hampshire-counties?period=2022. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Counties in New Hampshire by population aged 18 to 64, 2022. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/population-18-64/new-hampshire-counties?period=2022.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in New Hampshire by population aged 18 to 64, 2022 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-18-64/new-hampshire-counties?period=2022 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_new_hampshire_2022,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in New Hampshire by population aged 18 to 64, 2022}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/population-18-64/new-hampshire-counties?period=2022. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
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AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in New Hampshire by population aged 18 to 64, 2022
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/population-18-64/new-hampshire-counties?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/new-hampshire-counties?period=2022.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -
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Rank Counties in New Hampshire by population aged 18 to 64 using official data, and cite the source.
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Questions

Which county has the highest population aged 18 to 64?

Strafford County, with 64.6% in 2022, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Carroll County, with 53.5% in 2022.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Retrieved 2026-10-12.

Population aged 18 to 64: other rankings

Counties in New Hampshire: more rankings