Data / Rankings / Net international migration, July to June / Counties in New Hampshire

Counties in New Hampshire by net international migration, July to June

Hillsborough County had the highest net international migration, July to June of 10 counties in 2021, at 850. Coos County had the lowest, at 9. The median was 75 and the figure for New Hampshire was 1,542. Source: the U.S. Census Bureau.

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Highest850Hillsborough County
Lowest9Coos County
Median7510 counties
New Hampshire1,542History

Map of counties, 2021

Belknap County: 19 personsCarroll County: 15 personsCheshire County: 31 personsCoos County: 9 personsGrafton County: 157 personsHillsborough County: 850 personsMerrimack County: 152 personsRockingham County: 173 personsStrafford County: 119 personsSullivan County: 17 persons
  • Under 17
  • 17 to 26
  • 26 to 130
  • 130 to 160
  • 160 and over
persons, 2021. Source: U.S. Census Bureau, Population Estimates Program: net international migration, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Hillsborough County: 850 personsHillsborough County850Rockingham County: 173 personsRockingham County173Grafton County: 157 personsGrafton County157Merrimack County: 152 personsMerrimack County152Strafford County: 119 personsStrafford County119Cheshire County: 31 personsCheshire County31Belknap County: 19 personsBelknap County19Sullivan County: 17 personsSullivan County17Carroll County: 15 personsCarroll County15Coos County: 9 personsCoos County9Hillsborough County: 850 personsHillsborough County850Rockingham County: 173 personsRockingham County173Grafton County: 157 personsGrafton County157Merrimack County: 152 personsMerrimack County152Strafford County: 119 personsStrafford County119Cheshire County: 31 personsCheshire County31Belknap County: 19 personsBelknap County19Sullivan County: 17 personsSullivan County17Carroll County: 15 personsCarroll County15Coos County: 9 personsCoos County9
persons. Source: U.S. Census Bureau, Population Estimates Program: net international migration, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Retrieved 2026-10-12.

Full ranking

RankCounties2021
persons		Change on 2020
1Hillsborough County Estimated850-26.9%
2Rockingham County Estimated173-12.2%
3Grafton County Estimated157-28%
4Merrimack County Estimated152-52.1%
5Strafford County Estimated119-60.2%
6Cheshire County Estimated31-44.6%
7Belknap County Estimated19-36.7%
8Sullivan County Estimated17+142.9%
9Carroll County Estimated15-16.7%
10Coos County Estimated90%

Other periods

About this ranking

Estimated moves into the area from abroad minus moves out of the area to other countries, from July 1 of the previous year through June 30 of the reported year.

More on how it is measured
  • United States: Census Bureau estimates, including people born in the United States and abroad, moves between the states and Puerto Rico, and net movement of the Armed Forces overseas.
  • Canada: Statistics Canada immigrants, minus net emigration, plus the net change in non-permanent residents.
  • Australia: ABS net overseas migration for the financial year.
  • United Kingdom local authorities: Office for National Statistics mid-year estimates, counting people who move for at least 12 months.

A component of each country's official population estimates. Methods differ between the statistical offices, so compare places within a country first. Differs from the World Bank net_migration series, which uses calendar years and a different method.

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: net international migration, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. 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: net international migration, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021 (Counties in New Hampshire by net international migration, July to June, 2021) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program: net international migration, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021, Counties in New Hampshire by net international migration, July to June, 2021. U.S. Census Bureau, 26 Mar. 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/net-international-migration-july-june/new-hampshire-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program: net international migration, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Counties in New Hampshire by net international migration, July to June, 2021. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/net-international-migration-july-june/new-hampshire-counties?period=2021.

Harvard

U.S. Census Bureau (2026) Population Estimates Program: net international migration, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021, Counties in New Hampshire by net international migration, July to June, 2021 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/net-international-migration-july-june/new-hampshire-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_new_hampshire_2021,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program: net international migration, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021: Counties in New Hampshire by net international migration, July to June, 2021}},
  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/net-international-migration-july-june/new-hampshire-counties?period=2021. Publisher attribution: U.S. Census Bureau. Population Estimates Program: net international migration, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program: net international migration, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021: Counties in New Hampshire by net international migration, July to June, 2021
PY  - 2026
DA  - 2026/03/26
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/net-international-migration-july-june/new-hampshire-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/net-international-migration-july-june/new-hampshire-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program: net international migration, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. 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 net international migration, July to June using official data, and cite the source.
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Questions

Which county has the highest net international migration, July to June?

Hillsborough County, with 850 in 2021, according to the U.S. Census Bureau.

Which county has the lowest net international migration, July to June?

Coos County, with 9 in 2021.

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: net international migration, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Retrieved 2026-10-12.

Net international migration, July to June: other rankings

Counties in New Hampshire: more rankings