Data / Rankings / Net domestic migration, July to June / Counties in Maine

Counties in Maine by net domestic migration, July to June

Cumberland County had the highest net domestic migration, July to June of 16 counties in 2020, at 1,531. Aroostook County had the lowest, at -16. The median was 234 and the figure for Maine was 6,114. Source: the U.S. Census Bureau.

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Highest1,531Cumberland County
Lowest-16Aroostook County
Median23416 counties
Maine6,114History

Map of counties, 2020

Androscoggin County: -10 personsAroostook County: -16 personsCumberland County: 1,531 personsFranklin County: 67 personsHancock County: 232 personsKennebec County: 1,007 personsKnox County: 319 personsLincoln County: 236 personsOxford County: 530 personsPenobscot County: 83 personsPiscataquis County: 118 personsSagadahoc County: 123 personsSomerset County: 16 personsWaldo County: 282 personsWashington County: 264 personsYork County: 1,332 persons
  • Under -10
  • -10 to 0
  • 0 to 160
  • 160 to 310
  • 310 and over
persons, 2020. Red areas are below zero and blue areas above it. Source: U.S. Census Bureau, Population Estimates Program: net domestic migration, states and counties, 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, 2020

Cumberland County: 1,531 personsCumberland County1,531York County: 1,332 personsYork County1,332Kennebec County: 1,007 personsKennebec County1,007Oxford County: 530 personsOxford County530Knox County: 319 personsKnox County319Waldo County: 282 personsWaldo County282Washington County: 264 personsWashington County264Lincoln County: 236 personsLincoln County236Hancock County: 232 personsHancock County232Sagadahoc County: 123 personsSagadahoc County123Piscataquis County: 118 personsPiscataquis County118Penobscot County: 83 personsPenobscot County83Franklin County: 67 personsFranklin County67Somerset County: 16 personsSomerset County16Androscoggin County: -10 personsAndroscoggin County-10Aroostook County: -16 personsAroostook County-16Cumberland County: 1,531 personsCumberland County1,531York County: 1,332 personsYork County1,332Kennebec County: 1,007 personsKennebec County1,007Oxford County: 530 personsOxford County530Knox County: 319 personsKnox County319Waldo County: 282 personsWaldo County282Washington County: 264 personsWashington County264Lincoln County: 236 personsLincoln County236Hancock County: 232 personsHancock County232Sagadahoc County: 123 personsSagadahoc County123Piscataquis County: 118 personsPiscataquis County118Penobscot County: 83 personsPenobscot County83Franklin County: 67 personsFranklin County67Somerset County: 16 personsSomerset County16Androscoggin County: -10 personsAndroscoggin County-10Aroostook County: -16 personsAroostook County-16
persons. Source: U.S. Census Bureau, Population Estimates Program: net domestic migration, states and counties, 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

RankCounties2020
persons		Change on 2019
1Cumberland County Estimated1,531+88.8%
2York County Estimated1,332-33.4%
3Kennebec County Estimated1,007+236.8%
4Oxford County Estimated530+48.9%
5Knox County Estimated319+72.4%
6Waldo County Estimated282+139%
7Washington County Estimated264+59%
8Lincoln County Estimated236-39.6%
9Hancock County Estimated232-42.3%
10Sagadahoc County Estimated123-60.2%
11Piscataquis County Estimated118-4.1%
12Penobscot County Estimated83-50%
13Franklin County Estimated67-79.2%
14Somerset County Estimated16-93.1%
15Androscoggin County Estimated-10-119.2%
16Aroostook County Estimated-16+51.5%

Other periods

About this ranking

Estimated moves into an area from elsewhere in the same country minus moves out to the rest of the country, from July 1 of the previous year through June 30 of the reported year.

More on how it is measured
  • United States: states and counties.
  • Canada: provinces and territories, net interprovincial migration (Statistics Canada).
  • United Kingdom: local authorities, counting moves between any two UK local authorities, including across the borders of England, Wales, Scotland and Northern Ireland (ONS internal migration).
  • A negative value means more people left than arrived.

Sums to zero, or close to it, for each country as a whole, so there is no national value.

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 domestic migration, states and counties, 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 domestic migration, states and counties, 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 Maine by net domestic migration, July to June, 2020) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program: net domestic migration, states and counties, 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 Maine by net domestic migration, July to June, 2020. U.S. Census Bureau, 26 Mar. 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/maine-counties?period=2020. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program: net domestic migration, states and counties, 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 Maine by net domestic migration, July to June, 2020. 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-domestic-migration-july-june/maine-counties?period=2020.

Harvard

U.S. Census Bureau (2026) Population Estimates Program: net domestic migration, states and counties, 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 Maine by net domestic migration, July to June, 2020 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/net-domestic-migration-july-june/maine-counties?period=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_maine_by_2020,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program: net domestic migration, states and counties, 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 Maine by net domestic migration, July to June, 2020}},
  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-domestic-migration-july-june/maine-counties?period=2020. Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration, states and counties, 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 domestic migration, states and counties, 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 Maine by net domestic migration, July to June, 2020
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-domestic-migration-july-june/maine-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/maine-counties?period=2020.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration, states and counties, 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 Maine by net domestic migration, July to June using official data, and cite the source.
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Questions

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

Cumberland County, with 1,531 in 2020, according to the U.S. Census Bureau.

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

Aroostook County, with -16 in 2020.

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 domestic migration, states and counties, 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 domestic migration, July to June: other rankings

Counties in Maine: more rankings