Data / Net domestic migration, July to June / Lewis and Clark County

Net domestic migration, July to June in Lewis and Clark County

Net domestic migration, July to June in Lewis and Clark County was 265 in 2025, according to the U.S. Census Bureau. That is down 7.7% from 2024. That is the 9th highest of 56 counties in 2025.

2025, persons265 Estimated
Change on 2024-7.7%
Rank9th of 56Counties in Montana ranked
Series high1,3812021
Series low1852013

Next release: Friday, 26 March 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

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Net domestic migration, July to June in Lewis and Clark County, 2011 to 2025

02505007501,0001,2501,500201120142017202020252011: 432 persons2012: 260 persons2013: 185 persons2014: 286 persons2015: 357 persons2016: 462 persons2017: 814 persons2018: 638 persons2019: 697 persons2020: 596 persons2021: 1,381 persons2022: 1,210 persons2023: 1,143 persons2024: 287 persons2025: 265 persons05001,0001,50020112016202120252011: 432 persons2012: 260 persons2013: 185 persons2014: 286 persons2015: 357 persons2016: 462 persons2017: 814 persons2018: 638 persons2019: 697 persons2020: 596 persons2021: 1,381 persons2022: 1,210 persons2023: 1,143 persons2024: 287 persons2025: 265 persons
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, published 2026-03-26.
All 15 values
Periodpersons
2025265 Estimated
2024287 Estimated
20231,143 Estimated
20221,210 Estimated
20211,381 Estimated
2020596 Estimated
2019697 Estimated
2018638 Estimated
2017814 Estimated
2016462 Estimated
2015357 Estimated
2014286 Estimated
2013185 Estimated
2012260 Estimated
2011432 Estimated

Compared with Montana

Place2025
Lewis and Clark County265
Montana6,348

Lewis and Clark County compared with nearby places

Beaverhead County: 81 personsBig Horn County: -147 personsBlaine County: -19 personsBroadwater County: 214 personsCarbon County: -47 personsCarter County: -37 personsCascade County: 346 personsChouteau County: 36 personsCuster County: 49 personsDaniels County: -29 personsDawson County: -39 personsDeer Lodge County: -20 personsFallon County: -15 personsFergus County: 5 personsFlathead County: 914 personsGallatin County: 545 personsGarfield County: -25 personsGlacier County: -49 personsGolden Valley County: 5 personsGranite County: 26 personsHill County: -1 personsJefferson County: 156 personsJudith Basin County: 44 personsLake County: 90 personsLewis and Clark County: 265 personsLiberty County: 3 personsLincoln County: 313 personsMcCone County: -3 personsMadison County: 283 personsMeagher County: 44 personsMineral County: 23 personsMissoula County: 765 personsMusselshell County: 144 personsPark County: 57 personsPetroleum County: 7 personsPhillips County: 17 personsPondera County: 24 personsPowder River County: 17 personsPowell County: 74 personsPrairie County: 10 personsRavalli County: 663 personsRichland County: 259 personsRoosevelt County: -1 personsRosebud County: -40 personsSanders County: 210 personsSheridan County: -32 personsSilver Bow County: 159 personsStillwater County: 22 personsSweet Grass County: -57 personsTeton County: 65 personsToole County: 47 personsTreasure County: -3 personsValley County: 33 personsWheatland County: 39 personsWibaux County: -10 personsYellowstone County: 868 persons
  • Under -40
  • -40 to -20
  • -20 to 0
  • 0 to 40
  • 40 to 160
  • 160 and over
Net domestic migration, July to June, 2025, persons. Lewis and Clark County is outlined. Same source and period for every area shown. Source: U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Rankings

Definition

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. United States: states and counties.

More on how it is measured
  • 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.

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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 (Net domestic migration, July to June, Lewis and Clark County, 2011 to 2025) [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, Net domestic migration, July to June, Lewis and Clark County, 2011 to 2025. U.S. Census Bureau, 26 Mar. 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/en/net-domestic-migration-july-june/lewis-and-clark-county-montana. 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. Net domestic migration, July to June, Lewis and Clark County, 2011 to 2025. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/en/net-domestic-migration-july-june/lewis-and-clark-county-montana.

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, Net domestic migration, July to June, Lewis and Clark County, 2011 to 2025 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/en/net-domestic-migration-july-june/lewis-and-clark-county-montana (Accessed: 12 October 2026).

BibTeX
@misc{census_net_domestic_migration_july_2025,
  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: Net domestic migration, July to June, Lewis and Clark County, 2011 to 2025}},
  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/en/net-domestic-migration-july-june/lewis-and-clark-county-montana. 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: Net domestic migration, July to June, Lewis and Clark County, 2011 to 2025
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/en/net-domestic-migration-july-june/lewis-and-clark-county-montana
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/net-domestic-migration-july-june/lewis-and-clark-county-montana.
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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Questions

What is the net domestic migration, July to June in Lewis and Clark County?

Net domestic migration, July to June in Lewis and Clark County was 265 in 2025, according to the U.S. Census Bureau. That is down 7.7% from 2024. That is the 9th highest of 56 counties in 2025.

Where does this figure come from?

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 by Invokely on 2026-10-12.

What was the highest net domestic migration, July to June in Lewis and Clark County?

1,381 in 2021, the highest value since 2011 in this series.

Related statistics for Lewis and Clark County

All statistics for Lewis and Clark County | Lewis and Clark County in figures