Counties in Montana by net international migration rate, July to June
Sweet Grass County had the highest net international migration rate, July to June of 56 counties in 2023, at 4.79 per 1,000 inhabitants. Musselshell County had the lowest, at -0.57 per 1,000 inhabitants. The median was 0 per 1,000 inhabitants and the figure for Montana was 0.37 per 1,000 inhabitants. Source: the U.S. Census Bureau.
All counties, 2023
Full ranking
| Rank | Counties | 2023 | Change on 2022 |
|---|---|---|---|
| 1 | Sweet Grass County Estimated | 4.79 | +4.79 pts |
| 2 | Rosebud County Estimated | 1.6 | -1.24 pts |
| 3 | Gallatin County Estimated | 1.4 | -0.13 pts |
| 4 | Big Horn County Estimated | 1.24 | -1.47 pts |
| 5 | Fergus County Estimated | 1.02 | +0.94 pts |
| 6 | Madison County Estimated | 0.85 | -1.46 pts |
| 7 | Richland County Estimated | 0.81 | -1.68 pts |
| 8 | Toole County Estimated | 0.59 | -2.2 pts |
| 9 | Beaverhead County Estimated | 0.51 | +0.3 pts |
| 10 | Missoula County Estimated | 0.5 | -0.4 pts |
| 11 | Judith Basin County Estimated | 0.48 | -1.46 pts |
| 12 | Park County Estimated | 0.45 | +0.11 pts |
| 13 | Valley County Estimated | 0.4 | -0.79 pts |
| 14 | Chouteau County Estimated | 0.34 | -0.17 pts |
| 15 | Silver Bow County Estimated | 0.33 | -1.35 pts |
| 16 | Yellowstone County Estimated | 0.31 | -0.2 pts |
| 17 | Lewis and Clark County Estimated | 0.3 | -0.39 pts |
| 18 | Roosevelt County Estimated | 0.19 | -0.18 pts |
| 19 | Pondera County Estimated | 0.16 | -0.83 pts |
| 20 | Dawson County Estimated | 0.11 | -0.23 pts |
| 21 | Cascade County Estimated | 0.08 | +0.19 pts |
| 22 | Ravalli County Estimated | 0.06 | -0.26 pts |
| 23 | Broadwater County Estimated | 0 | -0.26 pts |
| 23 | Carter County Estimated | 0 | 0 pts |
| 23 | Daniels County Estimated | 0 | 0 pts |
| 23 | Garfield County Estimated | 0 | 0 pts |
| 23 | Golden Valley County Estimated | 0 | 0 pts |
| 23 | Granite County Estimated | 0 | 0 pts |
| 23 | Jefferson County Estimated | 0 | -1.82 pts |
| 23 | McCone County Estimated | 0 | 0 pts |
| 23 | Meagher County Estimated | 0 | 0 pts |
| 23 | Petroleum County Estimated | 0 | 0 pts |
| 23 | Phillips County Estimated | 0 | 0 pts |
| 23 | Powder River County Estimated | 0 | 0 pts |
| 23 | Powell County Estimated | 0 | +0.14 pts |
| 23 | Prairie County Estimated | 0 | -2.71 pts |
| 23 | Sanders County Estimated | 0 | -0.15 pts |
| 23 | Sheridan County Estimated | 0 | -0.28 pts |
| 23 | Teton County Estimated | 0 | -0.16 pts |
| 23 | Treasure County Estimated | 0 | 0 pts |
| 23 | Wheatland County Estimated | 0 | 0 pts |
| 23 | Wibaux County Estimated | 0 | 0 pts |
| 43 | Flathead County Estimated | -0.01 | -0.82 pts |
| 44 | Lake County Estimated | -0.03 | -0.12 pts |
| 45 | Custer County Estimated | -0.08 | 0 pts |
| 46 | Carbon County Estimated | -0.09 | -1.17 pts |
| 47 | Deer Lodge County Estimated | -0.1 | -0.73 pts |
| 48 | Stillwater County Estimated | -0.11 | +0.11 pts |
| 49 | Blaine County Estimated | -0.14 | -0.14 pts |
| 50 | Glacier County Estimated | -0.15 | -0.22 pts |
| 51 | Lincoln County Estimated | -0.18 | -0.52 pts |
| 52 | Hill County Estimated | -0.19 | -0 pts |
| 53 | Mineral County Estimated | -0.2 | -0.4 pts |
| 54 | Fallon County Estimated | -0.33 | -0 pts |
| 55 | Liberty County Estimated | -0.51 | +0.52 pts |
| 56 | Musselshell County Estimated | -0.57 | -0.37 pts |
Other periods
About this ranking
Net international migration from July 1 of the previous year through June 30 of the reported year per 1,000 residents, using the average of the population estimates at the two July 1 endpoints.
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 rate per 1,000 residents, 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
APA 7
U.S. Census Bureau. (2026). Population Estimates Program: net international migration rate per 1,000 residents, 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 Montana by net international migration rate, July to June, 2023) [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 rate per 1,000 residents, 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 Montana by net international migration rate, July to June, 2023. 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-rate-july-june/montana-counties?period=2023. Accessed 12 Oct. 2026.
Chicago (author-date)
U.S. Census Bureau. 2026. Population Estimates Program: net international migration rate per 1,000 residents, 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 Montana by net international migration rate, July to June, 2023. 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-rate-july-june/montana-counties?period=2023.
Harvard
U.S. Census Bureau (2026) Population Estimates Program: net international migration rate per 1,000 residents, 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 Montana by net international migration rate, July to June, 2023 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/net-international-migration-rate-july-june/montana-counties?period=2023 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_montana_by_2023,
author = {{U.S. Census Bureau}},
title = {{Population Estimates Program: net international migration rate per 1,000 residents, 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 Montana by net international migration rate, July to June, 2023}},
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-rate-july-june/montana-counties?period=2023. Publisher attribution: U.S. Census Bureau. Population Estimates Program: net international migration rate per 1,000 residents, 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 rate per 1,000 residents, 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 Montana by net international migration rate, July to June, 2023
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-rate-july-june/montana-counties?period=2023
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/net-international-migration-rate-july-june/montana-counties?period=2023.
N1 - Publisher attribution: U.S. Census Bureau. Population Estimates Program: net international migration rate per 1,000 residents, 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 -
Use this data in your AI agent
Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:
Rank Counties in Montana by net international migration rate, July to June using official data, and cite the source.
rank_places {"indicator":"net_international_migration_rate_july_june","level":"province","within":"Montana","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=net_international_migration_rate_july_june&level=province&within=Montana&limit=10Questions
Which county has the highest net international migration rate, July to June?
Sweet Grass County, with 4.79 per 1,000 inhabitants in 2023, according to the U.S. Census Bureau.
Which county has the lowest net international migration rate, July to June?
Musselshell County, with -0.57 per 1,000 inhabitants in 2023.
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 rate per 1,000 residents, 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.