Counties in Montana by net domestic migration rate, July to June
Broadwater County had the highest net domestic migration rate, July to June of 56 counties in 2020, at 38.43 per 1,000 inhabitants. Blaine County had the lowest, at -25.77 per 1,000 inhabitants. The median was 0.15 per 1,000 inhabitants and the figure for Montana was 8.33 per 1,000 inhabitants. Source: the U.S. Census Bureau.
All counties, 2020
Full ranking
| Rank | Counties | 2020 | Change on 2019 |
|---|---|---|---|
| 1 | Broadwater County Estimated | 38.43 | +16.05 pts |
| 2 | Mineral County Estimated | 31.23 | +5.13 pts |
| 3 | Wheatland County Estimated | 26.77 | +57.72 pts |
| 4 | Madison County Estimated | 21.91 | +7.03 pts |
| 5 | Sanders County Estimated | 21.74 | +2.07 pts |
| 6 | Ravalli County Estimated | 21.69 | +2.27 pts |
| 7 | Stillwater County Estimated | 21.17 | +4.05 pts |
| 8 | Carbon County Estimated | 20.63 | +16.79 pts |
| 9 | Jefferson County Estimated | 17.99 | +5.48 pts |
| 10 | Flathead County Estimated | 17.57 | +2.48 pts |
| 11 | Lincoln County Estimated | 17.41 | +1.59 pts |
| 12 | Musselshell County Estimated | 15.28 | +8.79 pts |
| 13 | Lake County Estimated | 14.78 | +6.84 pts |
| 14 | Gallatin County Estimated | 14.39 | -1.68 pts |
| 15 | Petroleum County Estimated | 14.04 | +49.55 pts |
| 16 | Teton County Estimated | 13.23 | +12.09 pts |
| 17 | Missoula County Estimated | 10.28 | +4.85 pts |
| 18 | Park County Estimated | 10.13 | +13.55 pts |
| 19 | Fergus County Estimated | 8.76 | +13.19 pts |
| 20 | Silver Bow County Estimated | 8.59 | +4.89 pts |
| 21 | Lewis and Clark County Estimated | 8.53 | -1.55 pts |
| 22 | Yellowstone County Estimated | 8.13 | +2.96 pts |
| 23 | Chouteau County Estimated | 6.33 | +19.26 pts |
| 24 | Deer Lodge County Estimated | 5.97 | -2.85 pts |
| 25 | Richland County Estimated | 3.27 | +10.12 pts |
| 26 | Beaverhead County Estimated | 2.64 | -3.08 pts |
| 27 | McCone County Estimated | 1.82 | +7.87 pts |
| 28 | Powell County Estimated | 0.29 | +7.84 pts |
| 29 | Granite County Estimated | 0 | +1.2 pts |
| 30 | Custer County Estimated | -2.3 | +15.32 pts |
| 31 | Daniels County Estimated | -3.05 | +32.16 pts |
| 32 | Cascade County Estimated | -3.27 | +4.17 pts |
| 33 | Golden Valley County Estimated | -3.63 | -4.84 pts |
| 34 | Powder River County Estimated | -5.34 | +18.65 pts |
| 35 | Sweet Grass County Estimated | -5.4 | -11.34 pts |
| 36 | Meagher County Estimated | -5.45 | -0.57 pts |
| 37 | Garfield County Estimated | -5.51 | -6.3 pts |
| 38 | Toole County Estimated | -5.96 | +20.46 pts |
| 39 | Prairie County Estimated | -6.57 | -8.46 pts |
| 40 | Judith Basin County Estimated | -7.49 | -36.79 pts |
| 41 | Liberty County Estimated | -7.99 | +20.19 pts |
| 42 | Valley County Estimated | -8.14 | -3.54 pts |
| 43 | Phillips County Estimated | -8.64 | +14.86 pts |
| 44 | Roosevelt County Estimated | -8.82 | +2.85 pts |
| 45 | Dawson County Estimated | -9.77 | -2.38 pts |
| 46 | Glacier County Estimated | -12.24 | +1.36 pts |
| 47 | Carter County Estimated | -12.9 | -24.25 pts |
| 48 | Pondera County Estimated | -13.23 | -0.51 pts |
| 49 | Sheridan County Estimated | -13.38 | +5.44 pts |
| 50 | Wibaux County Estimated | -13.73 | +54.85 pts |
| 51 | Rosebud County Estimated | -15.74 | +0.7 pts |
| 52 | Hill County Estimated | -15.95 | -17.11 pts |
| 53 | Fallon County Estimated | -18.58 | +1.41 pts |
| 54 | Big Horn County Estimated | -19.69 | -7.86 pts |
| 55 | Treasure County Estimated | -22.99 | -52.31 pts |
| 56 | Blaine County Estimated | -25.77 | -9.14 pts |
Other periods
About this ranking
Net domestic migration into a US state or county 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.
Sums to zero for the United States 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 rate per 1,000 residents, 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
APA 7
U.S. Census Bureau. (2026). Population Estimates Program: net domestic migration rate per 1,000 residents, 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 Montana by net domestic migration rate, 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 rate per 1,000 residents, 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 Montana by net domestic migration rate, 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-rate-july-june/montana-counties?period=2020. Accessed 12 Oct. 2026.
Chicago (author-date)
U.S. Census Bureau. 2026. Population Estimates Program: net domestic migration rate per 1,000 residents, 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 Montana by net domestic migration rate, 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-rate-july-june/montana-counties?period=2020.
Harvard
U.S. Census Bureau (2026) Population Estimates Program: net domestic migration rate per 1,000 residents, 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 Montana by net domestic migration rate, 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-rate-july-june/montana-counties?period=2020 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_montana_by_2020,
author = {{U.S. Census Bureau}},
title = {{Population Estimates Program: net domestic migration rate per 1,000 residents, 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 Montana by net domestic migration rate, 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-rate-july-june/montana-counties?period=2020. Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration rate per 1,000 residents, 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 rate per 1,000 residents, 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 Montana by net domestic migration rate, 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-rate-july-june/montana-counties?period=2020
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/net-domestic-migration-rate-july-june/montana-counties?period=2020.
N1 - Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration rate per 1,000 residents, 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 -
Use this data in your AI agent
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Rank Counties in Montana by net domestic migration rate, July to June using official data, and cite the source.
rank_places {"indicator":"net_domestic_migration_rate_july_june","level":"province","within":"Montana","limit":10}
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Which county has the highest net domestic migration rate, July to June?
Broadwater County, with 38.43 per 1,000 inhabitants in 2020, according to the U.S. Census Bureau.
Which county has the lowest net domestic migration rate, July to June?
Blaine County, with -25.77 per 1,000 inhabitants 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 rate per 1,000 residents, 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.