Counties in Montana by net domestic migration, July to June

Gallatin County had the highest net domestic migration, July to June of 56 counties in 2017, at 2,983. Richland County had the lowest, at -431. The median was 2 and the figure for Montana was 8,712. Source: the U.S. Census Bureau.

Highest2,983Gallatin County
Lowest-431Richland County
Median256 counties
Montana8,712History

All counties, 2017

Gallatin County: 2,983 personsGallatin County2,983Flathead County: 1,998 personsFlathead County1,998Missoula County: 1,084 personsMissoula County1,084Yellowstone County: 818 personsYellowstone County818Lewis and Clark County: 814 personsLewis and Clark County814Ravalli County: 762 personsRavalli County762Lake County: 474 personsLake County474Lincoln County: 303 personsLincoln County303Park County: 263 personsPark County263Sanders County: 258 personsSanders County258Madison County: 213 personsMadison County213Carbon County: 212 personsCarbon County212Broadwater County: 153 personsBroadwater County153Jefferson County: 140 personsJefferson County140Mineral County: 140 personsMineral County140Silver Bow County: 88 personsSilver Bow County88Deer Lodge County: 87 personsDeer Lodge County87Granite County: 77 personsGranite County77Sweet Grass County: 59 personsSweet Grass County59Teton County: 56 personsTeton County56Stillwater County: 50 personsStillwater County50Carter County: 45 personsCarter County45Petroleum County: 24 personsPetroleum County24Wheatland County: 20 personsWheatland County20Meagher County: 9 personsMeagher County9Musselshell County: 7 personsMusselshell County7Golden Valley County: 6 personsGolden Valley County6Judith Basin County: 4 personsJudith Basin County4Daniels County: -1 personsDaniels County-1Fergus County: -1 personsFergus County-1Powder River County: -4 personsPowder River County-4Blaine County: -10 personsBlaine County-10Treasure County: -10 personsTreasure County-10Phillips County: -12 personsPhillips County-12Liberty County: -13 personsLiberty County-13Beaverhead County: -21 personsBeaverhead County-21Garfield County: -22 personsGarfield County-22Powell County: -23 personsPowell County-23Wibaux County: -23 personsWibaux County-23McCone County: -26 personsMcCone County-26Chouteau County: -35 personsChouteau County-35Prairie County: -57 personsPrairie County-57Rosebud County: -85 personsRosebud County-85Pondera County: -87 personsPondera County-87Fallon County: -96 personsFallon County-96Toole County: -96 personsToole County-96Glacier County: -108 personsGlacier County-108Custer County: -112 personsCuster County-112Cascade County: -120 personsCascade County-120Big Horn County: -130 personsBig Horn County-130Sheridan County: -133 personsSheridan County-133Valley County: -133 personsValley County-133Hill County: -142 personsHill County-142Roosevelt County: -187 personsRoosevelt County-187Dawson County: -317 personsDawson County-317Richland County: -431 personsRichland County-431
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

RankCounties2017
persons
Change on 2016
1Gallatin County Estimated2,983+1.8%
2Flathead County Estimated1,998+18.8%
3Missoula County Estimated1,084-34.4%
4Yellowstone County Estimated818-1.9%
5Lewis and Clark County Estimated814+76.2%
6Ravalli County Estimated762-7.6%
7Lake County Estimated474+125.7%
8Lincoln County Estimated303+0.7%
9Park County Estimated263+122.9%
10Sanders County Estimated258+24%
11Madison County Estimated213+261%
12Carbon County Estimated212+58.2%
13Broadwater County Estimated153+93.7%
14Jefferson County Estimated140-28.6%
14Mineral County Estimated140+374.5%
16Silver Bow County Estimated88+257.1%
17Deer Lodge County Estimated87+1,640%
18Granite County Estimated77-40.3%
19Sweet Grass County Estimated59+1,866.7%
20Teton County Estimated56+178.9%
21Stillwater County Estimated50+194.3%
22Carter County Estimated45+73.1%
23Petroleum County Estimated24+20%
24Wheatland County Estimated20+11.1%
25Meagher County Estimated9-50%
26Musselshell County Estimated7-70.8%
27Golden Valley County Estimated6+185.7%
28Judith Basin County Estimated4-50%
29Daniels County Estimated-1+93.8%
29Fergus County Estimated-1-102%
31Powder River County Estimated-4+77.8%
32Blaine County Estimated-10+56.5%
32Treasure County Estimated-10-400%
34Phillips County Estimated-12+75%
35Liberty County Estimated-13-168.4%
36Beaverhead County Estimated-21-114.8%
37Garfield County Estimated-22-320%
38Powell County Estimated-23-133.3%
38Wibaux County Estimated-23-9.5%
40McCone County Estimated-26-183.9%
41Chouteau County Estimated-35-3,600%
42Prairie County Estimated-57-290%
43Rosebud County Estimated-85+53.6%
44Pondera County Estimated-87-13%
45Fallon County Estimated-960%
45Toole County Estimated-96+25%
47Glacier County Estimated-108-217.6%
48Custer County Estimated-112+56.8%
49Cascade County Estimated-120+80.9%
50Big Horn County Estimated-130-2,266.7%
51Sheridan County Estimated-133-146.3%
51Valley County Estimated-133-31.7%
53Hill County Estimated-142-0.7%
54Roosevelt County Estimated-187+41.2%
55Dawson County Estimated-317+6.2%
56Richland County Estimated-431+23.7%

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. 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 Montana by net domestic migration, July to June, 2017) [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 Montana by net domestic migration, July to June, 2017. 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/montana-counties?period=2017. 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 Montana by net domestic migration, July to June, 2017. 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/montana-counties?period=2017.

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 Montana by net domestic migration, July to June, 2017 [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/montana-counties?period=2017 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_montana_by_2017,
  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 Montana by net domestic migration, July to June, 2017}},
  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/montana-counties?period=2017. 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 Montana by net domestic migration, July to June, 2017
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/montana-counties?period=2017
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/montana-counties?period=2017.
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

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

Gallatin County, with 2,983 in 2017, according to the U.S. Census Bureau.

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

Richland County, with -431 in 2017.

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 Montana: more rankings