Counties in Idaho by net domestic migration, July to June
Ada County had the highest net domestic migration, July to June of 44 counties in 2018, at 10,391. Madison County had the lowest, at -1,050. The median was 79 and the figure for Idaho was 24,401. Source: the U.S. Census Bureau.
Map of counties, 2018
- Under -100
- -100 to 0
- 0 to 100
- 100 to 300
- 300 and over
All counties, 2018
Full ranking
| Rank | Counties | 2018 | Change on 2017 |
|---|---|---|---|
| 1 | Ada County Estimated | 10,391 | +9.1% |
| 2 | Canyon County Estimated | 5,191 | +34.3% |
| 3 | Kootenai County Estimated | 3,534 | -12% |
| 4 | Bonneville County Estimated | 1,144 | -17.2% |
| 5 | Bonner County Estimated | 1,044 | -17.2% |
| 6 | Bannock County Estimated | 755 | +843.8% |
| 7 | Jefferson County Estimated | 666 | +112.8% |
| 8 | Valley County Estimated | 329 | +26.5% |
| 9 | Payette County Estimated | 307 | +38.9% |
| 10 | Boise County Estimated | 305 | +17.3% |
| 11 | Shoshone County Estimated | 292 | +105.6% |
| 12 | Gem County Estimated | 291 | -19.4% |
| 13 | Twin Falls County Estimated | 264 | -69.7% |
| 14 | Elmore County Estimated | 177 | -56% |
| 15 | Lemhi County Estimated | 166 | +11.4% |
| 16 | Franklin County Estimated | 152 | +60% |
| 17 | Clearwater County Estimated | 139 | +202.2% |
| 18 | Idaho County Estimated | 134 | -12.4% |
| 19 | Blaine County Estimated | 132 | +3.1% |
| 20 | Adams County Estimated | 101 | -47.4% |
| 20 | Custer County Estimated | 101 | +98% |
| 22 | Benewah County Estimated | 87 | -48.2% |
| 23 | Teton County Estimated | 71 | -53.6% |
| 24 | Washington County Estimated | 68 | +134.5% |
| 25 | Power County Estimated | 48 | +133.6% |
| 26 | Boundary County Estimated | 46 | -80.3% |
| 27 | Oneida County Estimated | 40 | -44.4% |
| 28 | Nez Perce County Estimated | 36 | -86.9% |
| 29 | Butte County Estimated | 19 | +35.7% |
| 30 | Camas County Estimated | 14 | +7.7% |
| 30 | Owyhee County Estimated | 14 | -93.3% |
| 32 | Caribou County Estimated | -2 | -102.1% |
| 33 | Bingham County Estimated | -9 | -102.8% |
| 34 | Bear Lake County Estimated | -10 | -115.6% |
| 35 | Lewis County Estimated | -32 | -191.4% |
| 36 | Jerome County Estimated | -34 | -182.9% |
| 37 | Lincoln County Estimated | -37 | -1,025% |
| 38 | Clark County Estimated | -42 | -481.8% |
| 39 | Fremont County Estimated | -51 | -138.9% |
| 40 | Gooding County Estimated | -62 | -10.7% |
| 41 | Cassia County Estimated | -69 | -263.2% |
| 42 | Minidoka County Estimated | -110 | -182.1% |
| 43 | Latah County Estimated | -149 | -151.7% |
| 44 | Madison County Estimated | -1,050 | -66.4% |
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
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 Idaho by net domestic migration, July to June, 2018) [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 Idaho by net domestic migration, July to June, 2018. 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/idaho-counties?period=2018. 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 Idaho by net domestic migration, July to June, 2018. 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/idaho-counties?period=2018.
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 Idaho by net domestic migration, July to June, 2018 [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/idaho-counties?period=2018 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_idaho_by_2018,
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 Idaho by net domestic migration, July to June, 2018}},
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/idaho-counties?period=2018. 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 Idaho by net domestic migration, July to June, 2018
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/idaho-counties?period=2018
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/idaho-counties?period=2018.
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 -
Use this data in your AI agent
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Rank Counties in Idaho by net domestic migration, July to June using official data, and cite the source.
rank_places {"indicator":"net_domestic_migration_july_june","level":"province","within":"Idaho","limit":10}
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Which county has the highest net domestic migration, July to June?
Ada County, with 10,391 in 2018, according to the U.S. Census Bureau.
Which county has the lowest net domestic migration, July to June?
Madison County, with -1,050 in 2018.
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 Idaho: more rankings
- Median age on 1 July (US county estimates)
- Crude birth rate, July to June
- Asian population share
- Deaths, July to June
- Rent-burdened renter households (rent 30 percent or more of income)
- Fair Market Rent, two bedrooms (HUD, monthly)
- Mean travel time to work
- Adult cigarette smoking rate, local model estimate