Counties in Washington by net international migration rate, July to June
Whitman County had the highest net international migration rate, July to June of 39 counties in 2018, at 8.4 per 1,000 inhabitants. Island County had the lowest, at -1 per 1,000 inhabitants. The median was 0.53 per 1,000 inhabitants and the figure for Washington was 3.16 per 1,000 inhabitants. Source: the U.S. Census Bureau.
Map of counties, 2018
- Under -0.42
- -0.42 to -0.23
- -0.23 to 0
- 0 to 0.51
- 0.51 to 1.3
- 1.3 and over
All counties, 2018
Full ranking
| Rank | Counties | 2018 | Change on 2017 |
|---|---|---|---|
| 1 | Whitman County Estimated | 8.4 | -1.85 pts |
| 2 | King County Estimated | 7.97 | -1.94 pts |
| 3 | Columbia County Estimated | 4.46 | -0.04 pts |
| 4 | Snohomish County Estimated | 3.11 | -0.9 pts |
| 5 | Garfield County Estimated | 2.68 | -0.89 pts |
| 6 | Mason County Estimated | 1.95 | -0.43 pts |
| 7 | San Juan County Estimated | 1.6 | -0.16 pts |
| 8 | Whatcom County Estimated | 1.6 | -0.5 pts |
| 9 | Kittitas County Estimated | 1.37 | -0.37 pts |
| 10 | Benton County Estimated | 1.3 | -0.43 pts |
| 11 | Pacific County Estimated | 1.28 | -0.44 pts |
| 12 | Pierce County Estimated | 1.23 | -0.73 pts |
| 13 | Skagit County Estimated | 0.93 | -0.53 pts |
| 14 | Clallam County Estimated | 0.87 | -0.25 pts |
| 15 | Clark County Estimated | 0.72 | -0.39 pts |
| 16 | Thurston County Estimated | 0.69 | -0.59 pts |
| 17 | Okanogan County Estimated | 0.69 | -0.46 pts |
| 18 | Walla Walla County Estimated | 0.69 | -0.35 pts |
| 19 | Spokane County Estimated | 0.63 | -0.32 pts |
| 20 | Grant County Estimated | 0.53 | -0.69 pts |
| 21 | Douglas County Estimated | 0.52 | -0.49 pts |
| 22 | Skamania County Estimated | 0.51 | -0.01 pts |
| 23 | Lewis County Estimated | 0.49 | -0.16 pts |
| 24 | Jefferson County Estimated | 0.29 | -0.16 pts |
| 25 | Franklin County Estimated | 0.27 | -0.59 pts |
| 26 | Kitsap County Estimated | 0.18 | -0.55 pts |
| 27 | Stevens County Estimated | 0.13 | -0.05 pts |
| 28 | Ferry County Estimated | 0.13 | -0 pts |
| 29 | Lincoln County Estimated | 0.09 | -0 pts |
| 30 | Adams County Estimated | 0.05 | -0.93 pts |
| 31 | Pend Oreille County Estimated | 0 | -0.23 pts |
| 31 | Wahkiakum County Estimated | 0 | 0 pts |
| 33 | Cowlitz County Estimated | -0.01 | -0.08 pts |
| 34 | Klickitat County Estimated | -0.14 | -0.28 pts |
| 35 | Grays Harbor County Estimated | -0.23 | -0.07 pts |
| 36 | Asotin County Estimated | -0.4 | -0.13 pts |
| 37 | Chelan County Estimated | -0.42 | -0.16 pts |
| 38 | Yakima County Estimated | -0.56 | -0.48 pts |
| 39 | Island County Estimated | -1 | -2.02 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 Washington by net international migration rate, 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 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 Washington by net international migration rate, 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-international-migration-rate-july-june/washington-counties?period=2018. 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 Washington by net international migration rate, 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-international-migration-rate-july-june/washington-counties?period=2018.
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 Washington by net international migration rate, 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-international-migration-rate-july-june/washington-counties?period=2018 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_washington_by_2018,
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 Washington by net international migration rate, 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-international-migration-rate-july-june/washington-counties?period=2018. 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 Washington by net international migration rate, 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-international-migration-rate-july-june/washington-counties?period=2018
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/net-international-migration-rate-july-june/washington-counties?period=2018.
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 Washington 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":"Washington","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=net_international_migration_rate_july_june&level=province&within=Washington&limit=10Questions
Which county has the highest net international migration rate, July to June?
Whitman County, with 8.4 per 1,000 inhabitants in 2018, according to the U.S. Census Bureau.
Which county has the lowest net international migration rate, July to June?
Island County, with -1 per 1,000 inhabitants 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 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.