Counties in Iowa by net international migration rate, July to June
Jefferson County had the highest net international migration rate, July to June of 99 counties in 2016, at 10.63 per 1,000 inhabitants. Howard County had the lowest, at -0.32 per 1,000 inhabitants. The median was 0.74 per 1,000 inhabitants and the figure for Iowa was 1.92 per 1,000 inhabitants. Source: the U.S. Census Bureau.
Top 40 counties, 2016
Full ranking
| Rank | Counties | 2016 | Change on 2015 |
|---|---|---|---|
| 1 | Jefferson County Estimated | 10.63 | -1.81 pts |
| 2 | Story County Estimated | 7.68 | +0.18 pts |
| 3 | Johnson County Estimated | 6.61 | +0.69 pts |
| 4 | Buena Vista County Estimated | 5.6 | +0.97 pts |
| 5 | Crawford County Estimated | 5.03 | +0.18 pts |
| 6 | Louisa County Estimated | 4.09 | +0.1 pts |
| 7 | Wapello County Estimated | 3.93 | +1.08 pts |
| 8 | Clarke County Estimated | 3.78 | +2.59 pts |
| 9 | Marshall County Estimated | 2.78 | +0.04 pts |
| 10 | Dallas County Estimated | 2.51 | -0.71 pts |
| 11 | Allamakee County Estimated | 2.45 | +0.23 pts |
| 12 | Palo Alto County Estimated | 2.42 | +0.12 pts |
| 13 | Black Hawk County Estimated | 2.26 | -0.26 pts |
| 14 | Polk County Estimated | 2.26 | +0.16 pts |
| 15 | Mahaska County Estimated | 1.83 | +0.36 pts |
| 16 | Poweshiek County Estimated | 1.8 | -0.15 pts |
| 17 | Webster County Estimated | 1.76 | -0.16 pts |
| 18 | Woodbury County Estimated | 1.7 | +0.12 pts |
| 19 | Bremer County Estimated | 1.7 | +0.4 pts |
| 20 | Sioux County Estimated | 1.66 | -0.18 pts |
| 21 | Linn County Estimated | 1.66 | -0.05 pts |
| 22 | Muscatine County Estimated | 1.65 | -0.72 pts |
| 23 | Wright County Estimated | 1.64 | +0.55 pts |
| 24 | Floyd County Estimated | 1.51 | +0.26 pts |
| 25 | Scott County Estimated | 1.5 | -0.08 pts |
| 26 | Taylor County Estimated | 1.44 | +0.32 pts |
| 27 | Page County Estimated | 1.43 | +0.65 pts |
| 28 | Dickinson County Estimated | 1.41 | +1.05 pts |
| 29 | Henry County Estimated | 1.36 | +0.3 pts |
| 30 | Decatur County Estimated | 1.36 | -0.11 pts |
| 31 | Dubuque County Estimated | 1.31 | +0.32 pts |
| 32 | Cass County Estimated | 1.28 | +1.13 pts |
| 33 | Tama County Estimated | 1.16 | +0.47 pts |
| 34 | Plymouth County Estimated | 1.16 | -0.05 pts |
| 35 | Chickasaw County Estimated | 1.15 | +0.09 pts |
| 36 | Des Moines County Estimated | 1.11 | +0.41 pts |
| 37 | Emmet County Estimated | 1.04 | +0.22 pts |
| 38 | Clinton County Estimated | 1.01 | +0.05 pts |
| 39 | Fayette County Estimated | 1 | -0.14 pts |
| 40 | Osceola County Estimated | 0.98 | -0.31 pts |
| 41 | Clay County Estimated | 0.98 | +0.43 pts |
| 42 | Union County Estimated | 0.97 | +0.41 pts |
| 43 | Clayton County Estimated | 0.9 | +0.45 pts |
| 44 | Cerro Gordo County Estimated | 0.88 | +0.28 pts |
| 45 | Humboldt County Estimated | 0.84 | -0.1 pts |
| 46 | Hardin County Estimated | 0.81 | +0.23 pts |
| 47 | Ringgold County Estimated | 0.8 | -0 pts |
| 48 | Kossuth County Estimated | 0.79 | +0.27 pts |
| 49 | Guthrie County Estimated | 0.75 | +0.28 pts |
| 50 | Butler County Estimated | 0.74 | +0.21 pts |
| 51 | Keokuk County Estimated | 0.69 | +0.1 pts |
| 52 | Winneshiek County Estimated | 0.68 | +0.1 pts |
| 53 | Lyon County Estimated | 0.68 | +0.59 pts |
| 54 | Cherokee County Estimated | 0.61 | +0.18 pts |
| 55 | Pottawattamie County Estimated | 0.6 | +0.12 pts |
| 56 | Jones County Estimated | 0.59 | -0.29 pts |
| 57 | Washington County Estimated | 0.59 | -0 pts |
| 58 | Franklin County Estimated | 0.59 | +0.01 pts |
| 59 | Calhoun County Estimated | 0.51 | 0 pts |
| 60 | Montgomery County Estimated | 0.49 | +0.2 pts |
| 61 | Hamilton County Estimated | 0.46 | -0.13 pts |
| 62 | Hancock County Estimated | 0.46 | +0.09 pts |
| 63 | Adair County Estimated | 0.42 | +0.01 pts |
| 64 | Marion County Estimated | 0.42 | +0.21 pts |
| 65 | Appanoose County Estimated | 0.4 | +0.08 pts |
| 66 | Madison County Estimated | 0.38 | -0.13 pts |
| 67 | Buchanan County Estimated | 0.38 | -0.05 pts |
| 68 | Winnebago County Estimated | 0.38 | -0.47 pts |
| 69 | Benton County Estimated | 0.35 | -0 pts |
| 70 | Davis County Estimated | 0.34 | +0.34 pts |
| 71 | Mills County Estimated | 0.33 | -0.14 pts |
| 72 | Fremont County Estimated | 0.29 | -0.14 pts |
| 73 | Delaware County Estimated | 0.29 | -0.23 pts |
| 74 | Carroll County Estimated | 0.25 | -0.05 pts |
| 75 | Audubon County Estimated | 0.18 | 0 pts |
| 76 | Jasper County Estimated | 0.16 | -0.08 pts |
| 77 | Wayne County Estimated | 0.16 | +0.31 pts |
| 78 | Pocahontas County Estimated | 0.14 | -0.57 pts |
| 79 | Ida County Estimated | 0.14 | -1 pts |
| 80 | Worth County Estimated | 0.13 | 0 pts |
| 81 | Monroe County Estimated | 0.13 | -0.13 pts |
| 82 | Mitchell County Estimated | 0.09 | 0 pts |
| 83 | O'Brien County Estimated | 0.07 | -0.36 pts |
| 84 | Warren County Estimated | 0.06 | -0.15 pts |
| 85 | Jackson County Estimated | 0.05 | 0 pts |
| 86 | Adams County Estimated | 0 | 0 pts |
| 86 | Cedar County Estimated | 0 | -0.27 pts |
| 86 | Grundy County Estimated | 0 | 0 pts |
| 86 | Harrison County Estimated | 0 | 0 pts |
| 86 | Lucas County Estimated | 0 | 0 pts |
| 86 | Monona County Estimated | 0 | +0.11 pts |
| 86 | Sac County Estimated | 0 | 0 pts |
| 86 | Van Buren County Estimated | 0 | 0 pts |
| 94 | Boone County Estimated | -0.04 | +0.15 pts |
| 95 | Shelby County Estimated | -0.09 | -0.09 pts |
| 96 | Lee County Estimated | -0.09 | -0.12 pts |
| 97 | Greene County Estimated | -0.11 | -0.22 pts |
| 98 | Iowa County Estimated | -0.18 | -0.06 pts |
| 99 | Howard County Estimated | -0.32 | -0.32 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 Iowa by net international migration rate, July to June, 2016) [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 Iowa by net international migration rate, July to June, 2016. 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/iowa-counties?period=2016. 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 Iowa by net international migration rate, July to June, 2016. 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/iowa-counties?period=2016.
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 Iowa by net international migration rate, July to June, 2016 [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/iowa-counties?period=2016 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_iowa_by_2016,
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 Iowa by net international migration rate, July to June, 2016}},
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/iowa-counties?period=2016. 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 Iowa by net international migration rate, July to June, 2016
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/iowa-counties?period=2016
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/net-international-migration-rate-july-june/iowa-counties?period=2016.
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
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Rank Counties in Iowa 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":"Iowa","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=net_international_migration_rate_july_june&level=province&within=Iowa&limit=10Questions
Which county has the highest net international migration rate, July to June?
Jefferson County, with 10.63 per 1,000 inhabitants in 2016, according to the U.S. Census Bureau.
Which county has the lowest net international migration rate, July to June?
Howard County, with -0.32 per 1,000 inhabitants in 2016.
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.