Data / Rankings / Net international migration, July to June / Counties in Iowa

Counties in Iowa by net international migration, July to June

Polk County had the highest net international migration, July to June of 99 counties in 2016, at 1,064. Lee County had the lowest, at -3. The median was 10 and the figure for Iowa was 6,003. Source: the U.S. Census Bureau.

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Highest1,064Polk County
Lowest-3Lee County
Median1099 counties
Iowa6,003History

Map of counties, 2016

Adair County: 3 personsAdams County: 0 personsAllamakee County: 34 personsAppanoose County: 5 personsAudubon County: 1 personsBenton County: 9 personsBlack Hawk County: 302 personsBoone County: -1 personsBremer County: 42 personsBuchanan County: 8 personsBuena Vista County: 114 personsButler County: 11 personsCalhoun County: 5 personsCarroll County: 5 personsCass County: 17 personsCedar County: 0 personsCerro Gordo County: 38 personsCherokee County: 7 personsChickasaw County: 14 personsClarke County: 35 personsClay County: 16 personsClayton County: 16 personsClinton County: 48 personsCrawford County: 86 personsDallas County: 207 personsDavis County: 3 personsDecatur County: 11 personsDelaware County: 5 personsDes Moines County: 44 personsDickinson County: 24 personsDubuque County: 127 personsEmmet County: 10 personsFayette County: 20 personsFloyd County: 24 personsFranklin County: 6 personsFremont County: 2 personsGreene County: -1 personsGrundy County: 0 personsGuthrie County: 8 personsHamilton County: 7 personsHancock County: 5 personsHardin County: 14 personsHarrison County: 0 personsHenry County: 27 personsHoward County: -3 personsHumboldt County: 8 personsIda County: 1 personsIowa County: -3 personsJackson County: 1 personsJasper County: 6 personsJefferson County: 191 personsJohnson County: 966 personsJones County: 12 personsKeokuk County: 7 personsKossuth County: 12 personsLee County: -3 personsLinn County: 367 personsLouisa County: 46 personsLucas County: 0 personsLyon County: 8 personsMadison County: 6 personsMahaska County: 41 personsMarion County: 14 personsMarshall County: 112 personsMills County: 5 personsMitchell County: 1 personsMonona County: 0 personsMonroe County: 1 personsMontgomery County: 5 personsMuscatine County: 71 personsO'Brien County: 1 personsOsceola County: 6 personsPage County: 22 personsPalo Alto County: 22 personsPlymouth County: 29 personsPocahontas County: 1 personsPolk County: 1,064 personsPottawattamie County: 56 personsPoweshiek County: 33 personsRinggold County: 4 personsSac County: 0 personsScott County: 258 personsShelby County: -1 personsSioux County: 58 personsStory County: 744 personsTama County: 20 personsTaylor County: 9 personsUnion County: 12 personsVan Buren County: 0 personsWapello County: 139 personsWarren County: 3 personsWashington County: 13 personsWayne County: 1 personsWebster County: 65 personsWinnebago County: 4 personsWinneshiek County: 14 personsWoodbury County: 174 personsWorth County: 1 personsWright County: 21 persons
  • Under 0
  • 0 to 10
  • 10 to 20
  • 20 and over
persons, 2016. Red areas are below zero and blue areas above it. Source: U.S. Census Bureau, Population Estimates Program: net international migration, 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. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2016

Polk County: 1,064 personsPolk County1,064Johnson County: 966 personsJohnson County966Story County: 744 personsStory County744Linn County: 367 personsLinn County367Black Hawk County: 302 personsBlack Hawk County302Scott County: 258 personsScott County258Dallas County: 207 personsDallas County207Jefferson County: 191 personsJefferson County191Woodbury County: 174 personsWoodbury County174Wapello County: 139 personsWapello County139Dubuque County: 127 personsDubuque County127Buena Vista County: 114 personsBuena Vista County114Marshall County: 112 personsMarshall County112Crawford County: 86 personsCrawford County86Muscatine County: 71 personsMuscatine County71Webster County: 65 personsWebster County65Sioux County: 58 personsSioux County58Pottawattamie County: 56 personsPottawattamie County56Clinton County: 48 personsClinton County48Louisa County: 46 personsLouisa County46Des Moines County: 44 personsDes Moines County44Bremer County: 42 personsBremer County42Mahaska County: 41 personsMahaska County41Cerro Gordo County: 38 personsCerro Gordo County38Clarke County: 35 personsClarke County35Allamakee County: 34 personsAllamakee County34Poweshiek County: 33 personsPoweshiek County33Plymouth County: 29 personsPlymouth County29Henry County: 27 personsHenry County27Dickinson County: 24 personsDickinson County24Floyd County: 24 personsFloyd County24Page County: 22 personsPage County22Palo Alto County: 22 personsPalo Alto County22Wright County: 21 personsWright County21Fayette County: 20 personsFayette County20Tama County: 20 personsTama County20Cass County: 17 personsCass County17Clay County: 16 personsClay County16Clayton County: 16 personsClayton County16Chickasaw County: 14 personsChickasaw County14Polk County: 1,064 personsPolk County1,064Johnson County: 966 personsJohnson County966Story County: 744 personsStory County744Linn County: 367 personsLinn County367Black Hawk County: 302 personsBlack Hawk County302Scott County: 258 personsScott County258Dallas County: 207 personsDallas County207Jefferson County: 191 personsJefferson County191Woodbury County: 174 personsWoodbury County174Wapello County: 139 personsWapello County139Dubuque County: 127 personsDubuque County127Buena Vista County: 114 personsBuena Vista County114Marshall County: 112 personsMarshall County112Crawford County: 86 personsCrawford County86Muscatine County: 71 personsMuscatine County71Webster County: 65 personsWebster County65Sioux County: 58 personsSioux County58Pottawattamie County: 56 personsPottawattamie County56Clinton County: 48 personsClinton County48Louisa County: 46 personsLouisa County46Des Moines County: 44 personsDes Moines County44Bremer County: 42 personsBremer County42Mahaska County: 41 personsMahaska County41Cerro Gordo County: 38 personsCerro Gordo County38Clarke County: 35 personsClarke County35Allamakee County: 34 personsAllamakee County34Poweshiek County: 33 personsPoweshiek County33Plymouth County: 29 personsPlymouth County29Henry County: 27 personsHenry County27Dickinson County: 24 personsDickinson County24Floyd County: 24 personsFloyd County24Page County: 22 personsPage County22Palo Alto County: 22 personsPalo Alto County22Wright County: 21 personsWright County21Fayette County: 20 personsFayette County20Tama County: 20 personsTama County20Cass County: 17 personsCass County17Clay County: 16 personsClay County16Clayton County: 16 personsClayton County16Chickasaw County: 14 personsChickasaw County14
persons. Source: U.S. Census Bureau, Population Estimates Program: net international migration, 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

RankCounties2016
persons		Change on 2015
1Polk County Estimated1,064+9.1%
2Johnson County Estimated966+13.4%
3Story County Estimated744+3%
4Linn County Estimated367-2.1%
5Black Hawk County Estimated302-10.4%
6Scott County Estimated258-4.8%
7Dallas County Estimated207-18.8%
8Jefferson County Estimated191-14%
9Woodbury County Estimated174+8.1%
10Wapello County Estimated139+37.6%
11Dubuque County Estimated127+32.3%
12Buena Vista County Estimated114+20%
13Marshall County Estimated112+0.9%
14Crawford County Estimated86+3.6%
15Muscatine County Estimated71-30.4%
16Webster County Estimated65-8.5%
17Sioux County Estimated58-9.4%
18Pottawattamie County Estimated56+24.4%
19Clinton County Estimated48+4.3%
20Louisa County Estimated46+2.2%
21Des Moines County Estimated44+57.1%
22Bremer County Estimated42+31.3%
23Mahaska County Estimated41+24.2%
24Cerro Gordo County Estimated38+46.2%
25Clarke County Estimated35+218.2%
26Allamakee County Estimated34+9.7%
27Poweshiek County Estimated33-8.3%
28Plymouth County Estimated29-3.3%
29Henry County Estimated27+28.6%
30Dickinson County Estimated24+300%
30Floyd County Estimated24+20%
32Page County Estimated22+83.3%
32Palo Alto County Estimated22+4.8%
34Wright County Estimated21+50%
35Fayette County Estimated20-13%
35Tama County Estimated20+66.7%
37Cass County Estimated17+750%
38Clay County Estimated16+77.8%
38Clayton County Estimated16+100%
40Chickasaw County Estimated14+7.7%
40Hardin County Estimated14+40%
40Marion County Estimated14+100%
40Winneshiek County Estimated14+16.7%
44Washington County Estimated130%
45Jones County Estimated12-33.3%
45Kossuth County Estimated12+50%
45Union County Estimated12+71.4%
48Butler County Estimated11+37.5%
48Decatur County Estimated11-8.3%
50Emmet County Estimated10+25%
51Benton County Estimated90%
51Taylor County Estimated9+28.6%
53Buchanan County Estimated8-11.1%
53Guthrie County Estimated8+60%
53Humboldt County Estimated8-11.1%
53Lyon County Estimated8+700%
57Cherokee County Estimated7+40%
57Hamilton County Estimated7-22.2%
57Keokuk County Estimated7+16.7%
60Franklin County Estimated60%
60Jasper County Estimated6-33.3%
60Madison County Estimated6-25%
60Osceola County Estimated6-25%
64Appanoose County Estimated5+25%
64Calhoun County Estimated50%
64Carroll County Estimated5-16.7%
64Delaware County Estimated5-44.4%
64Hancock County Estimated5+25%
64Mills County Estimated5-28.6%
64Montgomery County Estimated5+66.7%
71Ringgold County Estimated40%
71Winnebago County Estimated4-55.6%
73Adair County Estimated30%
73Davis County Estimated3n/a
73Warren County Estimated3-70%
76Fremont County Estimated2-33.3%
77Audubon County Estimated10%
77Ida County Estimated1-87.5%
77Jackson County Estimated10%
77Mitchell County Estimated10%
77Monroe County Estimated1-50%
77O'Brien County Estimated1-83.3%
77Pocahontas County Estimated1-80%
77Wayne County Estimated1+200%
77Worth County Estimated10%
86Adams County Estimated0n/a
86Cedar County Estimated0-100%
86Grundy County Estimated0n/a
86Harrison County Estimated0n/a
86Lucas County Estimated0n/a
86Monona County Estimated0+100%
86Sac County Estimated0n/a
86Van Buren County Estimated0n/a
94Boone County Estimated-1+80%
94Greene County Estimated-1-200%
94Shelby County Estimated-1n/a
97Howard County Estimated-3n/a
97Iowa County Estimated-3-50%
97Lee County Estimated-3-400%

Other periods

About this ranking

Estimated moves into the area from abroad minus moves out of the area to other countries, from July 1 of the previous year through June 30 of the reported year.

More on how it is measured
  • United States: Census Bureau estimates, including people born in the United States and abroad, moves between the states and Puerto Rico, and net movement of the Armed Forces overseas.
  • Canada: Statistics Canada immigrants, minus net emigration, plus the net change in non-permanent residents.
  • Australia: ABS net overseas migration for the financial year.
  • United Kingdom local authorities: Office for National Statistics mid-year estimates, counting people who move for at least 12 months.

A component of each country's official population estimates. Methods differ between the statistical offices, so compare places within a country first. Differs from the World Bank net_migration series, which uses calendar years and a different method.

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, 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 international migration, 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, 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, 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, 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-july-june/iowa-counties?period=2016. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program: net international migration, 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, 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-july-june/iowa-counties?period=2016.

Harvard

U.S. Census Bureau (2026) Population Estimates Program: net international migration, 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, 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-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, 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, 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-july-june/iowa-counties?period=2016. Publisher attribution: U.S. Census Bureau. Population Estimates Program: net international migration, 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, 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, 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-july-june/iowa-counties?period=2016
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/net-international-migration-july-june/iowa-counties?period=2016.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program: net international migration, 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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Rank Counties in Iowa by net international migration, July to June using official data, and cite the source.
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Questions

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

Polk County, with 1,064 in 2016, according to the U.S. Census Bureau.

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

Lee County, with -3 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, 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 international migration, July to June: other rankings

Counties in Iowa: more rankings