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 2019, at 11.13 per 1,000 inhabitants. Iowa County had the lowest, at -0.25 per 1,000 inhabitants. The median was 0.81 per 1,000 inhabitants and the figure for Iowa was 2.19 per 1,000 inhabitants. Source: the U.S. Census Bureau.

Highest11.13Jefferson County

Lowest-0.25Iowa County

Median0.8199 counties

Iowa2.19History

Top 40 counties, 2019

per 1,000 inhabitants. Source: 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.

Full ranking

Rank	Counties	2019 per 1,000 inhabitants	Change on 2018
1	Jefferson County Estimated	11.13	+5.39 pts
2	Crawford County Estimated	9.59	+6.66 pts
3	Story County Estimated	7.41	+4.04 pts
4	Johnson County Estimated	7.27	+3.48 pts
5	Buena Vista County Estimated	5.87	+4.02 pts
6	Clarke County Estimated	5.62	+3.29 pts
7	Wapello County Estimated	5.27	+2.5 pts
8	Louisa County Estimated	4.96	+2.99 pts
9	Marshall County Estimated	4.51	+3.51 pts
10	Taylor County Estimated	3.07	+1.61 pts
11	Black Hawk County Estimated	2.72	+1.38 pts
12	Palo Alto County Estimated	2.7	+1.25 pts
13	Polk County Estimated	2.52	+1.59 pts
14	Dallas County Estimated	2.41	+1.03 pts
15	Woodbury County Estimated	2.37	+1.41 pts
16	Tama County Estimated	2.37	+1.78 pts
17	Allamakee County Estimated	2.33	+1.6 pts
18	Wright County Estimated	2.3	+1.43 pts
19	Bremer County Estimated	2.23	+0.87 pts
20	Chickasaw County Estimated	2.18	+1.34 pts
21	Linn County Estimated	2.08	+1.09 pts
22	Washington County Estimated	1.99	+1.45 pts
23	Webster County Estimated	1.85	+1.11 pts
24	Page County Estimated	1.84	+1.06 pts
25	Poweshiek County Estimated	1.84	+0.92 pts
26	Hardin County Estimated	1.84	+1.19 pts
27	Muscatine County Estimated	1.76	+0.29 pts
28	Sioux County Estimated	1.75	+1.12 pts
29	Mahaska County Estimated	1.75	+0.76 pts
30	Humboldt County Estimated	1.58	+1.05 pts
31	Scott County Estimated	1.56	+0.95 pts
32	Dubuque County Estimated	1.54	+0.82 pts
33	Osceola County Estimated	1.5	+1.17 pts
34	Cass County Estimated	1.24	+0.55 pts
35	Union County Estimated	1.22	+0.5 pts
36	Emmet County Estimated	1.19	+0.23 pts
37	Calhoun County Estimated	1.14	+0.73 pts
38	Dickinson County Estimated	1.1	+0.46 pts
39	Clinton County Estimated	1.05	+0.8 pts
40	Fayette County Estimated	1.02	+0.56 pts
41	Decatur County Estimated	1.02	+0.13 pts
42	Pottawattamie County Estimated	1.01	+0.72 pts
43	Keokuk County Estimated	0.98	+0.39 pts
44	Winneshiek County Estimated	0.9	+0.75 pts
45	Cerro Gordo County Estimated	0.89	+0.66 pts
46	Clayton County Estimated	0.86	+0.4 pts
47	Lyon County Estimated	0.85	+0.34 pts
48	Ringgold County Estimated	0.82	+0.42 pts
49	Kossuth County Estimated	0.81	+0.61 pts
50	Clay County Estimated	0.81	+0.43 pts
51	Montgomery County Estimated	0.8	+0.61 pts
52	Cherokee County Estimated	0.8	+0.27 pts
53	Henry County Estimated	0.75	+0.3 pts
54	Hancock County Estimated	0.75	+0.38 pts
55	Guthrie County Estimated	0.75	+0.46 pts
56	Butler County Estimated	0.69	+0.49 pts
57	Des Moines County Estimated	0.69	-0.33 pts
58	Jones County Estimated	0.68	+0.34 pts
59	Plymouth County Estimated	0.68	+0.56 pts
60	Hamilton County Estimated	0.61	+0.47 pts
61	Franklin County Estimated	0.5	+0.4 pts
62	Winnebago County Estimated	0.48	-0.85 pts
63	Delaware County Estimated	0.41	+0.18 pts
64	Appanoose County Estimated	0.4	+0.08 pts
65	Madison County Estimated	0.37	+0.12 pts
66	Audubon County Estimated	0.36	+0.18 pts
67	Jasper County Estimated	0.3	+0.22 pts
68	Fremont County Estimated	0.29	+0.29 pts
69	Adair County Estimated	0.28	+0.14 pts
70	Benton County Estimated	0.27	+0.2 pts
71	Mills County Estimated	0.26	+0.26 pts
72	Carroll County Estimated	0.25	+0.1 pts
73	Marion County Estimated	0.24	+0.12 pts
74	Buchanan County Estimated	0.24	+0.09 pts
75	Davis County Estimated	0.22	+0.22 pts
76	Warren County Estimated	0.16	+0.16 pts
77	Boone County Estimated	0.15	+0.19 pts
78	Pocahontas County Estimated	0.15	+0.3 pts
79	Van Buren County Estimated	0.14	+0.14 pts
80	Worth County Estimated	0.13	+0.13 pts
81	Floyd County Estimated	0.13	-2.03 pts
82	Mitchell County Estimated	0.09	-0 pts
83	O'Brien County Estimated	0.07	+0.07 pts
84	Cedar County Estimated	0.05	+0.11 pts
85	Jackson County Estimated	0.05	0 pts
86	Adams County Estimated	0	0 pts
86	Greene County Estimated	0	0 pts
86	Grundy County Estimated	0	0 pts
86	Harrison County Estimated	0	-0.14 pts
86	Ida County Estimated	0	0 pts
86	Monroe County Estimated	0	0 pts
86	Wayne County Estimated	0	0 pts
93	Lee County Estimated	-0.09	+0.03 pts
94	Sac County Estimated	-0.1	-0 pts
95	Howard County Estimated	-0.11	+0.11 pts
96	Monona County Estimated	-0.12	-0 pts
97	Lucas County Estimated	-0.12	0 pts
98	Shelby County Estimated	-0.17	-0 pts
99	Iowa County Estimated	-0.25	0 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

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 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, 2019) [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, 2019. 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=2019. 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, 2019. 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=2019.

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, 2019 [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=2019 (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_iowa_by_2019,
  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, 2019}},
  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=2019. 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, 2019
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=2019
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/net-international-migration-rate-july-june/iowa-counties?period=2019.
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  -

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Questions

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

Jefferson County, with 11.13 per 1,000 inhabitants in 2019, according to the U.S. Census Bureau.

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

Iowa County, with -0.25 per 1,000 inhabitants in 2019.

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.