Counties in Illinois by net international migration, July to June

Cook County had the highest net international migration, July to June of 102 counties in 2020, at 6,356. McHenry County had the lowest, at -28. The median was 3 and the figure for Illinois was 11,164. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest6,356Cook County
Median3102 counties
Illinois11,164History

Map of counties, 2020

Adams County: 17 personsAlexander County: 0 personsBond County: 5 personsBoone County: -9 personsBrown County: 5 personsBureau County: 10 personsCalhoun County: 0 personsCarroll County: 2 personsCass County: 35 personsChampaign County: 1,030 personsChristian County: 3 personsClark County: 0 personsClay County: -1 personsClinton County: 5 personsColes County: 30 personsCook County: 6,356 personsCrawford County: -1 personsCumberland County: 0 personsDeKalb County: 156 personsDe Witt County: -1 personsDouglas County: -1 personsDuPage County: 1,189 personsEdgar County: 2 personsEdwards County: 1 personsEffingham County: 18 personsFayette County: 2 personsFord County: 0 personsFranklin County: 5 personsFulton County: 2 personsGallatin County: 0 personsGreene County: 0 personsGrundy County: 12 personsHamilton County: 3 personsHancock County: 1 personsHardin County: 0 personsHenderson County: 1 personsHenry County: -2 personsIroquois County: 0 personsJackson County: 121 personsJasper County: 2 personsJefferson County: 10 personsJersey County: 5 personsJo Daviess County: -3 personsJohnson County: 1 personsKane County: -24 personsKankakee County: 14 personsKendall County: 62 personsKnox County: 54 personsLake County: 542 personsLaSalle County: 8 personsLawrence County: -1 personsLee County: 0 personsLivingston County: 4 personsLogan County: 9 personsMcDonough County: 55 personsMcHenry County: -28 personsMcLean County: 323 personsMacon County: 20 personsMacoupin County: 4 personsMadison County: 41 personsMarion County: 10 personsMarshall County: 1 personsMason County: 0 personsMassac County: 0 personsMenard County: 0 personsMercer County: 2 personsMonroe County: 4 personsMontgomery County: 0 personsMorgan County: 29 personsMoultrie County: 2 personsOgle County: 14 personsPeoria County: 187 personsPerry County: 6 personsPiatt County: -1 personsPike County: 0 personsPope County: 0 personsPulaski County: 2 personsPutnam County: 1 personsRandolph County: 12 personsRichland County: 1 personsRock Island County: 181 personsSt. Clair County: 82 personsSaline County: 0 personsSangamon County: 139 personsSchuyler County: 16 personsScott County: 5 personsShelby County: 0 personsStark County: 1 personsStephenson County: 17 personsTazewell County: 33 personsUnion County: 3 personsVermilion County: 13 personsWabash County: 2 personsWarren County: 19 personsWashington County: 1 personsWayne County: 4 personsWhite County: 2 personsWhiteside County: 4 personsWill County: 66 personsWilliamson County: 25 personsWinnebago County: 187 personsWoodford County: 0 persons
  • Under 0
  • 0 to 10
  • 10 and over
persons, 2020. 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, 2020

Cook County: 6,356 personsCook County6,356DuPage County: 1,189 personsDuPage County1,189Champaign County: 1,030 personsChampaign County1,030Lake County: 542 personsLake County542McLean County: 323 personsMcLean County323Peoria County: 187 personsPeoria County187Winnebago County: 187 personsWinnebago County187Rock Island County: 181 personsRock Island County181DeKalb County: 156 personsDeKalb County156Sangamon County: 139 personsSangamon County139Jackson County: 121 personsJackson County121St. Clair County: 82 personsSt. Clair County82Will County: 66 personsWill County66Kendall County: 62 personsKendall County62McDonough County: 55 personsMcDonough County55Knox County: 54 personsKnox County54Madison County: 41 personsMadison County41Cass County: 35 personsCass County35Tazewell County: 33 personsTazewell County33Coles County: 30 personsColes County30Morgan County: 29 personsMorgan County29Williamson County: 25 personsWilliamson County25Macon County: 20 personsMacon County20Warren County: 19 personsWarren County19Effingham County: 18 personsEffingham County18Adams County: 17 personsAdams County17Stephenson County: 17 personsStephenson County17Schuyler County: 16 personsSchuyler County16Kankakee County: 14 personsKankakee County14Ogle County: 14 personsOgle County14Vermilion County: 13 personsVermilion County13Grundy County: 12 personsGrundy County12Randolph County: 12 personsRandolph County12Bureau County: 10 personsBureau County10Jefferson County: 10 personsJefferson County10Marion County: 10 personsMarion County10Logan County: 9 personsLogan County9LaSalle County: 8 personsLaSalle County8Perry County: 6 personsPerry County6Bond County: 5 personsBond County5Cook County: 6,356 personsCook County6,356DuPage County: 1,189 personsDuPage County1,189Champaign County: 1,030 personsChampaign County1,030Lake County: 542 personsLake County542McLean County: 323 personsMcLean County323Peoria County: 187 personsPeoria County187Winnebago County: 187 personsWinnebago County187Rock Island County: 181 personsRock Island County181DeKalb County: 156 personsDeKalb County156Sangamon County: 139 personsSangamon County139Jackson County: 121 personsJackson County121St. Clair County: 82 personsSt. Clair County82Will County: 66 personsWill County66Kendall County: 62 personsKendall County62McDonough County: 55 personsMcDonough County55Knox County: 54 personsKnox County54Madison County: 41 personsMadison County41Cass County: 35 personsCass County35Tazewell County: 33 personsTazewell County33Coles County: 30 personsColes County30Morgan County: 29 personsMorgan County29Williamson County: 25 personsWilliamson County25Macon County: 20 personsMacon County20Warren County: 19 personsWarren County19Effingham County: 18 personsEffingham County18Adams County: 17 personsAdams County17Stephenson County: 17 personsStephenson County17Schuyler County: 16 personsSchuyler County16Kankakee County: 14 personsKankakee County14Ogle County: 14 personsOgle County14Vermilion County: 13 personsVermilion County13Grundy County: 12 personsGrundy County12Randolph County: 12 personsRandolph County12Bureau County: 10 personsBureau County10Jefferson County: 10 personsJefferson County10Marion County: 10 personsMarion County10Logan County: 9 personsLogan County9LaSalle County: 8 personsLaSalle County8Perry County: 6 personsPerry County6Bond County: 5 personsBond County5
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

RankCounties2020
persons
Change on 2019
1Cook County Estimated6,356-17%
2DuPage County Estimated1,189-19.7%
3Champaign County Estimated1,030-20.7%
4Lake County Estimated542-3.7%
5McLean County Estimated323-19%
6Peoria County Estimated187-17.3%
6Winnebago County Estimated187-7.9%
8Rock Island County Estimated181-17%
9DeKalb County Estimated156-22.8%
10Sangamon County Estimated139-14.7%
11Jackson County Estimated121-19.3%
12St. Clair County Estimated82-21.2%
13Will County Estimated66+6,700%
14Kendall County Estimated62+1.6%
15McDonough County Estimated55-30.4%
16Knox County Estimated54-25%
17Madison County Estimated41-22.6%
18Cass County Estimated35-7.9%
19Tazewell County Estimated33-31.3%
20Coles County Estimated30-30.2%
21Morgan County Estimated29-25.6%
22Williamson County Estimated25+8.7%
23Macon County Estimated20-35.5%
24Warren County Estimated19-20.8%
25Effingham County Estimated18-10%
26Adams County Estimated17+30.8%
26Stephenson County Estimated17+6.3%
28Schuyler County Estimated16-23.8%
29Kankakee County Estimated14+27.3%
29Ogle County Estimated14-17.6%
31Vermilion County Estimated13-18.8%
32Grundy County Estimated12+20%
32Randolph County Estimated12-14.3%
34Bureau County Estimated10-9.1%
34Jefferson County Estimated10+100%
34Marion County Estimated10-23.1%
37Logan County Estimated9-10%
38LaSalle County Estimated8-27.3%
39Perry County Estimated6-25%
40Bond County Estimated5-28.6%
40Brown County Estimated5+66.7%
40Clinton County Estimated5+66.7%
40Franklin County Estimated50%
40Jersey County Estimated50%
40Scott County Estimated5-16.7%
46Livingston County Estimated4-33.3%
46Macoupin County Estimated4+33.3%
46Monroe County Estimated4+33.3%
46Wayne County Estimated4-33.3%
46Whiteside County Estimated4-20%
51Christian County Estimated3-50%
51Hamilton County Estimated3-25%
51Union County Estimated3-40%
54Carroll County Estimated2n/a
54Edgar County Estimated2-71.4%
54Fayette County Estimated2-33.3%
54Fulton County Estimated2-60%
54Jasper County Estimated2+100%
54Mercer County Estimated2-50%
54Moultrie County Estimated20%
54Pulaski County Estimated2-33.3%
54Wabash County Estimated2-33.3%
54White County Estimated2+100%
64Edwards County Estimated1n/a
64Hancock County Estimated1-50%
64Henderson County Estimated10%
64Johnson County Estimated1+200%
64Marshall County Estimated10%
64Putnam County Estimated1+200%
64Richland County Estimated1-80%
64Stark County Estimated10%
64Washington County Estimated1-66.7%
73Alexander County Estimated0+100%
73Calhoun County Estimated0n/a
73Clark County Estimated0+100%
73Cumberland County Estimated0n/a
73Ford County Estimated0n/a
73Gallatin County Estimated0n/a
73Greene County Estimated0-100%
73Hardin County Estimated0n/a
73Iroquois County Estimated0+100%
73Lee County Estimated0+100%
73Mason County Estimated0n/a
73Massac County Estimated0n/a
73Menard County Estimated0n/a
73Montgomery County Estimated0n/a
73Pike County Estimated0-100%
73Pope County Estimated0n/a
73Saline County Estimated0n/a
73Shelby County Estimated0+100%
73Woodford County Estimated0-100%
92Clay County Estimated-10%
92Crawford County Estimated-10%
92De Witt County Estimated-1+50%
92Douglas County Estimated-1+66.7%
92Lawrence County Estimated-1n/a
92Piatt County Estimated-10%
98Henry County Estimated-2+75%
99Jo Daviess County Estimated-3+50%
100Boone County Estimated-9+30.8%
101Kane County Estimated-24+80%
102McHenry County Estimated-28+66.3%

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 Illinois by net international migration, July to June, 2020) [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 Illinois by net international migration, July to June, 2020. 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/illinois-counties?period=2020. 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 Illinois by net international migration, July to June, 2020. 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/illinois-counties?period=2020.

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 Illinois by net international migration, July to June, 2020 [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/illinois-counties?period=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_illinois_by_2020,
  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 Illinois by net international migration, July to June, 2020}},
  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/illinois-counties?period=2020. 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 Illinois by net international migration, July to June, 2020
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/illinois-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/net-international-migration-july-june/illinois-counties?period=2020.
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 Illinois 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?

Cook County, with 6,356 in 2020, according to the U.S. Census Bureau.

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

McHenry County, with -28 in 2020.

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 Illinois: more rankings