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 2021, at 6,599. Boone County had the lowest, at -3. The median was 3 and the figure for Illinois was 11,432. Source: the U.S. Census Bureau.
Map of counties, 2021
- Under 0
- 0 to 10
- 10 and over
Top 40 counties, 2021
Full ranking
| Rank | Counties | 2021 | Change on 2020 |
|---|---|---|---|
| 1 | Cook County Estimated | 6,599 | +3.8% |
| 2 | DuPage County Estimated | 1,254 | +5.5% |
| 3 | Champaign County Estimated | 708 | -31.3% |
| 4 | Lake County Estimated | 522 | -3.7% |
| 5 | Will County Estimated | 371 | +462.1% |
| 6 | Winnebago County Estimated | 230 | +23% |
| 7 | McLean County Estimated | 207 | -35.9% |
| 8 | Peoria County Estimated | 202 | +8% |
| 9 | Kane County Estimated | 190 | +891.7% |
| 10 | Rock Island County Estimated | 136 | -24.9% |
| 11 | DeKalb County Estimated | 117 | -25% |
| 12 | Sangamon County Estimated | 106 | -23.7% |
| 13 | Jackson County Estimated | 76 | -37.2% |
| 14 | Kendall County Estimated | 61 | -1.6% |
| 15 | St. Clair County Estimated | 56 | -31.7% |
| 16 | Macon County Estimated | 52 | +160% |
| 17 | Knox County Estimated | 46 | -14.8% |
| 17 | McHenry County Estimated | 46 | +264.3% |
| 19 | Kankakee County Estimated | 42 | +200% |
| 19 | Madison County Estimated | 42 | +2.4% |
| 21 | Cass County Estimated | 26 | -25.7% |
| 21 | LaSalle County Estimated | 26 | +225% |
| 21 | Tazewell County Estimated | 26 | -21.2% |
| 21 | Williamson County Estimated | 26 | +4% |
| 25 | Randolph County Estimated | 21 | +75% |
| 26 | Coles County Estimated | 18 | -40% |
| 26 | Grundy County Estimated | 18 | +50% |
| 26 | Whiteside County Estimated | 18 | +350% |
| 29 | Clinton County Estimated | 15 | +200% |
| 29 | Ogle County Estimated | 15 | +7.1% |
| 31 | Vermilion County Estimated | 13 | 0% |
| 32 | McDonough County Estimated | 12 | -78.2% |
| 33 | Livingston County Estimated | 11 | +175% |
| 34 | Wayne County Estimated | 10 | +150% |
| 35 | Ford County Estimated | 9 | |
| 35 | Warren County Estimated | 9 | -52.6% |
| 37 | Effingham County Estimated | 7 | -61.1% |
| 38 | Woodford County Estimated | 5 | |
| 39 | Bureau County Estimated | 4 | -60% |
| 39 | Douglas County Estimated | 4 | +500% |
| 39 | Jefferson County Estimated | 4 | -60% |
| 39 | Logan County Estimated | 4 | -55.6% |
| 39 | Morgan County Estimated | 4 | -86.2% |
| 39 | Perry County Estimated | 4 | -33.3% |
| 39 | Pike County Estimated | 4 | |
| 39 | Stephenson County Estimated | 4 | -76.5% |
| 47 | Bond County Estimated | 3 | -40% |
| 47 | Fayette County Estimated | 3 | +50% |
| 47 | Lee County Estimated | 3 | |
| 47 | Monroe County Estimated | 3 | -25% |
| 47 | Schuyler County Estimated | 3 | -81.3% |
| 47 | Shelby County Estimated | 3 | |
| 47 | Wabash County Estimated | 3 | +50% |
| 47 | White County Estimated | 3 | +50% |
| 55 | Adams County Estimated | 2 | -88.2% |
| 55 | Brown County Estimated | 2 | -60% |
| 55 | Carroll County Estimated | 2 | 0% |
| 55 | Franklin County Estimated | 2 | -60% |
| 55 | Jasper County Estimated | 2 | 0% |
| 55 | Jersey County Estimated | 2 | -60% |
| 55 | Lawrence County Estimated | 2 | +300% |
| 55 | Macoupin County Estimated | 2 | -50% |
| 55 | Marion County Estimated | 2 | -80% |
| 55 | Menard County Estimated | 2 | |
| 55 | Union County Estimated | 2 | -33.3% |
| 66 | Christian County Estimated | 1 | -66.7% |
| 66 | Cumberland County Estimated | 1 | |
| 66 | De Witt County Estimated | 1 | +200% |
| 66 | Edwards County Estimated | 1 | 0% |
| 66 | Fulton County Estimated | 1 | -50% |
| 66 | Jo Daviess County Estimated | 1 | +133.3% |
| 66 | Mason County Estimated | 1 | |
| 66 | Montgomery County Estimated | 1 | |
| 66 | Moultrie County Estimated | 1 | -50% |
| 66 | Richland County Estimated | 1 | 0% |
| 66 | Stark County Estimated | 1 | 0% |
| 66 | Washington County Estimated | 1 | 0% |
| 78 | Alexander County Estimated | 0 | |
| 78 | Calhoun County Estimated | 0 | |
| 78 | Clark County Estimated | 0 | |
| 78 | Clay County Estimated | 0 | +100% |
| 78 | Crawford County Estimated | 0 | +100% |
| 78 | Gallatin County Estimated | 0 | |
| 78 | Greene County Estimated | 0 | |
| 78 | Hamilton County Estimated | 0 | -100% |
| 78 | Hancock County Estimated | 0 | -100% |
| 78 | Henderson County Estimated | 0 | -100% |
| 78 | Henry County Estimated | 0 | +100% |
| 78 | Iroquois County Estimated | 0 | |
| 78 | Johnson County Estimated | 0 | -100% |
| 78 | Marshall County Estimated | 0 | -100% |
| 78 | Massac County Estimated | 0 | |
| 78 | Mercer County Estimated | 0 | -100% |
| 78 | Piatt County Estimated | 0 | +100% |
| 78 | Pulaski County Estimated | 0 | -100% |
| 78 | Putnam County Estimated | 0 | -100% |
| 78 | Saline County Estimated | 0 | |
| 78 | Scott County Estimated | 0 | -100% |
| 99 | Edgar County Estimated | -1 | -150% |
| 99 | Hardin County Estimated | -1 | |
| 99 | Pope County Estimated | -1 | |
| 102 | Boone County Estimated | -3 | +66.7% |
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
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, 2021) [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, 2021. 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=2021. 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, 2021. 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=2021.
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, 2021 [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=2021 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_illinois_by_2021,
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, 2021}},
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=2021. 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, 2021
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=2021
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/net-international-migration-july-june/illinois-counties?period=2021.
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 -
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 Illinois by net international migration, July to June using official data, and cite the source.
rank_places {"indicator":"net_international_migration_july_june","level":"province","within":"Illinois","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=net_international_migration_july_june&level=province&within=Illinois&limit=10Questions
Which county has the highest net international migration, July to June?
Cook County, with 6,599 in 2021, according to the U.S. Census Bureau.
Which county has the lowest net international migration, July to June?
Boone County, with -3 in 2021.
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.