Ranking of Illinois Counties By Percentage of Population that were Immigrants or Foreign-Born in 2021 (ACS-5Yrs)
Updated on September 27, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, among all Illinois counties, Cook had the highest percentage of its population being immigrants or foreign-born (20.93%), followed by DuPage (19.56%), and Lake (18.65%).
The chart below shows the top 10 counties, and the table below shows the ranking of all Illinois counties.
You can see similar information for other states. You can also see the ranking for all counties in the United States.
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Related Topics: Illinois ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates, 2021 Census.
Ranking of Illinois Counties By Percentage of Population that were Immigrants or Foreign-Born in 2021
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| Rank | County | Perc. of County Population (%) |
|---|---|---|
| 1 | Cook | 20.93 |
| 2 | DuPage | 19.56 |
| 3 | Lake | 18.65 |
| 4 | Kane | 17.09 |
| 5 | Champaign | 12.40 |
| 6 | Will | 12.36 |
| 7 | Cass | 11.43 |
| 8 | Boone | 9.27 |
| 8 | Kendall | 9.27 |
| 9 | Winnebago | 9.01 |
| 10 | McHenry | 8.80 |
| 11 | Rock Island | 8.21 |
| 12 | DeKalb | 7.09 |
| 13 | McLean | 6.94 |
| 14 | Peoria | 6.27 |
| 15 | Jackson | 5.73 |
| 16 | Warren | 5.66 |
| 17 | Kankakee | 4.88 |
| 18 | Grundy | 4.14 |
| 19 | Ogle | 3.73 |
| 20 | Bureau | 3.56 |
| 21 | LaSalle | 3.30 |
| 22 | Iroquois | 3.28 |
| 23 | Knox | 3.14 |
| 24 | Whiteside | 3.11 |
| 25 | St. Clair | 3.06 |
| 26 | Sangamon | 3.03 |
| 27 | Douglas | 2.99 |
| 28 | McDonough | 2.96 |
| 29 | Brown | 2.83 |
| 30 | Lee | 2.54 |
| 31 | Randolph | 2.48 |
| 31 | Stark | 2.48 |
| 32 | Macon | 2.41 |
| 33 | Union | 2.34 |
| 34 | Jo Daviess | 2.29 |
| 35 | Wabash | 2.26 |
| 36 | Effingham | 2.19 |
| 37 | Carroll | 2.17 |
| 37 | Clinton | 2.17 |
| 38 | Vermilion | 2.12 |
| 39 | Madison | 2.11 |
| 40 | Bond | 1.95 |
| 41 | Coles | 1.89 |
| 41 | Williamson | 1.89 |
| 42 | Livingston | 1.86 |
| 43 | Jefferson | 1.85 |
| 44 | Stephenson | 1.83 |
| 45 | De Witt | 1.73 |
| 45 | Woodford | 1.73 |
| 46 | Richland | 1.69 |
| 47 | Ford | 1.68 |
| 48 | Lawrence | 1.65 |
| 48 | Tazewell | 1.65 |
| 49 | Hancock | 1.61 |
| 50 | Henry | 1.59 |
| 51 | Wayne | 1.56 |
| 52 | Fayette | 1.55 |
| 53 | Montgomery | 1.53 |
| 54 | Logan | 1.45 |
| 55 | Mercer | 1.43 |
| 56 | Marshall | 1.41 |
| 56 | Schuyler | 1.41 |
| 57 | Putnam | 1.37 |
| 58 | Adams | 1.33 |
| 59 | Monroe | 1.28 |
| 60 | Jasper | 1.27 |
| 61 | Christian | 1.25 |
| 62 | Menard | 1.24 |
| 63 | Perry | 1.20 |
| 64 | Crawford | 1.18 |
| 64 | Jersey | 1.18 |
| 65 | Fulton | 1.17 |
| 66 | Scott | 1.16 |
| 67 | White | 1.14 |
| 68 | Johnson | 1.13 |
| 69 | Morgan | 1.10 |
| 69 | Washington | 1.10 |
| 70 | Massac | 1.09 |
| 71 | Cumberland | 1.07 |
| 72 | Shelby | 1.04 |
| 73 | Edgar | 1.03 |
| 74 | Pope | 1.02 |
| 75 | Marion | 1.00 |
| 76 | Macoupin | 0.93 |
| 77 | Franklin | 0.89 |
| 77 | Saline | 0.89 |
| 78 | Piatt | 0.88 |
| 79 | Pulaski | 0.85 |
| 80 | Hamilton | 0.80 |
| 81 | Henderson | 0.79 |
| 82 | Moultrie | 0.77 |
| 83 | Pike | 0.75 |
| 84 | Edwards | 0.71 |
| 85 | Clark | 0.67 |
| 86 | Mason | 0.66 |
| 87 | Alexander | 0.51 |
| 87 | Hardin | 0.51 |
| 88 | Calhoun | 0.44 |
| 89 | Greene | 0.35 |
| 90 | Gallatin | 0.30 |
| 91 | Clay | 0.23 |