Ranking of Illinois Counties By Percentage of Population with Northern European Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 13.63K people in Illinois with Northern European ancestry (0.11% of Illinois population). Among all Illinois counties, Clay County had the highest percentage of its population with Northern European ancestry (0.77%), followed by Champaign County (0.36%), and Washington County (0.30%).
The chart and table below shows the top 10 counties with high percentage of its population having Northern European ancestry.
You can see similar information for other states and for other ancestry groups in Illinois.
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Related Topics: Illinois ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Illinois Counties By Percentage of Population with Northern European Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Clay County | 0.77 |
| 2 | Champaign County | 0.36 |
| 3 | Washington County | 0.30 |
| 4 | Tazewell County | 0.28 |
| 5 | Warren County | 0.27 |
| 6 | Madison County | 0.25 |
| 7 | Logan County | 0.23 |
| 7 | McLean County | 0.23 |
| 8 | Kane County | 0.22 |
| 9 | Hamilton County | 0.20 |
| 9 | Monroe County | 0.20 |
| 10 | Jackson County | 0.19 |
| 11 | Grundy County | 0.18 |
| 11 | McDonough County | 0.18 |
| 11 | Stark County | 0.18 |
| 11 | Williamson County | 0.18 |
| 12 | Morgan County | 0.17 |
| 13 | Stephenson County | 0.16 |
| 14 | Knox County | 0.15 |
| 15 | Marion County | 0.14 |
| 15 | Moultrie County | 0.14 |
| 16 | Adams County | 0.13 |
| 16 | Ford County | 0.13 |
| 16 | Lake County | 0.13 |
| 16 | McHenry County | 0.13 |
| 16 | Massac County | 0.13 |
| 17 | DuPage County | 0.12 |
| 17 | Union County | 0.12 |
| 17 | Winnebago County | 0.12 |
| 18 | Rock Island County | 0.11 |
| 18 | Sangamon County | 0.11 |
| 18 | Woodford County | 0.11 |
| 19 | Piatt County | 0.10 |
| 20 | Kendall County | 0.09 |
| 20 | Peoria County | 0.09 |
| 21 | Cook County | 0.08 |
| 21 | DeKalb County | 0.08 |
| 21 | Jersey County | 0.08 |
| 21 | Mercer County | 0.08 |
| 21 | Will County | 0.08 |
| 22 | Clinton County | 0.07 |
| 22 | Jo Daviess County | 0.07 |
| 22 | Kankakee County | 0.07 |
| 22 | Richland County | 0.07 |
| 22 | St. Clair County | 0.07 |
| 22 | Schuyler County | 0.07 |
| 23 | Carroll County | 0.06 |
| 23 | Christian County | 0.06 |
| 23 | Clark County | 0.06 |
| 23 | De Witt County | 0.06 |
| 23 | Hancock County | 0.06 |
| 23 | Henry County | 0.06 |
| 23 | Lee County | 0.06 |
| 23 | Menard County | 0.06 |
| 23 | Vermilion County | 0.06 |
| 24 | Cass County | 0.05 |
| 24 | Crawford County | 0.05 |
| 24 | Edgar County | 0.05 |
| 24 | Franklin County | 0.05 |
| 24 | Jefferson County | 0.05 |
| 24 | Ogle County | 0.05 |
| 25 | LaSalle County | 0.04 |
| 25 | Perry County | 0.04 |
| 25 | Whiteside County | 0.04 |
| 26 | Cumberland County | 0.03 |
| 26 | Effingham County | 0.03 |
| 26 | Macoupin County | 0.03 |
| 26 | Randolph County | 0.03 |
| 27 | Boone County | 0.02 |
| 27 | Douglas County | 0.02 |
| 27 | Macon County | 0.02 |
| 27 | Marshall County | 0.02 |
| 27 | Mason County | 0.02 |
| 27 | Shelby County | 0.02 |
| 27 | Wabash County | 0.02 |
| 28 | Coles County | 0.01 |
| 28 | Livingston County | 0.01 |
| 29 | Fulton County | 0.003 |
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