Ranking of Illinois Counties By Population with Finnish Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 16.24K people in Illinois with Finnish ancestry. Among all Illinois counties, Cook County had the highest population with Finnish ancestry (5.99K), followed by Lake County (2.33K), and DuPage County (1.55K).
The chart and table below shows the top 10 counties with high number of people with Finnish 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 Population with Finnish Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Cook County | 5993 |
| 2 | Lake County | 2331 |
| 3 | DuPage County | 1548 |
| 4 | McHenry County | 1040 |
| 5 | Will County | 893 |
| 6 | Kane County | 873 |
| 7 | Winnebago County | 637 |
| 8 | Champaign County | 320 |
| 9 | DeKalb County | 261 |
| 10 | Sangamon County | 193 |
| 11 | Madison County | 156 |
| 12 | Kendall County | 151 |
| 13 | McLean County | 148 |
| 14 | Ogle County | 124 |
| 15 | Rock Island County | 115 |
| 16 | LaSalle County | 114 |
| 17 | Peoria County | 97 |
| 18 | Tazewell County | 90 |
| 19 | Jo Daviess County | 70 |
| 20 | Kankakee County | 65 |
| 21 | Effingham County | 64 |
| 22 | McDonough County | 62 |
| 23 | Fulton County | 60 |
| 23 | Grundy County | 60 |
| 24 | Coles County | 59 |
| 25 | Boone County | 54 |
| 25 | Bureau County | 54 |
| 25 | St. Clair County | 54 |
| 26 | Henry County | 53 |
| 27 | Stephenson County | 49 |
| 28 | Hancock County | 40 |
| 29 | Jackson County | 32 |
| 30 | Vermilion County | 29 |
| 31 | Montgomery County | 28 |
| 31 | Whiteside County | 28 |
| 32 | Williamson County | 26 |
| 33 | Macon County | 24 |
| 34 | Carroll County | 23 |
| 35 | Monroe County | 21 |
| 36 | Adams County | 20 |
| 36 | Fayette County | 20 |
| 37 | Piatt County | 17 |
| 38 | Lee County | 15 |
| 39 | Woodford County | 14 |
| 40 | Perry County | 12 |
| 41 | Franklin County | 11 |
| 42 | Jefferson County | 10 |
| 43 | Livingston County | 8 |
| 44 | Logan County | 7 |
| 44 | Pike County | 7 |
| 45 | Marshall County | 6 |
| 45 | Shelby County | 6 |
| 45 | Warren County | 6 |
| 46 | Douglas County | 5 |
| 46 | Ford County | 5 |
| 47 | Edgar County | 3 |
| 47 | Johnson County | 3 |
| 47 | Marion County | 3 |
| 47 | Pope County | 3 |
| 47 | Saline County | 3 |
| 48 | Clinton County | 2 |
| 48 | Morgan County | 2 |
| 48 | Moultrie County | 2 |
| 48 | Wayne County | 2 |
| 49 | Knox County | 1 |
| 49 | Macoupin County | 1 |
| 49 | Mercer County | 1 |
| 49 | Scott County | 1 |
| 49 | Washington County | 1 |