Ranking of Illinois Counties By Percentage of Population with German Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 2.15M people in Illinois with German ancestry (16.78% of Illinois population). Among all Illinois counties, Calhoun County had the highest percentage of its population with German ancestry (56.76%), followed by Clinton County (46.55%), and Effingham County (45.89%).
The chart and table below shows the top 10 counties with high percentage of its population having German 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 German Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Calhoun County | 56.76 |
| 2 | Clinton County | 46.55 |
| 3 | Effingham County | 45.89 |
| 4 | Washington County | 45.37 |
| 5 | Monroe County | 43.01 |
| 6 | Jo Daviess County | 42.41 |
| 7 | Woodford County | 40.25 |
| 8 | Jasper County | 36.79 |
| 9 | Stephenson County | 36.73 |
| 10 | Adams County | 36.28 |
| 11 | Putnam County | 35.14 |
| 12 | Jersey County | 35.03 |
| 13 | Livingston County | 33.93 |
| 14 | Richland County | 33.19 |
| 15 | Greene County | 32.03 |
| 16 | Marshall County | 31.92 |
| 17 | Randolph County | 31.63 |
| 18 | Iroquois County | 31.61 |
| 19 | Carroll County | 31.45 |
| 20 | Lee County | 31.07 |
| 21 | Cumberland County | 30.53 |
| 22 | Ogle County | 30.21 |
| 23 | Ford County | 29.88 |
| 24 | Scott County | 29.86 |
| 25 | Mason County | 29.56 |
| 26 | Tazewell County | 28.85 |
| 27 | Logan County | 28.84 |
| 28 | McHenry County | 28.76 |
| 29 | Macoupin County | 28.71 |
| 30 | Wabash County | 28.12 |
| 31 | Whiteside County | 28.08 |
| 32 | Hancock County | 27.99 |
| 33 | Bond County | 27.80 |
| 34 | Madison County | 27.13 |
| 35 | McLean County | 26.70 |
| 36 | Menard County | 26.55 |
| 37 | LaSalle County | 26.52 |
| 38 | Hamilton County | 26.42 |
| 39 | Montgomery County | 25.94 |
| 40 | Stark County | 25.83 |
| 41 | Bureau County | 25.63 |
| 42 | DeKalb County | 25.41 |
| 43 | Douglas County | 25.15 |
| 44 | Piatt County | 25.07 |
| 45 | Hardin County | 24.97 |
| 46 | Boone County | 24.66 |
| 47 | Clay County | 24.60 |
| 48 | Grundy County | 24.56 |
| 49 | Fayette County | 23.97 |
| 50 | Henry County | 23.84 |
| 51 | Schuyler County | 23.46 |
| 52 | Moultrie County | 23.45 |
| 53 | Coles County | 23.07 |
| 54 | Fulton County | 23.05 |
| 55 | Wayne County | 22.99 |
| 56 | Kendall County | 22.88 |
| 57 | Marion County | 22.85 |
| 58 | Pike County | 22.70 |
| 59 | Perry County | 22.49 |
| 60 | Shelby County | 22.18 |
| 61 | Brown County | 21.93 |
| 62 | St. Clair County | 21.76 |
| 63 | White County | 21.49 |
| 64 | Winnebago County | 21.42 |
| 65 | Macon County | 21.33 |
| 66 | Kankakee County | 21.23 |
| 67 | Sangamon County | 21.16 |
| 68 | Peoria County | 21.05 |
| 69 | Clark County | 20.78 |
| 70 | Rock Island County | 20.71 |
| 71 | Lawrence County | 20.65 |
| 72 | Cass County | 20.59 |
| 73 | Union County | 19.74 |
| 74 | Morgan County | 19.71 |
| 75 | Champaign County | 19.42 |
| 76 | McDonough County | 19.34 |
| 77 | Crawford County | 19.32 |
| 78 | De Witt County | 19.24 |
| 79 | Edgar County | 19.14 |
| 80 | Mercer County | 19.01 |
| 81 | Kane County | 18.92 |
| 82 | Christian County | 18.49 |
| 83 | Massac County | 18.46 |
| 84 | Henderson County | 18.23 |
| 85 | Gallatin County | 18.08 |
| 86 | Jackson County | 18.07 |
| 87 | Jefferson County | 17.69 |
| 88 | Will County | 17.63 |
| 89 | DuPage County | 17.50 |
| 90 | Knox County | 16.86 |
| 91 | Warren County | 16.74 |
| 92 | Lake County | 16.70 |
| 93 | Edwards County | 16.49 |
| 94 | Williamson County | 15.91 |
| 95 | Saline County | 15.85 |
| 96 | Vermilion County | 15.09 |
| 97 | Franklin County | 14.42 |
| 98 | Johnson County | 13.24 |
| 99 | Pope County | 12.64 |
| 100 | Alexander County | 12.37 |
| 101 | Pulaski County | 12.11 |
| 102 | Cook County | 9.29 |
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