Ranking of Illinois Counties By Percentage of Population with French (except Basque) Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 200.73K people in Illinois with French (except Basque) ancestry (1.57% of Illinois population). Among all Illinois counties, Iroquois County had the highest percentage of its population with French (except Basque) ancestry (7.69%), followed by Kankakee County (6.32%), and Randolph County (4.47%).
The chart and table below shows the top 10 counties with high percentage of its population having French (except Basque) 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 French (except Basque) Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Iroquois County | 7.69 |
| 2 | Kankakee County | 6.32 |
| 3 | Randolph County | 4.47 |
| 4 | Hamilton County | 4.03 |
| 5 | Gallatin County | 3.77 |
| 6 | Monroe County | 3.73 |
| 7 | Bond County | 3.21 |
| 8 | Tazewell County | 3.17 |
| 9 | Schuyler County | 3.09 |
| 10 | Clinton County | 3.04 |
| 11 | Putnam County | 3.03 |
| 12 | Fayette County | 2.95 |
| 13 | St. Clair County | 2.81 |
| 14 | Jo Daviess County | 2.77 |
| 15 | Ford County | 2.76 |
| 16 | LaSalle County | 2.74 |
| 16 | Williamson County | 2.74 |
| 17 | Cumberland County | 2.65 |
| 17 | Mason County | 2.65 |
| 18 | Menard County | 2.63 |
| 19 | Woodford County | 2.60 |
| 20 | Shelby County | 2.58 |
| 21 | Clark County | 2.54 |
| 22 | Madison County | 2.53 |
| 23 | Hancock County | 2.49 |
| 24 | Grundy County | 2.47 |
| 25 | Crawford County | 2.45 |
| 26 | Franklin County | 2.41 |
| 27 | Bureau County | 2.37 |
| 28 | DeKalb County | 2.29 |
| 29 | Lee County | 2.26 |
| 29 | Washington County | 2.26 |
| 29 | White County | 2.26 |
| 30 | Marshall County | 2.22 |
| 31 | Stephenson County | 2.21 |
| 32 | Boone County | 2.19 |
| 33 | Morgan County | 2.18 |
| 34 | Sangamon County | 2.17 |
| 34 | Wabash County | 2.17 |
| 35 | Macon County | 2.15 |
| 35 | Perry County | 2.15 |
| 36 | Adams County | 2.13 |
| 37 | Effingham County | 2.12 |
| 37 | Jackson County | 2.12 |
| 38 | Jasper County | 2.11 |
| 39 | Pope County | 2.04 |
| 40 | Saline County | 2.01 |
| 41 | Christian County | 1.97 |
| 42 | Henry County | 1.96 |
| 43 | Champaign County | 1.95 |
| 44 | McHenry County | 1.94 |
| 45 | Ogle County | 1.93 |
| 46 | Kane County | 1.92 |
| 47 | Jefferson County | 1.89 |
| 48 | Whiteside County | 1.87 |
| 49 | Kendall County | 1.86 |
| 49 | Rock Island County | 1.86 |
| 50 | Lawrence County | 1.85 |
| 51 | Coles County | 1.81 |
| 52 | Vermilion County | 1.80 |
| 53 | Logan County | 1.79 |
| 54 | Fulton County | 1.78 |
| 54 | Peoria County | 1.78 |
| 54 | Union County | 1.78 |
| 55 | Macoupin County | 1.75 |
| 56 | Mercer County | 1.69 |
| 57 | Richland County | 1.67 |
| 58 | Piatt County | 1.66 |
| 59 | McLean County | 1.65 |
| 60 | DuPage County | 1.64 |
| 61 | Warren County | 1.61 |
| 62 | Lake County | 1.59 |
| 63 | Brown County | 1.56 |
| 63 | Montgomery County | 1.56 |
| 64 | Marion County | 1.53 |
| 65 | Winnebago County | 1.48 |
| 66 | Massac County | 1.46 |
| 67 | Stark County | 1.45 |
| 68 | Calhoun County | 1.43 |
| 69 | Will County | 1.39 |
| 70 | Greene County | 1.35 |
| 71 | Henderson County | 1.34 |
| 71 | Livingston County | 1.34 |
| 72 | Moultrie County | 1.32 |
| 73 | McDonough County | 1.31 |
| 74 | De Witt County | 1.20 |
| 75 | Douglas County | 1.19 |
| 76 | Carroll County | 1.17 |
| 77 | Knox County | 1.15 |
| 78 | Edgar County | 1.14 |
| 79 | Johnson County | 1.10 |
| 80 | Edwards County | 1.00 |
| 80 | Wayne County | 1.00 |
| 81 | Cook County | 0.95 |
| 82 | Cass County | 0.89 |
| 83 | Pike County | 0.84 |
| 84 | Jersey County | 0.80 |
| 85 | Clay County | 0.74 |
| 86 | Pulaski County | 0.51 |
| 87 | Scott County | 0.35 |
| 88 | Hardin County | 0.32 |
| 89 | Alexander County | 0.29 |
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