Ranking of Illinois Counties By 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. Among all Illinois counties, Cook County had the highest population with French (except Basque) ancestry (50.01K), followed by DuPage County (15.32K), and Lake County (11.33K).

The chart and table below shows the top 10 counties with high number of people with French (except Basque) ancestry.

You can see similar information for other states and for other ancestry groups in Illinois.

Data Source: US Census Bureau.
Ranking of Illinois Counties By Population with French (except Basque) Ancestry in 2021
Cook County
DuPage County
Lake County
Kane County
Will County
St. Clair County
Kankakee County
Madison County
McHenry County
Sangamon County
Ranking of Illinois Counties By Population with French (except Basque) Ancestry in 2021
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Rank County Population
1 Cook County 50009
2 DuPage County 15323
3 Lake County 11325
4 Kane County 9942
5 Will County 9709
6 St. Clair County 7259
7 Kankakee County 6837
8 Madison County 6728
9 McHenry County 6014
10 Sangamon County 4259
11 Winnebago County 4219
12 Tazewell County 4177
13 Champaign County 4025
14 Peoria County 3245
15 LaSalle County 3012
16 McLean County 2822
17 Rock Island County 2694
18 Kendall County 2428
19 DeKalb County 2313
20 Macon County 2241
21 Iroquois County 2104
22 Williamson County 1844
23 Adams County 1404
24 Randolph County 1370
25 Vermilion County 1350
26 Monroe County 1296
27 Grundy County 1291
28 Boone County 1172
29 Jackson County 1137
30 Clinton County 1126
31 Whiteside County 1047
32 Woodford County 1003
33 Ogle County 998
34 Stephenson County 992
35 Henry County 967
36 Franklin County 918
37 Coles County 861
38 Macoupin County 792
39 Bureau County 790
40 Lee County 777
41 Effingham County 733
42 Morgan County 725
43 Jefferson County 707
44 Christian County 672
45 Fayette County 635
46 Jo Daviess County 610
47 Fulton County 606
48 Knox County 577
49 Marion County 576
50 Shelby County 545
51 Bond County 539
52 Logan County 504
53 Livingston County 480
54 Saline County 479
55 Crawford County 461
56 Perry County 455
57 Montgomery County 444
58 Hancock County 441
59 Clark County 396
60 Ford County 375
61 McDonough County 364
62 Mason County 351
63 Menard County 324
64 Hamilton County 323
65 White County 315
66 Washington County 313
67 Union County 307
68 Lawrence County 286
69 Cumberland County 279
70 Piatt County 276
71 Warren County 271
72 Mercer County 267
73 Richland County 265
74 Marshall County 261
75 Wabash County 248
76 Douglas County 235
77 Schuyler County 215
78 Massac County 209
79 Jasper County 197
80 Edgar County 194
81 Moultrie County 193
82 Gallatin County 190
83 De Witt County 188
84 Carroll County 182
85 Jersey County 172
86 Putnam County 171
87 Greene County 164
88 Wayne County 162
89 Johnson County 146
90 Pike County 126
91 Cass County 116
92 Brown County 99
93 Clay County 98
94 Henderson County 87
95 Stark County 79
96 Pope County 78
97 Calhoun County 65
98 Edwards County 62
99 Pulaski County 27
100 Scott County 17
101 Alexander County 16
102 Hardin County 12