Ranking of Illinois Counties By Population with Slovene Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 13.03K people in Illinois with Slovene ancestry. Among all Illinois counties, Cook County had the highest population with Slovene ancestry (3.78K), followed by Will County (2.66K), and DuPage County (1.75K).

The chart and table below shows the top 10 counties with high number of people with Slovene 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 Slovene Ancestry in 2021
Cook County
Will County
DuPage County
Lake County
LaSalle County
Kendall County
Kane County
McHenry County
DeKalb County
Grundy County
Ranking of Illinois Counties By Population with Slovene Ancestry in 2021
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Rank County Population
1 Cook County 3781
2 Will County 2655
3 DuPage County 1753
4 Lake County 1125
5 LaSalle County 683
6 Kendall County 541
7 Kane County 527
8 McHenry County 279
9 DeKalb County 170
10 Grundy County 164
11 Winnebago County 152
12 McLean County 145
13 Bureau County 141
14 Sangamon County 120
15 Champaign County 104
16 Kankakee County 66
17 Whiteside County 45
18 Peoria County 42
18 Rock Island County 42
18 Tazewell County 42
19 Macoupin County 40
20 Jackson County 38
20 Madison County 38
21 Woodford County 35
22 Effingham County 30
23 Macon County 25
24 Putnam County 24
25 Christian County 20
26 Ogle County 19
27 Montgomery County 18
28 Adams County 17
28 Logan County 17
29 Livingston County 16
29 Vermilion County 16
30 Iroquois County 14
30 St. Clair County 14
31 De Witt County 13
32 Jersey County 12
33 Henry County 8
34 Williamson County 7
35 Wabash County 6
36 Stephenson County 5
37 Piatt County 4
37 Stark County 4
38 Hancock County 3
38 Jo Daviess County 3
38 Knox County 3
39 Jefferson County 2
40 Lee County 1
40 Marshall County 1