Ranking of Illinois Counties By Population with Iranian Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 11.18K people in Illinois with Iranian ancestry. Among all Illinois counties, Cook County had the highest population with Iranian ancestry (6.34K), followed by DuPage County (1.74K), and Lake County (1.04K).

The chart and table below shows the top 10 counties with high number of people with Iranian 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 Iranian Ancestry in 2021
Cook County
DuPage County
Lake County
Champaign County
Will County
Kane County
St. Clair County
Winnebago County
Madison County
Peoria County
Ranking of Illinois Counties By Population with Iranian Ancestry in 2021
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Rank County Population
1 Cook County 6338
2 DuPage County 1736
3 Lake County 1044
4 Champaign County 476
5 Will County 437
6 Kane County 376
7 St. Clair County 65
8 Winnebago County 64
9 Madison County 62
9 Peoria County 62
10 Jackson County 59
11 Kendall County 50
12 Rock Island County 45
13 McLean County 42
14 Whiteside County 40
15 McHenry County 38
16 Richland County 23
17 Clinton County 21
18 Sangamon County 18
19 Tazewell County 17
20 Knox County 16
20 McDonough County 16
21 Henry County 15
22 LaSalle County 14
23 Adams County 13
24 Williamson County 12
25 Wayne County 11
26 DeKalb County 10
27 Stephenson County 9
27 Washington County 9
28 Edwards County 8
28 Morgan County 8
29 Effingham County 7
29 Montgomery County 7
30 Massac County 6
31 Crawford County 3
31 Jersey County 3