Ranking of Illinois Counties By Percentage of Population with Slavic Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 5.35K people in Illinois with Slavic ancestry (0.04% of Illinois population). Among all Illinois counties, LaSalle County had the highest percentage of its population with Slavic ancestry (0.12%), followed by McHenry County (0.11%), and Jo Daviess County (0.10%).

The chart and table below shows the top 10 counties with high percentage of its population having Slavic 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 Percentage of Population with Slavic Ancestry in 2021
LaSalle County
McHenry County
Jo Daviess County
Edgar County
Kendall County
Moultrie County
Grundy County
Lake County
Livingston County
Will County
Ranking of Illinois Counties By Percentage of Population with Slavic Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 LaSalle County 0.12
2 McHenry County 0.11
3 Jo Daviess County 0.10
4 Edgar County 0.09
4 Kendall County 0.09
4 Moultrie County 0.09
5 Grundy County 0.08
5 Lake County 0.08
5 Livingston County 0.08
5 Will County 0.08
6 Champaign County 0.07
6 Montgomery County 0.07
6 Williamson County 0.07
7 Bureau County 0.06
7 Monroe County 0.06
8 DeKalb County 0.05
8 DuPage County 0.05
8 McLean County 0.05
8 Madison County 0.05
8 Sangamon County 0.05
9 Bond County 0.04
9 Cook County 0.04
9 Effingham County 0.04
9 Kane County 0.04
9 Macon County 0.04
9 Mercer County 0.04
9 Randolph County 0.04
9 Shelby County 0.04
9 Stephenson County 0.04
9 White County 0.04
10 Kankakee County 0.03
10 Marshall County 0.03
10 Peoria County 0.03
10 Rock Island County 0.03
11 Fulton County 0.02
11 Greene County 0.02
11 McDonough County 0.02
11 Macoupin County 0.02
11 Vermilion County 0.02
11 Winnebago County 0.02
12 Clinton County 0.01
12 De Witt County 0.01
12 Lee County 0.01
12 St. Clair County 0.01
12 Tazewell County 0.01
12 Whiteside County 0.01
13 Coles County 0.004