Ranking of Illinois Counties By Percentage of Population with Belgian Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 25.28K people in Illinois with Belgian ancestry (0.20% of Illinois population). Among all Illinois counties, Henry County had the highest percentage of its population with Belgian ancestry (6.46%), followed by Rock Island County (3.15%), and Mercer County (1.55%).
The chart and table below shows the top 10 counties with high percentage of its population having Belgian 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 Belgian Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Henry County | 6.46 |
| 2 | Rock Island County | 3.15 |
| 3 | Mercer County | 1.55 |
| 4 | Bureau County | 0.96 |
| 5 | Whiteside County | 0.92 |
| 6 | Lee County | 0.57 |
| 7 | Stephenson County | 0.51 |
| 8 | Monroe County | 0.47 |
| 9 | Stark County | 0.44 |
| 10 | Boone County | 0.43 |
| 11 | Gallatin County | 0.40 |
| 12 | Williamson County | 0.36 |
| 13 | Piatt County | 0.34 |
| 14 | Hancock County | 0.33 |
| 15 | Vermilion County | 0.32 |
| 16 | Kendall County | 0.31 |
| 17 | Hamilton County | 0.30 |
| 18 | Brown County | 0.28 |
| 18 | Scott County | 0.28 |
| 19 | LaSalle County | 0.27 |
| 20 | Iroquois County | 0.25 |
| 20 | Tazewell County | 0.25 |
| 20 | Warren County | 0.25 |
| 21 | Grundy County | 0.24 |
| 21 | Knox County | 0.24 |
| 22 | Carroll County | 0.22 |
| 23 | Livingston County | 0.21 |
| 24 | Jo Daviess County | 0.20 |
| 24 | McHenry County | 0.20 |
| 24 | Woodford County | 0.20 |
| 25 | McLean County | 0.19 |
| 25 | Marshall County | 0.19 |
| 26 | Edwards County | 0.18 |
| 27 | Crawford County | 0.17 |
| 27 | DuPage County | 0.17 |
| 27 | Kane County | 0.17 |
| 28 | DeKalb County | 0.16 |
| 28 | Lake County | 0.16 |
| 28 | Winnebago County | 0.16 |
| 29 | Cass County | 0.15 |
| 29 | Logan County | 0.15 |
| 29 | Ogle County | 0.15 |
| 30 | De Witt County | 0.14 |
| 30 | Montgomery County | 0.14 |
| 31 | Christian County | 0.13 |
| 31 | Lawrence County | 0.13 |
| 31 | Will County | 0.13 |
| 32 | Ford County | 0.12 |
| 32 | Henderson County | 0.12 |
| 32 | Madison County | 0.12 |
| 32 | Putnam County | 0.12 |
| 33 | Bond County | 0.11 |
| 33 | Franklin County | 0.11 |
| 33 | Mason County | 0.11 |
| 33 | Peoria County | 0.11 |
| 34 | Champaign County | 0.10 |
| 34 | Cook County | 0.10 |
| 34 | McDonough County | 0.10 |
| 35 | Clay County | 0.09 |
| 36 | Macon County | 0.08 |
| 37 | Coles County | 0.07 |
| 37 | Kankakee County | 0.07 |
| 37 | Sangamon County | 0.07 |
| 37 | Wayne County | 0.07 |
| 38 | Alexander County | 0.06 |
| 38 | Clark County | 0.06 |
| 38 | Douglas County | 0.06 |
| 38 | Effingham County | 0.06 |
| 38 | Fulton County | 0.06 |
| 38 | Shelby County | 0.06 |
| 39 | Jackson County | 0.04 |
| 39 | Morgan County | 0.04 |
| 40 | Clinton County | 0.03 |
| 40 | Fayette County | 0.03 |
| 40 | Johnson County | 0.03 |
| 40 | Randolph County | 0.03 |
| 40 | Richland County | 0.03 |
| 40 | St. Clair County | 0.03 |
| 41 | Edgar County | 0.02 |
| 41 | Greene County | 0.02 |
| 41 | Jefferson County | 0.02 |
| 41 | Macoupin County | 0.02 |
| 41 | Massac County | 0.02 |
| 41 | White County | 0.02 |