Ranking of Illinois Counties By Population with Croatian Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 37.70K people in Illinois with Croatian ancestry. Among all Illinois counties, Cook County had the highest population with Croatian ancestry (16.89K), followed by Will County (4.84K), and DuPage County (4.33K).
The chart and table below shows the top 10 counties with high number of people with Croatian 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 Population with Croatian Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Cook County | 16889 |
| 2 | Will County | 4844 |
| 3 | DuPage County | 4327 |
| 4 | Lake County | 1875 |
| 5 | Madison County | 1435 |
| 6 | Kane County | 1365 |
| 7 | McHenry County | 720 |
| 8 | Kendall County | 633 |
| 9 | St. Clair County | 582 |
| 10 | Peoria County | 506 |
| 11 | Grundy County | 341 |
| 12 | Macoupin County | 329 |
| 13 | Kankakee County | 293 |
| 14 | Winnebago County | 269 |
| 15 | Fulton County | 244 |
| 16 | Sangamon County | 234 |
| 17 | Champaign County | 225 |
| 18 | McLean County | 209 |
| 19 | Rock Island County | 199 |
| 20 | DeKalb County | 162 |
| 21 | LaSalle County | 161 |
| 22 | Monroe County | 114 |
| 23 | Tazewell County | 105 |
| 24 | Marshall County | 104 |
| 25 | Williamson County | 95 |
| 26 | Franklin County | 89 |
| 26 | Jo Daviess County | 89 |
| 27 | Knox County | 83 |
| 28 | Henry County | 65 |
| 29 | Jackson County | 64 |
| 30 | Logan County | 63 |
| 31 | Adams County | 47 |
| 31 | Macon County | 47 |
| 32 | Woodford County | 46 |
| 33 | Carroll County | 43 |
| 34 | Richland County | 41 |
| 35 | Jefferson County | 39 |
| 36 | Henderson County | 36 |
| 37 | Ogle County | 35 |
| 38 | Putnam County | 34 |
| 39 | Marion County | 33 |
| 40 | Montgomery County | 32 |
| 41 | Boone County | 30 |
| 42 | Greene County | 29 |
| 42 | Mercer County | 29 |
| 43 | Clinton County | 28 |
| 44 | Crawford County | 26 |
| 44 | Whiteside County | 26 |
| 45 | Lee County | 25 |
| 45 | McDonough County | 25 |
| 45 | Morgan County | 25 |
| 46 | Christian County | 23 |
| 46 | Coles County | 23 |
| 47 | Stephenson County | 22 |
| 47 | White County | 22 |
| 48 | Vermilion County | 20 |
| 49 | Edgar County | 19 |
| 50 | Bureau County | 17 |
| 50 | Iroquois County | 17 |
| 51 | Perry County | 15 |
| 52 | Wayne County | 14 |
| 53 | Fayette County | 13 |
| 53 | Jersey County | 13 |
| 53 | Shelby County | 13 |
| 54 | Pike County | 12 |
| 55 | Effingham County | 8 |
| 55 | Lawrence County | 8 |
| 55 | Union County | 8 |
| 56 | Piatt County | 7 |
| 56 | Saline County | 7 |
| 57 | Mason County | 5 |
| 57 | Scott County | 5 |
| 58 | Cass County | 3 |
| 58 | Cumberland County | 3 |
| 58 | Johnson County | 3 |
| 59 | Clark County | 2 |
| 59 | Ford County | 2 |
| 59 | Randolph County | 2 |