Ranking of Illinois Counties By Population with Portuguese Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 10.42K people in Illinois with Portuguese ancestry. Among all Illinois counties, Cook County had the highest population with Portuguese ancestry (3.96K), followed by DuPage County (975), and Lake County (928).
The chart and table below shows the top 10 counties with high number of people with Portuguese 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 Portuguese Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Cook County | 3960 |
| 2 | DuPage County | 975 |
| 3 | Lake County | 928 |
| 4 | Will County | 539 |
| 5 | Sangamon County | 431 |
| 6 | McHenry County | 355 |
| 7 | Kane County | 247 |
| 8 | Madison County | 207 |
| 9 | Morgan County | 195 |
| 10 | Champaign County | 190 |
| 11 | St. Clair County | 176 |
| 12 | LaSalle County | 167 |
| 13 | Whiteside County | 150 |
| 14 | McLean County | 120 |
| 15 | Peoria County | 114 |
| 16 | Jackson County | 106 |
| 17 | Rock Island County | 105 |
| 18 | Coles County | 103 |
| 19 | Cass County | 85 |
| 20 | Adams County | 82 |
| 21 | Williamson County | 69 |
| 21 | Winnebago County | 69 |
| 22 | Piatt County | 57 |
| 23 | Effingham County | 55 |
| 24 | Fulton County | 54 |
| 24 | Greene County | 54 |
| 25 | Macon County | 52 |
| 25 | Monroe County | 52 |
| 26 | Kankakee County | 49 |
| 27 | Ford County | 46 |
| 28 | Tazewell County | 38 |
| 29 | Richland County | 33 |
| 30 | Kendall County | 32 |
| 30 | Washington County | 32 |
| 31 | Knox County | 31 |
| 32 | Montgomery County | 29 |
| 33 | Douglas County | 28 |
| 34 | Mason County | 27 |
| 35 | Henry County | 26 |
| 36 | DeKalb County | 25 |
| 36 | Randolph County | 25 |
| 37 | Stephenson County | 24 |
| 38 | Christian County | 21 |
| 39 | Bureau County | 19 |
| 39 | De Witt County | 19 |
| 40 | Logan County | 18 |
| 40 | Macoupin County | 18 |
| 40 | Scott County | 18 |
| 41 | Ogle County | 17 |
| 42 | Crawford County | 12 |
| 42 | Pike County | 12 |
| 43 | Iroquois County | 10 |
| 43 | Jefferson County | 10 |
| 44 | Clinton County | 9 |
| 44 | Gallatin County | 9 |
| 44 | Hancock County | 9 |
| 45 | Cumberland County | 8 |
| 46 | Grundy County | 7 |
| 46 | Jersey County | 7 |
| 46 | Union County | 7 |
| 47 | Livingston County | 6 |
| 47 | McDonough County | 6 |
| 47 | Menard County | 6 |
| 48 | Marion County | 5 |
| 48 | Warren County | 5 |
| 48 | Woodford County | 5 |
| 49 | Franklin County | 4 |
| 49 | Mercer County | 4 |
| 50 | Wayne County | 3 |
| 51 | Calhoun County | 2 |
| 51 | Carroll County | 2 |
| 51 | Shelby County | 2 |
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