Ranking of Illinois Counties By Population with English Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 767.42K people in Illinois with English ancestry. Among all Illinois counties, Cook County had the highest population with English ancestry (168.77K), followed by DuPage County (55.61K), and Lake County (41.39K).
The chart and table below shows the top 10 counties with high number of people with English 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 English Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Cook County | 168774 |
| 2 | DuPage County | 55610 |
| 3 | Lake County | 41390 |
| 4 | Will County | 35644 |
| 5 | Kane County | 32999 |
| 6 | Madison County | 27293 |
| 7 | McHenry County | 23837 |
| 8 | Winnebago County | 22626 |
| 9 | Sangamon County | 21243 |
| 10 | McLean County | 19269 |
| 11 | St. Clair County | 18626 |
| 12 | Champaign County | 17230 |
| 13 | Peoria County | 16876 |
| 14 | Tazewell County | 14996 |
| 15 | Macon County | 10461 |
| 16 | Rock Island County | 10452 |
| 17 | LaSalle County | 9415 |
| 18 | DeKalb County | 9103 |
| 19 | Williamson County | 8505 |
| 20 | Kendall County | 7659 |
| 21 | Kankakee County | 6840 |
| 22 | Vermilion County | 5611 |
| 23 | Jackson County | 5549 |
| 24 | Adams County | 5464 |
| 25 | Grundy County | 5391 |
| 26 | Knox County | 5085 |
| 27 | Coles County | 4803 |
| 28 | Fulton County | 4715 |
| 29 | Franklin County | 4611 |
| 30 | Whiteside County | 4596 |
| 31 | Macoupin County | 4554 |
| 32 | Henry County | 4515 |
| 33 | Ogle County | 4476 |
| 34 | Jefferson County | 4154 |
| 35 | Marion County | 3944 |
| 36 | Morgan County | 3917 |
| 37 | Woodford County | 3711 |
| 38 | Stephenson County | 3700 |
| 39 | Lee County | 3667 |
| 40 | Bureau County | 3665 |
| 41 | Boone County | 3605 |
| 41 | Christian County | 3605 |
| 42 | Livingston County | 3315 |
| 43 | Monroe County | 3179 |
| 44 | Saline County | 2986 |
| 45 | Montgomery County | 2942 |
| 46 | McDonough County | 2936 |
| 47 | Logan County | 2910 |
| 48 | Iroquois County | 2648 |
| 49 | Effingham County | 2584 |
| 50 | Piatt County | 2417 |
| 51 | Hancock County | 2349 |
| 52 | Jo Daviess County | 2257 |
| 53 | Edgar County | 2241 |
| 54 | Clark County | 2121 |
| 54 | Jersey County | 2121 |
| 55 | Randolph County | 2110 |
| 56 | Shelby County | 2088 |
| 57 | Wayne County | 2082 |
| 58 | Douglas County | 2068 |
| 59 | Perry County | 2054 |
| 60 | Crawford County | 1961 |
| 61 | Union County | 1839 |
| 62 | Clinton County | 1834 |
| 63 | Moultrie County | 1819 |
| 64 | De Witt County | 1809 |
| 65 | Bond County | 1798 |
| 66 | Fayette County | 1721 |
| 67 | White County | 1688 |
| 68 | Mason County | 1562 |
| 69 | Wabash County | 1542 |
| 70 | Menard County | 1522 |
| 71 | Massac County | 1476 |
| 72 | Carroll County | 1472 |
| 73 | Pike County | 1462 |
| 74 | Lawrence County | 1439 |
| 75 | Ford County | 1386 |
| 76 | Cumberland County | 1303 |
| 77 | Warren County | 1275 |
| 78 | Mercer County | 1262 |
| 79 | Marshall County | 1211 |
| 80 | Edwards County | 1207 |
| 81 | Hamilton County | 1199 |
| 82 | Cass County | 1179 |
| 83 | Richland County | 1167 |
| 84 | Johnson County | 1155 |
| 85 | Washington County | 1072 |
| 86 | Greene County | 1053 |
| 87 | Clay County | 982 |
| 88 | Jasper County | 840 |
| 89 | Schuyler County | 804 |
| 90 | Hardin County | 753 |
| 91 | Stark County | 748 |
| 92 | Gallatin County | 705 |
| 93 | Scott County | 634 |
| 94 | Henderson County | 617 |
| 95 | Brown County | 559 |
| 96 | Putnam County | 503 |
| 97 | Pulaski County | 378 |
| 98 | Pope County | 352 |
| 99 | Alexander County | 307 |
| 100 | Calhoun County | 227 |
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