Ranking of Illinois Counties By Percentage of Population with Swedish Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 236.84K people in Illinois with Swedish ancestry (1.85% of Illinois population). Among all Illinois counties, Henry County had the highest percentage of its population with Swedish ancestry (8.78%), followed by Mercer County (8.47%), and Boone County (7.52%).
The chart and table below shows the top 10 counties with high percentage of its population having Swedish 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 Swedish Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Henry County | 8.78 |
| 2 | Mercer County | 8.47 |
| 3 | Boone County | 7.52 |
| 4 | Winnebago County | 7.43 |
| 5 | Knox County | 7.03 |
| 6 | Warren County | 5.85 |
| 7 | Ogle County | 5.74 |
| 8 | Bureau County | 5.14 |
| 9 | Putnam County | 5.13 |
| 10 | Henderson County | 4.97 |
| 11 | Rock Island County | 4.93 |
| 12 | DeKalb County | 4.88 |
| 13 | Ford County | 3.79 |
| 13 | Stark County | 3.79 |
| 14 | McHenry County | 3.77 |
| 15 | Jo Daviess County | 3.59 |
| 16 | McDonough County | 3.45 |
| 17 | Marshall County | 2.87 |
| 18 | Kane County | 2.69 |
| 18 | Stephenson County | 2.69 |
| 19 | Carroll County | 2.64 |
| 20 | Whiteside County | 2.59 |
| 21 | DuPage County | 2.33 |
| 22 | Fulton County | 2.24 |
| 23 | Lee County | 2.20 |
| 24 | Lake County | 2.14 |
| 25 | McLean County | 2.10 |
| 26 | Kankakee County | 2.09 |
| 27 | LaSalle County | 1.96 |
| 28 | Grundy County | 1.94 |
| 29 | Will County | 1.90 |
| 30 | Kendall County | 1.81 |
| 31 | Piatt County | 1.78 |
| 32 | Hancock County | 1.70 |
| 33 | Woodford County | 1.69 |
| 34 | Peoria County | 1.62 |
| 35 | Tazewell County | 1.54 |
| 36 | Cass County | 1.43 |
| 37 | Fayette County | 1.38 |
| 38 | Adams County | 1.36 |
| 39 | Iroquois County | 1.31 |
| 40 | Wayne County | 1.29 |
| 41 | Richland County | 1.26 |
| 42 | Cook County | 1.22 |
| 42 | Logan County | 1.22 |
| 42 | Menard County | 1.22 |
| 43 | De Witt County | 1.21 |
| 44 | Champaign County | 1.20 |
| 45 | Edgar County | 1.19 |
| 46 | Montgomery County | 1.18 |
| 47 | Effingham County | 1.16 |
| 48 | Coles County | 1.13 |
| 49 | Hardin County | 1.11 |
| 50 | Mason County | 1.04 |
| 51 | Christian County | 1.03 |
| 52 | Livingston County | 1.02 |
| 53 | Sangamon County | 1.01 |
| 54 | Union County | 1.00 |
| 55 | Macon County | 0.91 |
| 56 | Cumberland County | 0.86 |
| 56 | Monroe County | 0.86 |
| 57 | Franklin County | 0.85 |
| 58 | Hamilton County | 0.84 |
| 59 | Morgan County | 0.83 |
| 60 | Jefferson County | 0.81 |
| 61 | Schuyler County | 0.78 |
| 62 | Moultrie County | 0.76 |
| 62 | Shelby County | 0.76 |
| 63 | Douglas County | 0.75 |
| 64 | Jersey County | 0.72 |
| 64 | Vermilion County | 0.72 |
| 65 | Bond County | 0.70 |
| 66 | Madison County | 0.69 |
| 67 | Massac County | 0.65 |
| 68 | Williamson County | 0.64 |
| 69 | Perry County | 0.62 |
| 70 | Jackson County | 0.60 |
| 71 | Washington County | 0.56 |
| 72 | Clay County | 0.53 |
| 73 | Wabash County | 0.52 |
| 74 | St. Clair County | 0.49 |
| 75 | Brown County | 0.44 |
| 76 | Crawford County | 0.43 |
| 76 | Scott County | 0.43 |
| 77 | Marion County | 0.42 |
| 77 | Randolph County | 0.42 |
| 78 | Macoupin County | 0.38 |
| 79 | Pike County | 0.33 |
| 80 | Pulaski County | 0.32 |
| 80 | White County | 0.32 |
| 81 | Clinton County | 0.31 |
| 82 | Saline County | 0.30 |
| 83 | Greene County | 0.29 |
| 84 | Clark County | 0.28 |
| 85 | Lawrence County | 0.25 |
| 86 | Jasper County | 0.24 |
| 86 | Johnson County | 0.24 |
| 87 | Calhoun County | 0.15 |
| 88 | Edwards County | 0.13 |
| 89 | Pope County | 0.08 |
| 90 | Alexander County | 0.04 |
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