RANKING · 2020 CENSUS · 70 SHOWN OF 70

Highest Finnish population share, Illinois counties · 2020

Illinois counties ranked by the share of all residents who are Finnish ancestry (2020 American Community Survey). A concentration measure: Finnish residents as a percentage of total population. This list covers the 70 counties in Illinois that qualify, ranked against each other statewide.

Finnish Americans: full group profile →

IllinoisAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPFINNISH SHAREVS 2010

01Jo Daviess County, ILIL21,5940.5%+0.4 pts

02Fulton County, ILIL32,9010.4%+0.4 pts

03McHenry County, ILIL317,7510.4%+0.1 pts

04Lake County, ILIL719,3390.3%−0.3 pts

05Montgomery County, ILIL28,0760.3%+0.3 pts

06Boone County, ILIL53,5680.3%−0.0 pts

07DeKalb County, ILIL101,8350.2%−0.1 pts

08Ogle County, ILIL51,3990.2%+0.1 pts

09Winnebago County, ILIL283,6740.2%−0.0 pts

10Hancock County, ILIL16,8030.2%+0.0 pts

11Carroll County, ILIL15,4190.2%–

12McDonough County, ILIL25,9160.2%+0.1 pts

13Stephenson County, ILIL43,2200.2%+0.0 pts

14Ford County, ILIL13,2160.2%–

15Kane County, ILIL525,7570.2%−0.0 pts

16DuPage County, ILIL934,2980.2%−0.0 pts

17Grundy County, ILIL54,0520.1%+0.1 pts

18Bureau County, ILIL32,5100.1%−0.1 pts

19Will County, ILIL712,2530.1%+0.0 pts

20Coles County, ILIL46,6070.1%–

21Kendall County, ILIL145,4700.1%−0.1 pts

22Champaign County, ILIL209,9720.1%+0.0 pts

23LaSalle County, ILIL107,7730.1%+0.0 pts

24Cook County, ILIL5,194,6250.1%+0.0 pts

25Effingham County, ILIL34,5190.1%−0.0 pts

26Jackson County, ILIL52,5010.1%+0.0 pts

27McLean County, ILIL171,4190.1%+0.0 pts

28Rock Island County, ILIL141,8690.1%−0.1 pts

29Monroe County, ILIL34,8400.1%–

30Henry County, ILIL48,0950.1%−0.0 pts

31Tazewell County, ILIL130,0490.1%−0.0 pts

32Madison County, ILIL263,1100.1%−0.0 pts

33Sangamon County, ILIL194,1700.1%+0.1 pts

34Marshall County, ILIL11,4730.1%−0.1 pts

35Piatt County, ILIL16,7910.1%+0.1 pts

36Pope County, ILIL3,6720.1%–

37Union County, ILIL16,6560.1%+0.0 pts

38Whiteside County, ILIL54,1210.1%−0.1 pts

39Jefferson County, ILIL36,1470.1%+0.0 pts

40Franklin County, ILIL36,9160.1%−0.1 pts

41Kankakee County, ILIL105,5250.0%+0.0 pts

42Peoria County, ILIL178,5530.0%−0.0 pts

43Pike County, ILIL14,2310.0%–

44Morgan County, ILIL32,5150.0%−0.1 pts

45Cass County, ILIL12,4630.0%−0.2 pts

46Adams County, ILIL64,2670.0%−0.1 pts

47Vermilion County, ILIL71,2590.0%+0.0 pts

48Williamson County, ILIL67,2250.0%−0.0 pts

49Warren County, ILIL16,2220.0%−0.0 pts

50St. Clair County, ILIL250,7080.0%−0.0 pts

51Macoupin County, ILIL43,7480.0%−0.1 pts

52Fayette County, ILIL20,7900.0%+0.0 pts

53Johnson County, ILIL13,3630.0%–

54Marion County, ILIL36,3820.0%−0.0 pts

55Clinton County, ILIL37,1280.0%−0.1 pts

56Edgar County, ILIL16,3230.0%–

57Knox County, ILIL47,7670.0%−0.1 pts

58Logan County, ILIL27,1820.0%−0.0 pts

59Scott County, ILIL4,8660.0%–

60Perry County, ILIL20,1600.0%–

61Livingston County, ILIL35,0570.0%−0.1 pts

62Moultrie County, ILIL14,3710.0%−0.0 pts

63Christian County, ILIL33,4430.0%−0.1 pts

64Shelby County, ILIL20,5760.0%−0.1 pts

65Macon County, ILIL99,3000.0%−0.0 pts

66Saline County, ILIL22,7720.0%−0.1 pts

67Washington County, ILIL13,5640.0%–

68Mercer County, ILIL15,2290.0%–

69Wayne County, ILIL15,8820.0%–

70Lee County, ILIL32,9140.0%−0.0 pts

SHOWING 1–70 OF 70

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS