RANKING · 2024 ACS · 66 SHOWN OF 66

Highest Finnish population share, Illinois counties

Illinois counties ranked by the share of all residents who are Finnish ancestry (2024 American Community Survey). A concentration measure: Finnish residents as a percentage of total population. This list covers the 66 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, ILIL21,5940.4%+0.2 pts

02Carroll County, ILIL15,4190.3%–

03Lake County, ILIL719,3390.3%−0.2 pts

04Stephenson County, ILIL43,2200.3%+0.2 pts

05Cass County, ILIL12,4630.3%+0.1 pts

06McDonough County, ILIL25,9160.2%+0.2 pts

07Iroquois County, ILIL26,1500.2%+0.2 pts

08DeKalb County, ILIL101,8350.2%−0.1 pts

09Woodford County, ILIL38,1110.2%+0.1 pts

10McHenry County, ILIL317,7510.2%−0.0 pts

11Grundy County, ILIL54,0520.2%+0.1 pts

12Winnebago County, ILIL283,6740.1%−0.1 pts

13Ogle County, ILIL51,3990.1%−0.0 pts

14DuPage County, ILIL934,2980.1%−0.1 pts

15Kane County, ILIL525,7570.1%−0.1 pts

16Fayette County, ILIL20,7900.1%+0.1 pts

17Pope County, ILIL3,6720.1%–

18White County, ILIL13,2500.1%+0.1 pts

19Warren County, ILIL16,2220.1%+0.1 pts

20Fulton County, ILIL32,9010.1%+0.1 pts

21Boone County, ILIL53,5680.1%−0.2 pts

22McLean County, ILIL171,4190.1%+0.0 pts

23Brown County, ILIL6,4010.1%–

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

25Peoria County, ILIL178,5530.1%+0.0 pts

26LaSalle County, ILIL107,7730.1%+0.0 pts

27Rock Island County, ILIL141,8690.1%−0.1 pts

28Lee County, ILIL32,9140.1%+0.0 pts

29Will County, ILIL712,2530.1%−0.0 pts

30Macoupin County, ILIL43,7480.1%−0.1 pts

31Henry County, ILIL48,0950.1%−0.0 pts

32Adams County, ILIL64,2670.1%−0.0 pts

33Champaign County, ILIL209,9720.1%−0.0 pts

34Marion County, ILIL36,3820.1%+0.0 pts

35Sangamon County, ILIL194,1700.1%+0.0 pts

36Vermilion County, ILIL71,2590.1%+0.0 pts

37Randolph County, ILIL29,9210.1%–

38Marshall County, ILIL11,4730.1%−0.2 pts

39Tazewell County, ILIL130,0490.0%−0.1 pts

40Hancock County, ILIL16,8030.0%−0.1 pts

41Kendall County, ILIL145,4700.0%−0.2 pts

42Shelby County, ILIL20,5760.0%−0.0 pts

43Macon County, ILIL99,3000.0%+0.0 pts

44Jefferson County, ILIL36,1470.0%−0.0 pts

45Union County, ILIL16,6560.0%−0.0 pts

46Pike County, ILIL14,2310.0%–

47Madison County, ILIL263,1100.0%−0.1 pts

48Bureau County, ILIL32,5100.0%−0.2 pts

49Mason County, ILIL12,4110.0%–

50Clinton County, ILIL37,1280.0%−0.1 pts

51Whiteside County, ILIL54,1210.0%−0.2 pts

52Jackson County, ILIL52,5010.0%−0.0 pts

53Perry County, ILIL20,1600.0%–

54Monroe County, ILIL34,8400.0%–

55Kankakee County, ILIL105,5250.0%−0.0 pts

56Scott County, ILIL4,8660.0%–

57Douglas County, ILIL19,8800.0%−0.1 pts

58Knox County, ILIL47,7670.0%−0.1 pts

59Franklin County, ILIL36,9160.0%−0.1 pts

60Livingston County, ILIL35,0570.0%−0.1 pts

61St. Clair County, ILIL250,7080.0%−0.0 pts

62Mercer County, ILIL15,2290.0%–

63Morgan County, ILIL32,5150.0%−0.1 pts

64Edgar County, ILIL16,3230.0%–

65Coles County, ILIL46,6070.0%–

66Montgomery County, ILIL28,0760.0%−0.0 pts

SHOWING 1–66 OF 66

Download CSV (full list, 66 rows)

UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES