RANKING · 2010 CENSUS · 71 SHOWN OF 71

Largest Finnish population, Illinois counties · 2010

Illinois counties ranked by the number of residents who are Finnish ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 71 counties in Illinois that qualify, ranked against each other statewide.

IllinoisAll states All rankings

SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPFINNISH POPULATIONVS 2000

01Cook County, ILIL5,194,6255,880–

02Lake County, ILIL719,3393,997–

03DuPage County, ILIL934,2981,872–

04Kane County, ILIL525,7571,075–

05Will County, ILIL712,253839–

06Winnebago County, ILIL283,674742–

07McHenry County, ILIL317,751709–

08Madison County, ILIL263,110322–

09DeKalb County, ILIL101,835308–

10Rock Island County, ILIL141,869284–

11Kendall County, ILIL145,470261–

12McLean County, ILIL171,419170–

13Champaign County, ILIL209,972168–

14Boone County, ILIL53,568159–

15Tazewell County, ILIL130,049132–

16Peoria County, ILIL178,553120–

17St. Clair County, ILIL250,708115–

18Whiteside County, ILIL54,121110–

19Ogle County, ILIL51,39993–

20LaSalle County, ILIL107,77388–

21Bureau County, ILIL32,51086–

22Stephenson County, ILIL43,22076–

23Adams County, ILIL64,26773–

24Franklin County, ILIL36,91661–

25Macoupin County, ILIL43,74859–

26Woodford County, ILIL38,11153–

27Knox County, ILIL47,76752–

28Kankakee County, ILIL105,52550–

29Henry County, ILIL48,09548–

30Effingham County, ILIL34,51947–

31Williamson County, ILIL67,22545–

32Jackson County, ILIL52,50143–

33Clinton County, ILIL37,12840–

34Morgan County, ILIL32,51539–

35Grundy County, ILIL54,05238–

36Sangamon County, ILIL194,17038–

37Hancock County, ILIL16,80335–

38Jo Daviess County, ILIL21,59431–

39Livingston County, ILIL35,05730–

40Christian County, ILIL33,44329–

41Marshall County, ILIL11,47329–

42Cass County, ILIL12,46328–

43McDonough County, ILIL25,91625–

44Saline County, ILIL22,77225–

45Richland County, ILIL15,21924–

46Lee County, ILIL32,91418–

47Macon County, ILIL99,30017–

48Jersey County, ILIL21,16016–

49Marion County, ILIL36,38216–

50Shelby County, ILIL20,57616–

51Douglas County, ILIL19,88015–

52Schuyler County, ILIL6,65715–

53Jefferson County, ILIL36,14714–

54Union County, ILIL16,65612–

55Vermilion County, ILIL71,25911–

56Fulton County, ILIL32,9019–

57Logan County, ILIL27,1829–

58Bond County, ILIL16,9598–

59Clark County, ILIL15,1147–

60Warren County, ILIL16,2227–

61Menard County, ILIL11,8636–

62De Witt County, ILIL15,1185–

63Fayette County, ILIL20,7905–

64Moultrie County, ILIL14,3713–

65Piatt County, ILIL16,7913–

66White County, ILIL13,2503–

67Cumberland County, ILIL10,2082–

68Montgomery County, ILIL28,0762–

69Putnam County, ILIL5,6192–

70Crawford County, ILIL18,6481–

71Iroquois County, ILIL26,1501–

SHOWING 1–71 OF 71

Download CSV (full list, 71 rows)

UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES