RANKING · 2010 CENSUS · 61 SHOWN OF 61

Largest Romanian population, Illinois counties · 2010

Illinois counties ranked by the number of residents who are Romanian 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 61 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

RANKPLACESTATEPOPROMANIAN POPULATIONVS 2000

01Cook County, ILIL5,194,62520,601–

02Lake County, ILIL719,3393,416–

03DuPage County, ILIL934,2982,902–

04Kane County, ILIL525,7571,918–

05McHenry County, ILIL317,7511,079–

06Will County, ILIL712,253996–

07Kendall County, ILIL145,470543–

08LaSalle County, ILIL107,773332–

09Madison County, ILIL263,110278–

10Champaign County, ILIL209,972256–

11St. Clair County, ILIL250,708256–

12DeKalb County, ILIL101,835249–

13Winnebago County, ILIL283,674195–

14Rock Island County, ILIL141,869178–

15Peoria County, ILIL178,553144–

16McLean County, ILIL171,419131–

17Woodford County, ILIL38,111130–

18Tazewell County, ILIL130,04984–

19Kankakee County, ILIL105,52575–

20Jackson County, ILIL52,50173–

21Lee County, ILIL32,91462–

22Jasper County, ILIL9,03253–

23Grundy County, ILIL54,05251–

24Stephenson County, ILIL43,22051–

25Sangamon County, ILIL194,17047–

26Clinton County, ILIL37,12846–

27Coles County, ILIL46,60743–

28Ford County, ILIL13,21638–

29Knox County, ILIL47,76736–

30Monroe County, ILIL34,84029–

31Carroll County, ILIL15,41928–

32Perry County, ILIL20,16028–

33Warren County, ILIL16,22226–

34Jo Daviess County, ILIL21,59425–

35Fulton County, ILIL32,90124–

36McDonough County, ILIL25,91624–

37Morgan County, ILIL32,51519–

38Jefferson County, ILIL36,14718–

39Marion County, ILIL36,38217–

40Vermilion County, ILIL71,25917–

41Ogle County, ILIL51,39916–

42Fayette County, ILIL20,79015–

43Williamson County, ILIL67,22514–

44Cass County, ILIL12,46312–

45Henry County, ILIL48,09512–

46Shelby County, ILIL20,57612–

47Mercer County, ILIL15,22910–

48Bureau County, ILIL32,5109–

49Iroquois County, ILIL26,1509–

50Montgomery County, ILIL28,0769–

51Cumberland County, ILIL10,2088–

52Livingston County, ILIL35,0578–

53Macon County, ILIL99,3008–

54Macoupin County, ILIL43,7488–

55Adams County, ILIL64,2676–

56Greene County, ILIL11,3136–

57Hancock County, ILIL16,8033–

58Marshall County, ILIL11,4733–

59Jersey County, ILIL21,1602–

60Stark County, ILIL5,3192–

61Mason County, ILIL12,4111–

SHOWING 1–61 OF 61

Download CSV (full list, 61 rows)

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