RANKING · 2024 ACS · 60 SHOWN OF 60

Highest Romanian population share, Illinois counties

Illinois counties ranked by the share of all residents who are Romanian ancestry (2024 American Community Survey). A concentration measure: Romanian residents as a percentage of total population. This list covers the 60 counties in Illinois that qualify, ranked against each other statewide. The median across all 60 is 0.0%. Biggest climber in the top 100 since 2020: Grundy County, IL, up 36 places to #21.

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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 SHAREVS 2010

01▲2Kendall County, ILIL145,4701.0%+0.5 pts

02▲3DeKalb County, ILIL101,8350.4%+0.2 pts

03▼1Lake County, ILIL719,3390.4%−0.1 pts

04▲2DuPage County, ILIL934,2980.4%+0.1 pts

05▼1Cook County, ILIL5,194,6250.4%0.0 pts

06▲2Kane County, ILIL525,7570.3%−0.1 pts

07▲6Will County, ILIL712,2530.3%+0.1 pts

08▲1Putnam County, ILIL5,6190.2%–

09▲1McHenry County, ILIL317,7510.2%−0.2 pts

10Johnson County, ILIL13,3630.2%–

11White County, ILIL13,2500.2%–

12▲16Peoria County, ILIL178,5530.2%+0.1 pts

13▲8Jackson County, ILIL52,5010.1%0.0 pts

14▲6Whiteside County, ILIL54,1210.1%–

15▲9Coles County, ILIL46,6070.1%0.0 pts

16Douglas County, ILIL19,8800.1%–

17▲18Effingham County, ILIL34,5190.1%–

18▲27Monroe County, ILIL34,8400.1%0.0 pts

19▲11McLean County, ILIL171,4190.1%0.0 pts

20▲19Champaign County, ILIL209,9720.1%−0.1 pts

21▲36Grundy County, ILIL54,0520.1%0.0 pts

22Bond County, ILIL16,9590.1%–

23▼11LaSalle County, ILIL107,7730.1%−0.2 pts

24▲2Boone County, ILIL53,5680.1%–

25▲7Macon County, ILIL99,3000.1%+0.1 pts

26Richland County, ILIL15,2190.1%–

27▲31Edgar County, ILIL16,3230.1%–

28▼27Ford County, ILIL13,2160.1%−0.2 pts

29▼6De Witt County, ILIL15,1180.1%–

30▲18Tazewell County, ILIL130,0490.0%0.0 pts

31▲35Fulton County, ILIL32,9010.0%0.0 pts

32▲32Morgan County, ILIL32,5150.0%0.0 pts

33▲8Adams County, ILIL64,2670.0%0.0 pts

34▲29Christian County, ILIL33,4430.0%–

35▲30Knox County, ILIL47,7670.0%0.0 pts

36▲18Logan County, ILIL27,1820.0%–

37Saline County, ILIL22,7720.0%–

38▲9Randolph County, ILIL29,9210.0%–

39▼14Madison County, ILIL263,1100.0%−0.1 pts

40▼7Carroll County, ILIL15,4190.0%−0.2 pts

41▲3Ogle County, ILIL51,3990.0%0.0 pts

42▼4Rock Island County, ILIL141,8690.0%−0.1 pts

43▲9Stephenson County, ILIL43,2200.0%−0.1 pts

44Piatt County, ILIL16,7910.0%–

45▲1Kankakee County, ILIL105,5250.0%0.0 pts

46▼12St. Clair County, ILIL250,7080.0%−0.1 pts

47▲9Sangamon County, ILIL194,1700.0%0.0 pts

48Livingston County, ILIL35,0570.0%0.0 pts

49▼20Winnebago County, ILIL283,6740.0%0.0 pts

50▲1Jasper County, ILIL9,0320.0%−0.5 pts

51▲10Crawford County, ILIL18,6480.0%–

52Montgomery County, ILIL28,0760.0%0.0 pts

53▼39Lee County, ILIL32,9140.0%−0.2 pts

54Marshall County, ILIL11,4730.0%0.0 pts

55▼28Macoupin County, ILIL43,7480.0%0.0 pts

56▼13Iroquois County, ILIL26,1500.0%0.0 pts

57▼2Williamson County, ILIL67,2250.0%0.0 pts

58▼21Bureau County, ILIL32,5100.0%0.0 pts

59▲3Perry County, ILIL20,1600.0%−0.1 pts

60▼11Vermilion County, ILIL71,2590.0%0.0 pts

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES