RANKING · 2020 CENSUS · 39 SHOWN OF 39

Highest Bulgarian population share, Illinois counties · 2020

Illinois counties ranked by the share of all residents who are Bulgarian ancestry (2023 American Community Survey). A concentration measure: Bulgarian residents as a percentage of total population. This list covers the 39 counties in Illinois that qualify, ranked against each other statewide.

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

YEAR2010 2020 2024

Highest Bulgarian population share by state

RANKPLACESTATEPOPBULGARIAN SHAREVS 2000

01Jackson County, ILIL52,5010.2%–

02DuPage County, ILIL934,2980.2%–

03Cook County, ILIL5,194,6250.2%–

04Lake County, ILIL719,3390.2%–

05Edgar County, ILIL16,3230.2%–

06Lee County, ILIL32,9140.2%–

07Ogle County, ILIL51,3990.1%–

08White County, ILIL13,2500.1%–

09DeKalb County, ILIL101,8350.1%–

10Grundy County, ILIL54,0520.1%–

11Washington County, ILIL13,5640.1%–

12Kane County, ILIL525,7570.1%–

13Menard County, ILIL11,8630.1%–

14Jefferson County, ILIL36,1470.1%–

15Madison County, ILIL263,1100.1%–

16Clinton County, ILIL37,1280.0%–

17Kendall County, ILIL145,4700.0%–

18Fayette County, ILIL20,7900.0%–

19Will County, ILIL712,2530.0%–

20Christian County, ILIL33,4430.0%–

21Whiteside County, ILIL54,1210.0%–

22Adams County, ILIL64,2670.0%–

23Kankakee County, ILIL105,5250.0%–

24Bureau County, ILIL32,5100.0%–

25McHenry County, ILIL317,7510.0%–

26Macoupin County, ILIL43,7480.0%–

27Tazewell County, ILIL130,0490.0%–

28Logan County, ILIL27,1820.0%–

29Rock Island County, ILIL141,8690.0%–

30Greene County, ILIL11,3130.0%–

31Marion County, ILIL36,3820.0%–

32Peoria County, ILIL178,5530.0%–

33Winnebago County, ILIL283,6740.0%–

34McLean County, ILIL171,4190.0%–

35Sangamon County, ILIL194,1700.0%–

36Champaign County, ILIL209,9720.0%–

37St. Clair County, ILIL250,7080.0%–

38Vermilion County, ILIL71,2590.0%–

39LaSalle County, ILIL107,7730.0%–

SHOWING 1–39 OF 39

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