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 (2020 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 2010

01Jackson County, ILIL52,5010.2%+0.2 pts

02DuPage County, ILIL934,2980.2%+0.1 pts

03Cook County, ILIL5,194,6250.2%+0.0 pts

04Lake County, ILIL719,3390.2%+0.0 pts

05Edgar County, ILIL16,3230.2%+0.1 pts

06Lee County, ILIL32,9140.2%–

07Ogle County, ILIL51,3990.1%–

08White County, ILIL13,2500.1%–

09DeKalb County, ILIL101,8350.1%+0.0 pts

10Grundy County, ILIL54,0520.1%–

11Washington County, ILIL13,5640.1%–

12Kane County, ILIL525,7570.1%+0.0 pts

13Menard County, ILIL11,8630.1%–

14Jefferson County, ILIL36,1470.1%−0.0 pts

15Madison County, ILIL263,1100.1%−0.1 pts

16Clinton County, ILIL37,1280.0%–

17Kendall County, ILIL145,4700.0%–

18Fayette County, ILIL20,7900.0%–

19Will County, ILIL712,2530.0%−0.0 pts

20Christian County, ILIL33,4430.0%–

21Whiteside County, ILIL54,1210.0%–

22Adams County, ILIL64,2670.0%–

23Kankakee County, ILIL105,5250.0%+0.0 pts

24Bureau County, ILIL32,5100.0%–

25McHenry County, ILIL317,7510.0%+0.0 pts

26Macoupin County, ILIL43,7480.0%–

27Tazewell County, ILIL130,0490.0%−0.0 pts

28Logan County, ILIL27,1820.0%–

29Rock Island County, ILIL141,8690.0%+0.0 pts

30Greene County, ILIL11,3130.0%–

31Marion County, ILIL36,3820.0%−0.0 pts

32Peoria County, ILIL178,5530.0%−0.0 pts

33Winnebago County, ILIL283,6740.0%+0.0 pts

34McLean County, ILIL171,4190.0%+0.0 pts

35Sangamon County, ILIL194,1700.0%+0.0 pts

36Champaign County, ILIL209,9720.0%−0.0 pts

37St. Clair County, ILIL250,7080.0%−0.1 pts

38Vermilion County, ILIL71,2590.0%–

39LaSalle County, ILIL107,7730.0%−0.0 pts

SHOWING 1–39 OF 39

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS