RANKING · 2024 ACS · 39 SHOWN OF 39

Highest Iranian population share, Illinois counties

Illinois counties ranked by the share of all residents who are Iranian ancestry (2023 American Community Survey). A concentration measure: Iranian 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 Iranian population share by state

RANKPLACESTATEPOPIRANIAN SHAREVS 2000

01Champaign County, ILIL209,9720.2%–

02Jackson County, ILIL52,5010.2%–

03Franklin County, ILIL36,9160.2%–

04Coles County, ILIL46,6070.2%–

05DuPage County, ILIL934,2980.2%–

06Cook County, ILIL5,194,6250.1%–

07Lake County, ILIL719,3390.1%–

08Whiteside County, ILIL54,1210.1%–

09Peoria County, ILIL178,5530.1%–

10Effingham County, ILIL34,5190.1%–

11Kane County, ILIL525,7570.1%–

12Knox County, ILIL47,7670.1%–

13Massac County, ILIL13,5020.1%–

14Clinton County, ILIL37,1280.1%–

15Lee County, ILIL32,9140.1%–

16McDonough County, ILIL25,9160.1%–

17Jo Daviess County, ILIL21,5940.1%–

18Will County, ILIL712,2530.0%–

19Henry County, ILIL48,0950.0%–

20Madison County, ILIL263,1100.0%–

21Sangamon County, ILIL194,1700.0%–

22McLean County, ILIL171,4190.0%–

23DeKalb County, ILIL101,8350.0%–

24Logan County, ILIL27,1820.0%–

25Morgan County, ILIL32,5150.0%–

26Tazewell County, ILIL130,0490.0%–

27Iroquois County, ILIL26,1500.0%–

28Vermilion County, ILIL71,2590.0%–

29Washington County, ILIL13,5640.0%–

30LaSalle County, ILIL107,7730.0%–

31Rock Island County, ILIL141,8690.0%–

32Macon County, ILIL99,3000.0%–

33Kankakee County, ILIL105,5250.0%–

34Adams County, ILIL64,2670.0%–

35Saline County, ILIL22,7720.0%–

36McHenry County, ILIL317,7510.0%–

37St. Clair County, ILIL250,7080.0%–

38Winnebago County, ILIL283,6740.0%–

39Kendall County, ILIL145,4700.0%–

SHOWING 1–39 OF 39

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