RANKING · 2024 ACS · 40 SHOWN OF 40

Highest Dominican population share, Illinois counties

Illinois counties ranked by the share of all residents who are Dominican origin (2023 American Community Survey). A concentration measure: Dominican residents as a percentage of total population. This list covers the 40 counties in Illinois that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest Mexican population Highest Mexican population share Largest Puerto Rican population Highest Puerto Rican population share Largest Cuban population Highest Cuban population share

YEAR2010 2020 2024

RANKPLACESTATEPOPDOMINICAN SHAREVS 2000

01Cass County, ILIL12,4630.8%–

02Wayne County, ILIL15,8820.5%–

03Ogle County, ILIL51,3990.5%–

04Greene County, ILIL11,3130.2%–

05Lee County, ILIL32,9140.2%–

06Lake County, ILIL719,3390.1%–

07Winnebago County, ILIL283,6740.1%–

08Brown County, ILIL6,4010.1%–

09Kendall County, ILIL145,4700.1%–

10Cook County, ILIL5,194,6250.1%–

11Clinton County, ILIL37,1280.1%–

12Champaign County, ILIL209,9720.1%–

13Knox County, ILIL47,7670.1%–

14DuPage County, ILIL934,2980.1%–

15Kane County, ILIL525,7570.1%–

16Effingham County, ILIL34,5190.1%–

17Sangamon County, ILIL194,1700.1%–

18Peoria County, ILIL178,5530.1%–

19Henry County, ILIL48,0950.1%–

20Will County, ILIL712,2530.1%–

21Montgomery County, ILIL28,0760.1%–

22Henderson County, ILIL5,9840.0%–

23Whiteside County, ILIL54,1210.0%–

24McHenry County, ILIL317,7510.0%–

25Stephenson County, ILIL43,2200.0%–

26Logan County, ILIL27,1820.0%–

27Macoupin County, ILIL43,7480.0%–

28Madison County, ILIL263,1100.0%–

29St. Clair County, ILIL250,7080.0%–

30Vermilion County, ILIL71,2590.0%–

31Fulton County, ILIL32,9010.0%–

32McLean County, ILIL171,4190.0%–

33Macon County, ILIL99,3000.0%–

34Rock Island County, ILIL141,8690.0%–

35Kankakee County, ILIL105,5250.0%–

36Bond County, ILIL16,9590.0%–

37Livingston County, ILIL35,0570.0%–

38Randolph County, ILIL29,9210.0%–

39Tazewell County, ILIL130,0490.0%–

40Morgan County, ILIL32,5150.0%–

SHOWING 1–40 OF 40

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