RANKING · 2024 ACS · 40 SHOWN OF 40

Largest Dominican population, Illinois counties

Illinois counties ranked by the number of residents who are Dominican origin, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 40 counties in Illinois that qualify, ranked against each other statewide.

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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 POPULATIONVS 2010

01Cook County, ILIL5,194,6255,727+51%

02Lake County, ILIL719,3391,057+205%

03DuPage County, ILIL934,298563+42%

04Winnebago County, ILIL283,674413+638%

05Will County, ILIL712,253359+62%

06Kane County, ILIL525,757308+211%

07Ogle County, ILIL51,399248+4033%

08Kendall County, ILIL145,470157–

09McHenry County, ILIL317,751145+37%

10Champaign County, ILIL209,972138+221%

11Sangamon County, ILIL194,170104–

12Cass County, ILIL12,463102+155%

13Peoria County, ILIL178,55393+98%

14Madison County, ILIL263,11086+378%

15St. Clair County, ILIL250,70881+1925%

16Wayne County, ILIL15,88279–

17Lee County, ILIL32,91460+2900%

18McLean County, ILIL171,41949+9%

19Clinton County, ILIL37,12834–

20Knox County, ILIL47,76730–

21Greene County, ILIL11,31329–

22Rock Island County, ILIL141,86928–

23Whiteside County, ILIL54,12126+73%

24Henry County, ILIL48,09525–

25Macon County, ILIL99,30025−17%

26Vermilion County, ILIL71,25923–

27Effingham County, ILIL34,51920–

28Kankakee County, ILIL105,52520–

29Stephenson County, ILIL43,22020–

30Macoupin County, ILIL43,74817–

31Montgomery County, ILIL28,07614–

32Logan County, ILIL27,18211+22%

33Fulton County, ILIL32,90110−68%

34Brown County, ILIL6,4019–

35Tazewell County, ILIL130,0499–

36Livingston County, ILIL35,0574–

37Henderson County, ILIL5,9843–

38Randolph County, ILIL29,9213–

39Bond County, ILIL16,9592–

40Morgan County, ILIL32,5152–

SHOWING 1–40 OF 40

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES