RANKING · 2010 CENSUS · 25 SHOWN OF 25

Highest Dominican population share, Illinois counties · 2010

Illinois counties ranked by the share of all residents who are Dominican origin (2010 American Community Survey). A concentration measure: Dominican residents as a percentage of total population. This list covers the 25 counties in Illinois that qualify, ranked against each other statewide. The median across all 25 is 0.0%.

Dominican Americans: full group profile →

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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 SHAREVS –

01Cass County, ILIL12,4630.3%–

02Ford County, ILIL13,2160.1%–

03Mercer County, ILIL15,2290.1%–

04Fulton County, ILIL32,9010.1%–

05Cook County, ILIL5,194,6250.1%–

06DeKalb County, ILIL101,8350.1%–

07Lake County, ILIL719,3390.0%–

08DuPage County, ILIL934,2980.0%–

09Jackson County, ILIL52,5010.0%–

10McHenry County, ILIL317,7510.0%–

11Will County, ILIL712,2530.0%–

12Logan County, ILIL27,1820.0%–

13Christian County, ILIL33,4430.0%–

14Macon County, ILIL99,3000.0%–

15McLean County, ILIL171,4190.0%–

16Whiteside County, ILIL54,1210.0%–

17Peoria County, ILIL178,5530.0%–

18Champaign County, ILIL209,9720.0%–

19Kane County, ILIL525,7570.0%–

20Winnebago County, ILIL283,6740.0%–

21Coles County, ILIL46,6070.0%–

22Ogle County, ILIL51,3990.0%–

23Madison County, ILIL263,1100.0%–

24Lee County, ILIL32,9140.0%–

25St. Clair County, ILIL250,7080.0%–

SHOWING 1–25 OF 25

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS