RANKING · 2010 CENSUS · 51 SHOWN OF 51

Largest Spaniard population, Illinois counties · 2010

Illinois counties ranked by the number of residents who are Spaniard origin, from the 2010 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 51 counties in Illinois that qualify, ranked against each other statewide. The median across all 51 is 40.

Spaniard Americans: full group profile →

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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

RANKPLACESTATEPOPSPANIARD POPULATIONVS –

01Cook County, ILIL5,194,6254,746–

02DuPage County, ILIL934,298964–

03Kane County, ILIL525,757865–

04Lake County, ILIL719,339689–

05Will County, ILIL712,253629–

06Winnebago County, ILIL283,674337–

07McHenry County, ILIL317,751324–

08St. Clair County, ILIL250,708194–

09Peoria County, ILIL178,553184–

10Kankakee County, ILIL105,525111–

11Kendall County, ILIL145,470109–

12Madison County, ILIL263,110109–

13McLean County, ILIL171,41999–

14Grundy County, ILIL54,05295–

15Champaign County, ILIL209,97290–

16Bureau County, ILIL32,51078–

17Rock Island County, ILIL141,86966–

18Sangamon County, ILIL194,17059–

19Whiteside County, ILIL54,12159–

20Jackson County, ILIL52,50156–

21Macoupin County, ILIL43,74855–

22DeKalb County, ILIL101,83551–

23Ogle County, ILIL51,39949–

24Lee County, ILIL32,91448–

25Macon County, ILIL99,30046–

26Clinton County, ILIL37,12840–

27Williamson County, ILIL67,22540–

28Adams County, ILIL64,26737–

29LaSalle County, ILIL107,77334–

30Monroe County, ILIL34,84026–

31Tazewell County, ILIL130,04926–

32Coles County, ILIL46,60725–

33Stephenson County, ILIL43,22024–

34Henry County, ILIL48,09523–

35Morgan County, ILIL32,51519–

36Washington County, ILIL13,56417–

37Fulton County, ILIL32,90114–

38Christian County, ILIL33,44310–

39Knox County, ILIL47,76710–

40Logan County, ILIL27,18210–

41Jefferson County, ILIL36,1479–

42Iroquois County, ILIL26,1508–

43Livingston County, ILIL35,0577–

44Cass County, ILIL12,4636–

45McDonough County, ILIL25,9166–

46Perry County, ILIL20,1605–

47Clay County, ILIL12,7934–

48Hardin County, ILIL3,5883–

49Henderson County, ILIL5,9843–

50Jo Daviess County, ILIL21,5942–

51Mercer County, ILIL15,2292–

SHOWING 1–51 OF 51

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