RANKING · 2020 CENSUS · 35 SHOWN OF 35

Largest Peruvian population, Illinois counties · 2020

Illinois counties ranked by the number of residents who are Peruvian origin, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 35 counties in Illinois that qualify, ranked against each other statewide.

Peruvian 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

RANKPLACESTATEPOPPERUVIAN POPULATIONVS 2010

01Cook County, ILIL5,194,6259,148+33%

02DuPage County, ILIL934,2981,057+91%

03Lake County, ILIL719,339637−2%

04Will County, ILIL712,253545+36%

05McHenry County, ILIL317,751444+64%

06Kane County, ILIL525,757377−10%

07Champaign County, ILIL209,972322+219%

08Rock Island County, ILIL141,869191+1810%

09Madison County, ILIL263,110135+1829%

10Kendall County, ILIL145,47092−39%

11Winnebago County, ILIL283,67488−46%

12McLean County, ILIL171,41965–

13Stephenson County, ILIL43,22062–

14Jackson County, ILIL52,50151−26%

15Fulton County, ILIL32,90147+236%

16Warren County, ILIL16,22232–

17St. Clair County, ILIL250,70828+40%

18Washington County, ILIL13,56423–

19DeKalb County, ILIL101,83521−87%

20LaSalle County, ILIL107,77318−83%

21Macoupin County, ILIL43,74816–

22Tazewell County, ILIL130,04912–

23Peoria County, ILIL178,55311–

24Lawrence County, ILIL13,7909–

25Sangamon County, ILIL194,1709−84%

26Grundy County, ILIL54,0529–

27Ogle County, ILIL51,3999–

28Whiteside County, ILIL54,1219+0%

29Knox County, ILIL47,7678–

30Woodford County, ILIL38,1118–

31Vermilion County, ILIL71,2597−94%

32Boone County, ILIL53,5686−98%

33McDonough County, ILIL25,9166–

34Bond County, ILIL16,9592–

35Jasper County, ILIL9,0321–

SHOWING 1–35 OF 35

Download CSV (full list, 35 rows)

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