RANKING · 2020 CENSUS · 35 SHOWN OF 35

Highest Peruvian population share, Illinois counties · 2020

Illinois counties ranked by the share of all residents who are Peruvian origin (2023 American Community Survey). A concentration measure: Peruvian residents as a percentage of total population. This list covers the 35 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

RANKPLACESTATEPOPPERUVIAN SHAREVS 2000

01Warren County, ILIL16,2220.2%–

02Cook County, ILIL5,194,6250.2%–

03Washington County, ILIL13,5640.2%–

04Champaign County, ILIL209,9720.2%–

05McHenry County, ILIL317,7510.1%–

06Stephenson County, ILIL43,2200.1%–

07Fulton County, ILIL32,9010.1%–

08Rock Island County, ILIL141,8690.1%–

09DuPage County, ILIL934,2980.1%–

10Lake County, ILIL719,3390.1%–

11Jackson County, ILIL52,5010.1%–

12Will County, ILIL712,2530.1%–

13Kendall County, ILIL145,4700.1%–

14Kane County, ILIL525,7570.1%–

15Lawrence County, ILIL13,7900.1%–

16Madison County, ILIL263,1100.1%–

17McLean County, ILIL171,4190.0%–

18Macoupin County, ILIL43,7480.0%–

19Winnebago County, ILIL283,6740.0%–

20Woodford County, ILIL38,1110.0%–

21DeKalb County, ILIL101,8350.0%–

22McDonough County, ILIL25,9160.0%–

23Ogle County, ILIL51,3990.0%–

24Grundy County, ILIL54,0520.0%–

25LaSalle County, ILIL107,7730.0%–

26Whiteside County, ILIL54,1210.0%–

27Knox County, ILIL47,7670.0%–

28Bond County, ILIL16,9590.0%–

29Boone County, ILIL53,5680.0%–

30St. Clair County, ILIL250,7080.0%–

31Jasper County, ILIL9,0320.0%–

32Vermilion County, ILIL71,2590.0%–

33Tazewell County, ILIL130,0490.0%–

34Peoria County, ILIL178,5530.0%–

35Sangamon County, ILIL194,1700.0%–

SHOWING 1–35 OF 35

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