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 (2020 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.

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 SHAREVS 2010

01Warren County, ILIL16,2220.2%–

02Cook County, ILIL5,194,6250.2%+0.0 pts

03Washington County, ILIL13,5640.2%–

04Champaign County, ILIL209,9720.2%+0.1 pts

05McHenry County, ILIL317,7510.1%+0.1 pts

06Stephenson County, ILIL43,2200.1%–

07Fulton County, ILIL32,9010.1%+0.1 pts

08Rock Island County, ILIL141,8690.1%+0.1 pts

09DuPage County, ILIL934,2980.1%+0.1 pts

10Lake County, ILIL719,3390.1%−0.0 pts

11Jackson County, ILIL52,5010.1%−0.0 pts

12Will County, ILIL712,2530.1%+0.0 pts

13Kendall County, ILIL145,4700.1%−0.1 pts

14Kane County, ILIL525,7570.1%−0.0 pts

15Lawrence County, ILIL13,7900.1%–

16Madison County, ILIL263,1100.1%+0.0 pts

17McLean County, ILIL171,4190.0%–

18Macoupin County, ILIL43,7480.0%–

19Winnebago County, ILIL283,6740.0%−0.0 pts

20Woodford County, ILIL38,1110.0%–

21DeKalb County, ILIL101,8350.0%−0.1 pts

22McDonough County, ILIL25,9160.0%–

23Ogle County, ILIL51,3990.0%–

24Grundy County, ILIL54,0520.0%–

25LaSalle County, ILIL107,7730.0%−0.1 pts

26Whiteside County, ILIL54,1210.0%+0.0 pts

27Knox County, ILIL47,7670.0%–

28Bond County, ILIL16,9590.0%–

29Boone County, ILIL53,5680.0%−0.4 pts

30St. Clair County, ILIL250,7080.0%+0.0 pts

31Jasper County, ILIL9,0320.0%–

32Vermilion County, ILIL71,2590.0%−0.1 pts

33Tazewell County, ILIL130,0490.0%–

34Peoria County, ILIL178,5530.0%–

35Sangamon County, ILIL194,1700.0%−0.0 pts

SHOWING 1–35 OF 35

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS