RANKING · 2010 CENSUS · 30 SHOWN OF 30

Highest Peruvian population share, Illinois counties · 2010

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 30 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

01Boone County, ILIL53,5680.4%–

02Scott County, ILIL4,8660.2%–

03DeKalb County, ILIL101,8350.2%–

04Kendall County, ILIL145,4700.1%–

05Cook County, ILIL5,194,6250.1%–

06Vermilion County, ILIL71,2590.1%–

07Jackson County, ILIL52,5010.1%–

08Lake County, ILIL719,3390.1%–

09LaSalle County, ILIL107,7730.1%–

10Williamson County, ILIL67,2250.1%–

11McHenry County, ILIL317,7510.1%–

12Kane County, ILIL525,7570.1%–

13Bureau County, ILIL32,5100.1%–

14Adams County, ILIL64,2670.1%–

15DuPage County, ILIL934,2980.1%–

16Will County, ILIL712,2530.1%–

17Winnebago County, ILIL283,6740.1%–

18Macon County, ILIL99,3000.1%–

19Champaign County, ILIL209,9720.1%–

20Fulton County, ILIL32,9010.0%–

21Lee County, ILIL32,9140.0%–

22Sangamon County, ILIL194,1700.0%–

23Christian County, ILIL33,4430.0%–

24Monroe County, ILIL34,8400.0%–

25Randolph County, ILIL29,9210.0%–

26Whiteside County, ILIL54,1210.0%–

27Saline County, ILIL22,7720.0%–

28St. Clair County, ILIL250,7080.0%–

29Rock Island County, ILIL141,8690.0%–

30Madison County, ILIL263,1100.0%–

SHOWING 1–30 OF 30

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