RANKING · 2024 ACS · 35 SHOWN OF 35

Largest Peruvian population, Illinois counties

Illinois counties ranked by the number of residents who are Peruvian origin, from the 2024 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, ILIL5,194,6259,835+43%

02DuPage County, ILIL934,298945+71%

03Lake County, ILIL719,339791+22%

04McHenry County, ILIL317,751605+123%

05Will County, ILIL712,253538+34%

06Kane County, ILIL525,757421+0%

07Kendall County, ILIL145,470314+108%

08McLean County, ILIL171,419193–

09Cass County, ILIL12,463160–

10Madison County, ILIL263,110145+1971%

11Champaign County, ILIL209,972144+43%

12Boone County, ILIL53,568136−43%

13St. Clair County, ILIL250,708116+480%

14Stephenson County, ILIL43,22090–

15LaSalle County, ILIL107,77346−56%

16Winnebago County, ILIL283,67446−72%

17Rock Island County, ILIL141,86939+290%

18Marion County, ILIL36,38230–

19McDonough County, ILIL25,91625–

20Ogle County, ILIL51,39922–

21Massac County, ILIL13,50220–

22Woodford County, ILIL38,11120–

23Knox County, ILIL47,76715–

24Macoupin County, ILIL43,74815–

25Whiteside County, ILIL54,12114+56%

26Peoria County, ILIL178,55313–

27Tazewell County, ILIL130,04913–

28Jackson County, ILIL52,50112−83%

29Sangamon County, ILIL194,17010−82%

30Montgomery County, ILIL28,0768–

31Lee County, ILIL32,9146−54%

32Jo Daviess County, ILIL21,5945–

33Union County, ILIL16,6562–

34Jasper County, ILIL9,0321–

35Warren County, ILIL16,2221–

SHOWING 1–35 OF 35

Download CSV (full list, 35 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES