RANKING · 2024 ACS · 35 SHOWN OF 35

Highest Peruvian population share, Illinois counties

Illinois counties ranked by the share of all residents who are Peruvian origin (2024 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 →

IllinoisAll states All rankings

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

01Cass County, ILIL12,4631.3%–

02Boone County, ILIL53,5680.3%−0.2 pts

03Kendall County, ILIL145,4700.2%+0.1 pts

04Stephenson County, ILIL43,2200.2%–

05McHenry County, ILIL317,7510.2%+0.1 pts

06Cook County, ILIL5,194,6250.2%+0.1 pts

07Massac County, ILIL13,5020.1%–

08McLean County, ILIL171,4190.1%–

09Lake County, ILIL719,3390.1%+0.0 pts

10DuPage County, ILIL934,2980.1%+0.0 pts

11McDonough County, ILIL25,9160.1%–

12Kane County, ILIL525,7570.1%−0.0 pts

13Marion County, ILIL36,3820.1%–

14Will County, ILIL712,2530.1%+0.0 pts

15Champaign County, ILIL209,9720.1%+0.0 pts

16Madison County, ILIL263,1100.1%+0.1 pts

17Woodford County, ILIL38,1110.1%–

18St. Clair County, ILIL250,7080.0%+0.0 pts

19Ogle County, ILIL51,3990.0%–

20LaSalle County, ILIL107,7730.0%−0.0 pts

21Macoupin County, ILIL43,7480.0%–

22Knox County, ILIL47,7670.0%–

23Montgomery County, ILIL28,0760.0%–

24Rock Island County, ILIL141,8690.0%+0.0 pts

25Whiteside County, ILIL54,1210.0%+0.0 pts

26Jo Daviess County, ILIL21,5940.0%–

27Jackson County, ILIL52,5010.0%−0.1 pts

28Lee County, ILIL32,9140.0%−0.0 pts

29Winnebago County, ILIL283,6740.0%−0.0 pts

30Union County, ILIL16,6560.0%–

31Jasper County, ILIL9,0320.0%–

32Tazewell County, ILIL130,0490.0%–

33Peoria County, ILIL178,5530.0%–

34Warren County, ILIL16,2220.0%–

35Sangamon County, ILIL194,1700.0%−0.0 pts

SHOWING 1–35 OF 35

Download CSV (full list, 35 rows)

UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES