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RANKING · 2020 CENSUS · 13 SHOWN OF 13

Highest Mongolian population share, Illinois counties · 2020

Illinois counties ranked by the share of all residents who are Mongolian (2020 American Community Survey). A concentration measure: Mongolian residents as a percentage of total population. This list covers the 13 counties in Illinois that qualify, ranked against each other statewide.

Mongolian Americans: full group profile →
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RELATEDLargest Chinese populationHighest Chinese population shareLargest Taiwanese populationHighest Taiwanese population shareLargest Hmong populationHighest Hmong population share
YEAR20202024
Highest Mongolian population share by state
All USCaliforniaColoradoIllinoisNew YorkOhioPennsylvaniaTexasVirginiaWisconsin
RANKPLACESTATEPOPMONGOLIAN SHAREVS –
01Rock Island County, ILIL141,8690.2%–
02St. Clair County, ILIL250,7080.1%–
03Winnebago County, ILIL283,6740.1%–
04Cook County, ILIL5,194,6250.1%–
05Boone County, ILIL53,5680.0%–
06Champaign County, ILIL209,9720.0%–
07DuPage County, ILIL934,2980.0%–
08Sangamon County, ILIL194,1700.0%–
09Will County, ILIL712,2530.0%–
10Madison County, ILIL263,1100.0%–
11McLean County, ILIL171,4190.0%–
12Kane County, ILIL525,7570.0%–
13Lake County, ILIL719,3390.0%–
SHOWING 1–13 OF 13
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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS