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RANKING · 2024 ACS · 39 SHOWN OF 39

Largest Thai population, Illinois counties

Illinois counties ranked by the number of residents who are Thai, 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 39 counties in Illinois that qualify, ranked against each other statewide. The median across all 39 is 14. Biggest climber in the top 100 since 2020: DeKalb County, IL, up 12 places to #13.

Thai Americans: full group profile →
SAME RANKING BYCitiesStatesMetros
Largest Thai population by state
RANKPLACESTATEPOPTHAI POPULATIONVS 2020
01Cook County, ILIL5,194,6255,011−12%
02DuPage County, ILIL934,298518−36%
03▲1Champaign County, ILIL209,972511+10%
04▲1Kane County, ILIL525,757287−32%
05▼2Will County, ILIL712,253246−49%
06▲3Lake County, ILIL719,339215+47%
07▼1St. Clair County, ILIL250,708180−4%
08▼1Winnebago County, ILIL283,67488−51%
09Lee County, ILIL32,91456–
10Greene County, ILIL11,31350–
11▲5Macon County, ILIL99,30031−9%
12▼4McHenry County, ILIL317,75129−82%
13▲12DeKalb County, ILIL101,83528+180%
14Effingham County, ILIL34,51928–
15LaSalle County, ILIL107,77328–
16Williamson County, ILIL67,22528–
17▲6Madison County, ILIL263,11024+33%
18▼7Sangamon County, ILIL194,17022−77%
19▲2Jackson County, ILIL52,50115−25%
20Livingston County, ILIL35,05714–
21Woodford County, ILIL38,11114–
22Grundy County, ILIL54,05213–
23Hancock County, ILIL16,80312–
24▲3Kankakee County, ILIL105,52511+57%
25Marion County, ILIL36,38210–
26▲2Wayne County, ILIL15,88210+67%
27Franklin County, ILIL36,9167–
28Fulton County, ILIL32,9016–
29▼17Kendall County, ILIL145,4706−92%
30Clark County, ILIL15,1145–
31Fayette County, ILIL20,7905–
32▼12Clinton County, ILIL37,1284−81%
33▼20Rock Island County, ILIL141,8694−93%
34Coles County, ILIL46,6073–
35Stephenson County, ILIL43,2203–
36Jo Daviess County, ILIL21,5941–
37▼8Knox County, ILIL47,7671−75%
38▼28McLean County, ILIL171,4191−99%
39▼4Whiteside County, ILIL54,12110%
SHOWING 1–39 OF 39

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES