CensusEasy
RANKING · 2020 CENSUS · 16 SHOWN OF 16

Highest Costa Rican population share, Illinois counties · 2020

Illinois counties ranked by the share of all residents who are Costa Rican origin (2023 American Community Survey). A concentration measure: Costa Rican residents as a percentage of total population. This list covers the 16 counties in Illinois that qualify, ranked against each other statewide.

IllinoisAll statesAll rankings
SAME RANKING BYCitiesStatesMetros
RELATEDLargest Mexican populationHighest Mexican population shareLargest Puerto Rican populationHighest Puerto Rican population shareLargest Cuban populationHighest Cuban population share
YEAR201020202024
Highest Costa Rican population share by state
RANKPLACESTATEPOPCOSTA RICAN SHAREVS 2000
01Woodford County, ILIL38,1110.1%
02Boone County, ILIL53,5680.1%
03Morgan County, ILIL32,5150.1%
04Kane County, ILIL525,7570.1%
05Peoria County, ILIL178,5530.1%
06Lake County, ILIL719,3390.0%
07McLean County, ILIL171,4190.0%
08Sangamon County, ILIL194,1700.0%
09Tazewell County, ILIL130,0490.0%
10Cook County, ILIL5,194,6250.0%
11DuPage County, ILIL934,2980.0%
12Champaign County, ILIL209,9720.0%
13McDonough County, ILIL25,9160.0%
14Will County, ILIL712,2530.0%
15Williamson County, ILIL67,2250.0%
16DeKalb County, ILIL101,8350.0%
SHOWING 1–16 OF 16
Download CSV (full list, 16 rows)

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