RANKING · 2010 CENSUS · 102 SHOWN OF 102
Highest American population share, Illinois counties · 2010
Illinois counties ranked by the share of all residents who are American ancestry (2010 American Community Survey). A concentration measure: American residents as a percentage of total population. This list covers the 102 counties in Illinois that qualify, ranked against each other statewide.
American ancestry: full group profile →Highest American population share by state
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RANKPLACESTATEPOPAMERICAN SHAREVS –
SHOWING 1–102 OF 102
UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS