Illinois college football empire map · after Week 4 · Sep 24–26, 2026

Who owned Illinois? Duke.

Duke controls 45.1% of Illinois's land: 41 of its 102 counties. Iowa is next with 25.2% (25 counties, home to 2.12M people). 9 schools split the state at kickoff; 7 remain now. Illinois, Northern Illinois hold none of it.

Illinois counties by owner after Week 4.

Illinois, by empire

EmpireLandCountiesPeople
Duke45.1%412.12M
Iowa25.2%252.12M
Indiana11.7%137.76M
Mississippi State9.1%10442K
Montana State4.1%7129K
Boise State2.6%480K
Notre Dame2.1%265K

Owners of Illinois land, by week

98887

Largest Illinois counties