Indiana and Louisville remained the top two teams in the county in the AP Top-25 poll.
Kentucky, who lost to Duke last week, fell to No. 8.
Ohio State and Michigan each moved up one slot to No. 3 and No. 4 respectively.
Duke climbed from No. 9 to No. 5 with a 263-point gain.
Oklahoma State and Minnesota entered the rankings, replacing Wisconsin and Notre Dame.
The Big Ten has five teams in the top-25, followed by the Big East with four.