Active Divisions
1st Armored Division, Wiesbaden Germany
1st Cavalry Division, Fort Hood, Texas 
1st Infantry Division, Wurzburg, Germany 
2nd Infantry Division, Camp Red Cloud, Korea
3rd Infantry Division, Fort Stewart, Georgia 
4th Infantry Division, Fort Hood, Texas
10th Mountain Division, Fort Drum, New York 
25th Infantry Division, Schofield Barracks, Hawaii 
82nd Airborne Division, Fort Bragg, North Carolina
101st Airborne Division, Fort Campbell, Kentucky
Integrated Divisions
7th Infantry Division, Fort Carson, Colorado
24th Infantry Division, Fort Riley, Kansas 
National Gaurd Divisions
28th Infantry Division, Harrisburg, Pennsylvania
29th Infantry Division, Fort Belvoir, Virginia
34th Infantry Division, Saint Paul, Minnesota
35th Infantry Division, Fort Leavenworth, Kansas
38th Infantry Division, Indianapolis, Indiana
40th Infantry Division, Los Alamitos, California
42nd Infantry Division, Troy, New York
49th Armored Division, Austin, Texas
Reserve Training Divisions
75th Division (Training Support), Houston, Texas
78th Division (Training Support), Edison, New Jersey
80th Division (Institutional Training), Richmond, Virginia
84th Division (Institutional Training), Milwaukee, Wisconsin
85th Division (Training Support), Arlington Heights, Illinois
87th Division (Training Support), Birmingham, Alabama
91st Division (Training Support), Fort Baker, California
95th Division (Institutional Training), Oklahoma City, Oklahoma
98th Division (Institutional Training), Rochester, New York
100th Division (Institutional Training), Louisville, Kentucky
104th Division (Institutional Training), Vancouver, Washington
108th Division (Institutional Training), Charlotte, North Carolina 
And of course a large amount of non attached units In all realms of combat and combat support.
Active Units, as according to Armies, Commands, and Corps.