111 senators represent the 17 schools of Columbia, and Barnard College, Teachers College, and Union Theological Seminary. The 111 seats are apportioned as follows:
- Constituency
- Administration
- Number of Seats
- 9
- Details
- President, Provost, Dean of the Faculty of the Graduate School of Arts and Sciences, Dean of Columbia College, and five presidential appointees
- Constituency
- Administrative Staff
- Number of Seats
- 2
- Details
- 1 Morningside-Lamont, 1 Columbia University Irving Medical Center
- Constituency
- Alumni
- Number of Seats
- 2
- Details
- Constituency
- Faculty (Tenured and Tenure-track & Off-track (TTOT))
- Number of Seats
- 65
- Details
- 43 Tenured, 17 Tenure-Track and Off-Track, 5 Faculty (tenure status unspecified)
- Constituency
- Libraries
- Number of Seats
- 2
- Details
- Constituency
- Research Officers
- Number of Seats
- 6
- Details
- 4 Professional Research Officers, 1 Postdoctoral Research Officer, 1 Staff Research Officer
- Constituency
- Students
- Number of Seats
- 25
- Details
- 3 Columbia College, 2 Business, 2 Engineering, 1 from each other school