Corby Borough Council was elected every four years. The council was abolished in 2021, with the area becoming part of North Northamptonshire.
From the first elections to the council in 1973 until its abolition in 2021, political control of the council was held by the following parties:
| Party in control | Years | |
|---|---|---|
| 19731976 | ||
| 19761979 | ||
| 19792021 | ||
The leaders of the council from 2005 until the council's abolition in 2021 were:
| Councillor | Party | From | To | |
|---|---|---|---|---|
| Pat Fawcett[1] | 2005 | Dec 2011 | ||
| Tom Beattie[2] [3] | 8 Dec 2011 | 31 Mar 2021 | ||
The scheduled 2019 elections were cancelled due to the creation of the new North Northamptonshire unitary authority in 2021.
| width=32 | width=90 | Overall control | width=87 align="center" | Labour | width=87 align="center" | Conservative | width=87 align="center" | Lib Dem | width=87 align="center" | Independent | |||||
| 2015 | Labour | 24 | 5 | - | - | ||||||||||
| 2011 | Labour | 22 | 4 | 3 | - | ||||||||||
| 2007 | Labour | 16 | 8 | 5 | - | ||||||||||
| 2003 | Labour | 18 | 9 | 2 | - | ||||||||||
| 1999 | Labour | 27 | 1 | 1 | - | ||||||||||
| 1995 | Labour | 24 | 1 | 2 | - | ||||||||||
| 1991 | Labour | 23 | 1 | 2 | 1 | ||||||||||
| 1987 | Labour | 23 | 2 | - | 2 | ||||||||||
| 1983 | Labour | 24 | 3 | - | - | ||||||||||
| 1979 | Labour | 23 | 3 | - | 1 | ||||||||||
| 1976 | Conservative | 10 | 16 | - | 1 | ||||||||||
| 1973 | Labour | 29 | 1 | - | 3 |