This had changed by 2015 in the following ways: The Conservatives retained control of the council with a sizeable majority throughout this period, despite losing four councillors.

One was Pablo Dimoglou of Mattishall, who resigned after accusing Council leader William Nunn of an undisclosed connection to the ownership of a local golf club in which the council had invested, before apologising for the allegation and resigning from the group; the other was Thomas Monument of Dereham Withburga, who was found guilty of assault after head-butting and punching an ex girlfriend.

[1][2] One Conservative (John Rogers of Saham Toney) left to sit as a Unionist.

[3] A UKIP councillor, John Newton of Castle Ward in, died in January 2019; his seat was not filled by a by-election due to the close proximity of this election.

[4] There were also a number of Conservative holds in by-elections: Attleborough Queens & Besthorpe in 2016, and Harling & Heathlands and Saham Toney in 2017.