The Local Government Act 1972 (in force from 1 April 1974) prevents the town council being known in name as a borough council as previously, although the town councillors as charter trustees can still, for example, take part in all of the ceremonial activities (wearing civic outfits), elect mayors (who can wear the chain of office) and organise markets (according to the original royal charter).

[5] This position was filled by Brendan Somers in September 2017, bringing the total number of Plaid councillors up to 12.

[8] The 2012 elections had previously resulted in 11 councillors for Plaid Cymru, 5 for the Welsh Lib Democrats and 3 independents.

Lucy Teresa Huws (Plaid Cymru) was elected for Bronglais Ward in November 2013,[9] replacing Christopher Griffiths.

Brendan Somers (Plaid Cymru) joined for Central Ward in January 2014,[10] replacing Carys Morgan (resigned 2013), and Dr Talat Zafar Chaudhri (Plaid Cymru) joined for Penparcau in September 2015,[11] replacing Dylan Lewis (resigned 2015).

There were subsequently 12 councillors for Plaid Cymru, 4 for the Welsh Liberal Democrats and 3 independents for the remainder of the term.