County Wicklow was divided into 6 local electoral areas (LEAs) to elect councillors for a five-year term of office on the electoral system of proportional representation by means of the single transferable vote (PR-STV).

Following the recommendations of the 2018 Local Area Boundary Committee Report, the Bray LEA from the 2014 Wicklow County Council election was divided in two, as its 8 seats exceeded the terms of reference of the report of a maximum of seven seats per LEA.

This was implemented in the initial statutory instrument, but reversed as being contrary to the terms of the Local Government Act 2001.

Several party councillors had quit since 2014 and Gerry O'Neill and John Snell were both re-elected as Independents.

The following members of Wicklow County Council announced in advance of the poll that they would not be seeking re-election: ^ *: Outgoing councillor elected in 2014.