|Population||5,273 (2001 census)|
|Sovereign state||United Kingdom|
Bryncoch South covers some or all of the following areas: Bryncoch, Caewern and Rhydding in the parliamentary constituency of Neath. Bryncoch South is an almost completely developed ward. It is bounded by the wards of Bryncoch North to the north; Cadoxton to the east; Neath North to the southeast; and Dyffryn to the southwest.
In the 2017 local council elections, the electorate turnout was %. The results were:
|Janice Dudley||Plaid Cymru||848||Plaid Cymru hold|
|Chris Williams||Plaid Cymru||808||Plaid Cymru gain|
|Frank Little||Liberal Democrats||102|