The electoral ward consists of Penllergaer, East and West, in the parliamentary constituency of Gower. It is a mainly rural ward with grassland to the south and woodland to the north. It is bordered by the wards of Llangyfelach to the northeast; Penderry to the south; Kingsbridge to the south west; Gorseinon to the west, Penyrheol to the north west.
In the 2008 local council elections, the turnout for Penllergaer was 45.56%. The results were:
Candidate
Party
Votes
Status
Wendy Fitzgerald
Independent
873
Independents hold
Nigel Mark Rees
Labour
56
Paul Werner Sivertsen
Conservative
48
Carol Smith
Green Party
27
In the 2012 local council elections, the turnout for Penllergaer was 42.47%. The results were: