Islwyn () is a

constituency An electoral district, also known as an election district, legislative district, voting district, constituency, riding, ward, division, or (election) precinct is a subdivision of a larger State (polity), state (a country, administrative region, ...

of the

Senedd The Senedd (; ), officially known as the Welsh Parliament in English and () in Welsh, is the devolved, unicameral legislature of Wales. A democratically elected body, it makes laws for Wales, agrees certain taxes and scrutinises the Welsh Gove ...

. It elects one

Member of the Senedd A Member of the Senedd (MS; plural: ''MSs''; cy, Aelodau o'r Senedd; , plural:) (AS)., group=la is a representative elected to the Senedd (Welsh Parliament; ). There are sixty members, with forty members chosen to represent individual Senedd ...

by the

first past the post In a first-past-the-post electoral system (FPTP or FPP), formally called single-member plurality voting (SMP) when used in single-member districts or informally choose-one voting in contrast to ranked voting, or score voting, voters cast their ...

method of election. Also, however, it is one of eight constituencies in the

South Wales East South Wales East () is an electoral region of the Senedd, consisting of eight constituencies. The region elects 12 members, eight directly elected constituency members and four additional members. The electoral region was first used in 1999, wh ...

electoral region, which elects four additional members, in addition to eight constituency members, to produce a degree of

proportional representation Proportional representation (PR) refers to a type of electoral system under which subgroups of an electorate are reflected proportionately in the elected body. The concept applies mainly to geographical (e.g. states, regions) and political divis ...

for the region as a whole.

Boundaries

The constituency was created for the first election to the Assembly, in 1999, with the name and boundaries of the Islwyn Westminster constituency. The other seven constituencies of the South Wales East electoral region are

Blaenau Gwent Blaenau Gwent (; ) is a county borough in the south-east of Wales. It borders the unitary authority areas of Monmouthshire and Torfaen to the east, Caerphilly to the west and Powys to the north. Its main towns are Abertillery, Brynmawr, Ebbw ...

Caerphilly Caerphilly (, ; cy, Caerffili, ) is a town and community in Wales. It is situated at the southern end of the Rhymney Valley. It is north of Cardiff and northwest of Newport. It is the largest town in Caerphilly County Borough, and lies wit ...

, Merthyr Tydfil and Rhymney,

Monmouth Monmouth ( , ; cy, Trefynwy meaning "town on the Monnow") is a town and community in Wales. It is situated where the River Monnow joins the River Wye, from the Wales–England border. Monmouth is northeast of Cardiff, and west of London. I ...

, Newport East, Newport West and

Torfaen Torfaen (; cy, Torfaen ) is a county borough in the south-east of Wales. Torfaen is bordered by the county of Monmouthshire to the east, the city of Newport to the south, and the county boroughs of Caerphilly and Blaenau Gwent to the south ...

Voting

general election A general election is a political voting election where generally all or most members of a given political body are chosen. These are usually held for a nation, state, or territory's primary legislative body, and are different from by-elections ( ...

s for the Senedd, each voter has two votes. The first vote may be used to vote for a candidate to become the Member of the Senedd for the voter's constituency, elected by the first past the post system. The second vote may be used to vote for a regional

closed party list Closed list describes the variant of party-list systems where voters can effectively only vote for political parties as a whole; thus they have no influence on the party-supplied order in which party candidates are elected. If voters had some in ...

of candidates. Additional member seats are allocated from the lists by the

d'Hondt method The D'Hondt method, also called the Jefferson method or the greatest divisors method, is a method for allocating seats in parliaments among federal states, or in party-list proportional representation systems. It belongs to the class of highest- ...

, with constituency results being taken into account in the allocation.

Assembly Members and Members of the Senedd

Results

Elections in the 2020s

Regional Ballot void votes: 198. Want of an Official Mark (0), Voting for more than ONE party or individual candidate (57), Writing or mark by which the Voter could be identified (0), Unmarked or Void for uncertainty (141)

Elections in the 2010s

Regional ballots rejected at the count: 134

Elections in the 2000s

2003 Electorate: 51,170
Regional ballots rejected: 316

Elections in the 1990s

References

{{DEFAULTSORT:Islwyn (National Assembly For Wales Constituency) Senedd constituencies in the South Wales East electoral region Constituencies established in 1999