Avon was abolished in 1996 both as a county council and a ceremonial county, being succeeded by the unitary authorities of Bath and North East Somerset, Bristol, North Somerset, and South Gloucestershire. The constituency boundaries used up to the 2005 United Kingdom general election were drawn up when the county still existed. For the review which came into effect for the 2010 general election, the four authorities were considered separately, entailing four seats for Bristol, three for South Gloucestershire and two each for Bath and North East Somerset and North Somerset.

For the 2023 Periodic Review of Westminster constituencies, coming into effect for the 2024 United Kingdom general election, the Boundary Commission for England considered the area comprising the former county of Avon, together with Devon (including Plymouth and Torbay) and Somerset as a sub-region of the South West Region.

The area is divided into 13 parliamentary constituencies – 6 borough constituencies and 7 county constituencies, including two which cross local authority boundaries with Somerset.

Constituencies

{| class="wikitable sortable"

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!rowspan=1|Constituency

!rowspan=1|Electorate

!rowspan=1|Majority

!colspan=2 class=unsortable|Member of Parliament

The following seats were proposed:

Containing electoral wards from Bath and North East Somerset

  • Bath
  • Frome and East Somerset (part also in the Somerset District of Mendip)
  • North East Somerset and Hanham (part)

Containing electoral wards in Bristol

  • Bristol Central
  • Bristol East
  • Bristol North East (part)
  • Bristol North West
  • Bristol South

Containing electoral wards in North Somerset

  • North Somerset
  • Wells and Mendip Hills (parts also in the Somerset Districts of Mendip and Sedgemoor)
  • Weston-super-Mare

Containing electoral wards in South Gloucestershire

  • Filton and Bradley Stoke
  • North East Somerset and Hanham (part)
  • North East Bristol (part)
  • Thornbury and Yate

2010

Under the Fifth Periodic Review of Westminster constituencies, the Boundary Commission for England decided to increase the number of seats which covered "Avon" from 10 to 11, with the creation of Filton and Bradley Stoke. This resulted in major changes to Kingswood and three of the four Bristol constituencies. A further three constituencies were renamed.

{| class="wikitable"

!style="background-color:#ff9999"|Former name!! style="background-color:#ff9999" |Boundaries 1997–2010!! style="background-color:#ff9999" |Former name!! style="background-color:#ff9999" |Boundaries 2010–2024

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  1. Bath CC
  2. Bristol East BC
  3. Bristol North West BC
  4. Bristol South BC
  5. Bristol West BC
  6. Kingswood BC
  7. Northavon CC
  8. Wansdyke CC
  9. Weston-super-Mare CC
  10. Woodspring CC

|left|Parliamentary constituencies in Avon

|

  1. Bath BC
  2. Bristol East BC
  3. Bristol North West BC
  4. Bristol South BC
  5. Bristol West BC
  6. Filton and Bradley Stoke CC
  7. Kingswood BC
  8. North East Somerset CC
  9. North Somerset CC
  10. Thornbury and Yate CC
  11. Weston-super-Mare CC

|left|Proposed Revised constituencies in Avon

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|}

(The maps on this page do not show the nominal extensions of several constituencies over the waters of the Bristol Channel.)

Other former constituencies in the area were:

  • Bristol Central abolished 1974
  • Bristol South East abolished 1983
  • Bristol North East abolished 1983
  • South Gloucestershire abolished 1983

Results history

Primary data source: House of Commons research briefing – General election results from 1918 to 2019

2024

The number of votes cast for each political party who fielded candidates in constituencies comprising Avon in the 2024 general election were as follows: