# Parliamentary constituencies in West Sussex

The county of West Sussex is divided into 9 parliamentary constituencies - 2 borough constituencies and 7 county constituencies, one of which crosses the county border with East Sussex.

## Constituencies

Conservative †  Labour ‡  Liberal Democrat ¤
| Constituency | Electorate | Majority | Member of Parliament | Nearest opposition | Electoral wards |
| Arundel and South Downs CC | 77,969 | 12,134 | Andrew Griffith † | Richard Allen ¤ | Arun: Arundel and Walberton, Barnham, Felpham East (polling district BHOE) Chichester: Easebourne, Fernhurst, Fittleworth, Goodwood (polling districts GWBX, GWEA, GWED, GWSI and GWUP), Harting, Loxwood, Midhurst, Petworth Horsham: Bramber, Upper Beeding and Woodmancote, Henfield, Pulborough, Coldwaltham and Amberley, Steyning and Ashurst, Storrington and Washington, West Chiltington, Thakeham and Ashington |
| Bognor Regis and Littlehampton CC | 77,565 | 3,651 | Alison Griffiths † | Clare Walsh ‡ | Arun: Aldwick East, Aldwick West, Beach, Brookfield, Courtwick with Toddington, Felpham East (polling districts BFELE1, BFELE2, BFELE3 and BFELE4), Felpham West, Hotham, Marine, Middleton-on-Sea, Orchard, Pevensey, River, Rustington East, Rustington West, Yapton |
| Chichester CC | 78,374 | 12,178 | Jess Brown-Fuller ¤ | Gillian Keegan † | Arun: Bersted, Pagham Chichester: Chichester Central, Chichester East, Chichester North, Chichester South, Chichester West, Goodwood (polling districts GWWD and GWWH), Harbour Villages, Lavant, North Mundham and Tangmere, Selsey South, Sidlesham with Selsey North, Southbourne, The Witterings, Westbourne |
| Crawley BC | 76,575 | 5,235 | Peter Lamb ‡ | Zack Ali † | Crawley: Bewbush and North Broadfield, Broadfield, Gossops Green and North East Broadfield, Ifield, Langley Green and Tushmore, Maidenbower, Northgate and West Green, Pound Hill North and Forge Wood, Pound Hill South and Worth, Southgate, Three Bridges, Tilgate |
| East Grinstead and Uckfield CC (part) | 75,385 | 8,480 | Mims Davies † | Benedict Dempsey ¤ | Lewes: Chailey, Barcombe and Hamsey, Newick, Wivelsfield Mid Sussex: Ardingly and Balcombe, Ashurst Wood, Copthorne and Worth, Crawley Down and Turners Hill, East Grinstead Ashplats, East Grinstead Baldwins, East Grinstead Herontye, East Grinstead Imberhorne, East Grinstead Town, High Weald Wealden: Buxted, Danehill and Fletching, Forest Row, Maresfield, Uckfield East, Uckfield New Town, Uckfield North, Uckfield Ridgewood and Little Horsted |
| East Worthing and Shoreham CC | 74,738 | 9,519 | Tom Rutland ‡ | Leila Williams † | Adur: Buckingham, Churchill, Cokeham, Eastbrook, Hillside, Manor, Marine, Mash Barn, Peverel, Southlands, Southwick Green, St Mary's, St Nicolas, Widewater Worthing: Broadwater, Gaisford, Offington, Selden |
| Horsham CC | 79,150 | 2,517 | John Milne ¤ | Jeremy Quin † | Horsham: Billingshurst, Broadbridge Heath, Colgate and Rusper, Cowfold, Shermanbury and West Grinstead, Denne, Forest, Holbrook East, Holbrook West, Itchingfield, Slinfold and Warnham, Nuthurst and Lower Beeding, Roffey North, Roffey South, Rudgwick, Southwater North, Southwater South and Shipley, Trafalgar |
| Mid Sussex CC | 75,969 | 6,662 | Alison Bennett ¤ | Kristy Adams † | Mid Sussex: Bolney, Burgess Hill Dunstall, Burgess Hill Franklands, Burgess Hill Leylands, Burgess Hill Meeds, Burgess Hill St. Andrews, Burgess Hill Victoria, Cuckfield, Hassocks, Haywards Heath Ashenground, Haywards Heath Bentswood, Haywards Heath Franklands, Haywards Heath Heath, Haywards Heath Lucastes, Hurstpierpoint and Downs, Lindfield |
| Worthing West BC | 77,038 | 3,949 | Beccy Cooper ‡ | Peter Bottomley † | Arun: Angmering and Findon, East Preston, Ferring Worthing: Castle, Central, Durrington, Goring, Heene, Marine, Northbrook, Salvington, Tarring |

## Historic list of constituencies in West Sussex
### Used from 1950 to 1974

* Arundel and Shoreham
* Chichester
* Horsham
* Worthing

### Used from 1974 to 1983

* Arundel
* Chichester
* Horsham and Crawley
* Shoreham
* Worthing

### Used from 1983 to 1997

* Arundel
* Chichester
* Crawley
* Horsham
* Mid Sussex
* Shoreham
* Worthing
The Local Government Act 1972 moved the District of Mid Sussex into West Sussex from East Sussex. This change was put into effect in the Parliamentary constituency boundaries for the 1983 boundary changes.

## Boundary changes
### 2010

Under the Fifth Periodic Review of Westminster constituencies, the Boundary Commission for England decided to retain the existing 8 constituencies in West Sussex, with minor changes to realign constituency boundaries with those of current local government wards, and to reduce the electoral disparity between constituencies.
| Name | Boundaries 1997-2010 | Boundaries 2010–2024 |
| Arundel and South Downs CC Bognor Regis and Littlehampton CC Chichester CC Crawley BC East Worthing and Shoreham CC Horsham CC Mid Sussex CC Worthing West BC | Boundaries 1997-2010 | Boundaries 2010–2024 |

### 2024

See 2023 Periodic Review of Westminster constituencies for further details.
| Name | Boundaries 2010–2024 | Boundaries 2024–present |
| Arundel and South Downs CC Bognor Regis and Littlehampton CC Chichester CC Crawley BC East Worthing and Shoreham CC Horsham CC Mid Sussex CC Worthing West BC East Grinstead and Uckfield CC (2024–present) | Boundaries 2010–2024 | |
For the 2023 Periodic Review of Westminster constituencies, which redrew the constituency map ahead of the 2024 United Kingdom general election, the Boundary Commission for England opted to combine West Sussex with East Sussex as a sub-region of the South East Region, resulting in the creation of a new cross-county boundary constituency named East Grinstead and Uckfield.
The following constituencies were proposed:
Containing electoral wards from Adur
* East Worthing and Shoreham (part)
Containing electoral wards from Arun
* Arundel and South Downs (part)
* Bognor Regis and Littlehampton
* Chichester (part)
* Worthing West (part)
Containing electoral wards from Chichester
* Arundel and South Downs (part)
* Chichester (part)
Containing electoral wards from Crawley
* Crawley
Containing electoral wards from Horsham
* Arundel and South Downs (part)
* Horsham
Containing electoral wards from Mid Sussex
* East Grinstead and Uckfield (also contains parts of Lewes and Wealden Districts in East Sussex)
* Mid Sussex
Containing electoral wards from Worthing
* East Worthing and Shoreham (part)
* Worthing West (part)

## 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 West Sussex in the 2019 general election were as follows:
| Party | Votes | % | Change from 2019 | Seats | Change from 2019 |
| Conservative | 126,025 | 30.8% | 25.5% | 2 | 8 |
| Labour | 102,338 | 25.0% | 2.4% | 3 | 3 |
| Liberal Democrats | 91,349 | 22.3% | 5.8% | 3 | 3 |
| Reform | 60,727 | 14.8% | New | 0 | 0 |
| Greens | 22,841 | 5.6% | 1.8% | 0 | 0 |
| Others | 5,778 | 1.4% | 1.6% | 0 | 0 |
| Total | 409,058 | 100.0 | | 8 | |

### Percentage votes

| Election year | 1983 | 1987 | 1992 | 1997 | 2001 | 2005 | 2010 | 2015 | 2017 | 2019 | 2024 |
| Conservative | 59.9 | 60.0 | 57.3 | 44.7 | 46.0 | 46.7 | 51.8 | 54.2 | 56.8 | 56.3 | 30.8 |
| Labour | 9.8 | 11.8 | 14.6 | 24.3 | 25.9 | 21.3 | 13.1 | 16.1 | 28.8 | 22.6 | 25.0 |
| Liberal Democrat$^1$ | 29.3 | 27.6 | 25.7 | 25.6 | 23.0 | 26.1 | 27.4 | 8.4 | 8.3 | 16.5 | 22.3 |
| Reform | - | - | - | - | - | - | - | - | - | - | 14.8 |
| Green Party | - | * | * | * | * | * | 0.9 | 4.9 | 2.6 | 3.8 | 5.6 |
| UKIP | - | - | - | * | * | * | 5.2 | 15.6 | 2.4 | * | - |
| Other | 1.0 | 0.6 | 2.3 | 5.5 | 5.1 | 6.0 | 1.6 | 0.9 | 0.9 | 0.9 | 1.4 |
$^1$1983 & 1987 - SDP-Liberal Alliance
* Included in Other

### Seats

| Election year | 1983 | 1987 | 1992 | 1997 | 2001 | 2005 | 2010 | 2015 | 2017 | 2019 | 2024 |
| Conservative | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 2 |
| Labour | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 3 |
| Liberal Democrats | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
| Total | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |

### Maps
#### 1885-1910

* 1885
* 1886
* 1892
* 1895
* 1900
* 1906
* Jan 1910
* Dec 1910

#### 1918-1945

* 1918
* 1922
* 1923
* 1924
* 1929
* 1931
* 1935
* 1945

#### 1950-1979

* 1950
* 1951
* 1955
* 1959
* 1964
* 1966
* 1970
* Feb 1974
* Oct 1974
* 1979

#### 1983-present

* 1983
* 1987
* 1992
* 1997
* 2001
* 2005
* 2010
* 2015
* 2017
* 2019
* 2024

## Historical representation by party

A cell marked → (with a different colour background to the preceding cell) indicates that the previous MP continued to sit under a new party name.
The Local Government Act 1972 moved the District of Mid Sussex into West Sussex from East Sussex. This change was put into effect in the Parliamentary constituency boundaries for the 1983 boundary changes.
From 1885 to 2019, only two MPs had won elections who were not members of the Conservative Party: one Liberal MP in 1923 and one Labour MP in 1997, 2001 and 2005. This changed in 2024, with 3 Labour MPs and 3 Liberal Democrat MPs being elected.

### 1885 to 1918

Conservative
| Constituency | 1885 | 1886 | 88 | 1892 | 93 | 94 | 1895 | 1900 | 04 | 1906 | Jan 1910 | Dec 1910 |
| Chichester | C. Gordon-Lennox | C. Gordon-Lennox | W. Gordon-Lennox | W. Gordon-Lennox | W. Gordon-Lennox | Talbot | Talbot | Talbot | Talbot | Talbot | Talbot | Talbot |
| Horsham | Barttelot | Barttelot | Barttelot | Barttelot | Johnstone | Johnstone | Johnstone | Johnstone | Turnour | Turnour | Turnour | Turnour |

### 1918 to 1950

Conservative  Liberal
| Constituency | 1918 | 21 | 1922 | 1923 | 1924 | 1929 | 1931 | 1935 | 42 | 1945 |
| Chichester | Talbot | Bird | Bird | Rudkin | Courtauld | Courtauld | Courtauld | Courtauld | Joynson-Hicks | Joynson-Hicks |
| Horsham and Worthing / Horsham (1945) | Turnour | Turnour | Turnour | Turnour | Turnour | Turnour | Turnour | Turnour | Turnour | Turnour |
| Worthing | | | | | | | | | | Prior-Palmer |

### 1950 to 1983

Conservative
| Constituency | 1950 | 1951 | 54 | 1955 | 58 | 1959 | 1964 | 1966 | 69 | 1970 | 71 | Feb 1974 | Oct 1974 | 1979 |
| Arundel and Shoreham / Shoreham (1974) | Cuthbert | Cuthbert | Kerby | Kerby | Kerby | Kerby | Kerby | Kerby | Kerby | Kerby | Luce | Luce | Luce | Luce |
| Chichester | Joynson-Hicks | Joynson-Hicks | Joynson-Hicks | Joynson-Hicks | Loveys | Loveys | Loveys | Loveys | Chataway | Chataway | Chataway | Chataway | Nelson | Nelson |
| Horsham / Horsham and Crawley (1974) | Turnour | Gough | Gough | Gough | Gough | Gough | Hordern | Hordern | Hordern | Hordern | Hordern | Hordern | Hordern | Hordern |
| Worthing | Prior-Palmer | Prior-Palmer | Prior-Palmer | Prior-Palmer | Prior-Palmer | Prior-Palmer | Higgins | Higgins | Higgins | Higgins | Higgins | Higgins | Higgins | Higgins |
| Arundel | | | | | | | | | | | | Marshall | Marshall | Marshall |

### 1983 to present

Conservative  Labour
| Constituency | 1983 | 1987 | 1992 | 1997 | 2001 | 2005 | 2010 | 2015 | 2017 | 2019 | 2024 |
| Arundel / Arundel and South Downs (1997) | Marshall | Marshall | Marshall | Flight | Flight | Herbert | Herbert | Herbert | Herbert | Griffith | Griffith |
| Chichester | Nelson | Nelson | Nelson | Tyrie | Tyrie | Tyrie | Tyrie | Tyrie | Keegan | Keegan | Brown-Fuller |
| Crawley | Soames | Soames | Soames | Moffatt | Moffatt | Moffatt | Smith | Smith | Smith | Smith | Lamb |
| Horsham | Hordern | Hordern | Hordern | Maude | Maude | Maude | Maude | Quin | Quin | Quin | Milne |
| Shoreham / East Worthing and Shoreham (1997) | Luce | Luce | Stephen | Loughton | Loughton | Loughton | Loughton | Loughton | Loughton | Loughton | Rutland |
| Mid Sussex | Renton | Renton | Renton | Soames | Soames | Soames | Soames | Soames | Soames | Davies | Bennett |
| Worthing / Worthing West (1997) | Higgins | Higgins | Higgins | Bottomley | Bottomley | Bottomley | Bottomley | Bottomley | Bottomley | Bottomley | Cooper |
| Bognor Regis and Littlehampton | | | | Gibb | Gibb | Gibb | Gibb | Gibb | Gibb | Gibb | Griffiths |