Sittingbourne and Sheppey

Sittingbourne and Sheppey is a constituency in Kent in South East England, within the Borough of Swale. It covers the town of Sittingbourne, which has a population of around 57,000,^[2] its nearby villages of Iwade and Newington, and the Isle of Sheppey which includes the towns of Sheerness, Minster and Queenborough and the villages of Halfway Houses and Eastchurch.

Sittingbourne is an industrial town which grew rapidly during the late 19th century as a centre for brickmaking, barge-building and paper manufacturing. Much of this industry has declined and today the town has high levels of deprivation, although there are some affluent suburbs in the south and the surrounding villages are generally wealthy. The Isle of Sheppey is a popular tourist destination with numerous caravan parks and holiday homes. Like many English coastal towns, this area has suffered from the decline in domestic tourism and is also highly-deprived, especially in the commercial port town of Sheerness.^[3] House prices across the constituency are generally lower than the UK average and considerably lower than the rest of South East England.^[4]

Residents of Sittingbourne and Sheppey have a similar age profile to the rest of the country.^[5] They have average levels of income, homeownership and child poverty.^[4][6] Residents generally have low levels of education and a high proportion work in the retail, manufacturing and transport sectors.^[4][7] The percentage claiming unemployment benefits is in line with the UK-wide rate.^[6] White people made up 93% of the population at the 2021 census.^[8]

At the local district council, the towns of Sittingbourne and Sheerness are mostly represented by the Labour Party, the rest of the Isle of Sheppey by Conservatives and the mainland villages by localists. At the county council, which held elections more recently (in 2025), all seats in this constituency were won by Reform UK. Voters in Sittingbourne and Sheppey strongly supported leaving the European Union in the 2016 referendum; an estimated 66% voted in favour of Brexit compared to the UK-wide figure of 52%.^[4]

1997–2010: The Borough of Swale wards of Borden, Eastern, Grove, Hartlip and Upchurch, Iwade and Lower Halstow, Kemsley, Milton Regis, Minster Cliffs, Murston, Newington, Queenborough and Halfway, Roman, Sheerness East, Sheerness West, Sheppey Central, West Downs, Woodstock.

2010–2015: The Borough of Swale wards of Borden, Chalkwell, Grove, Hartlip, Newington and Upchurch, Iwade and Lower Halstow, Kemsley, Leysdown and Warden, Milton Regis, Minster Cliffs, Murston, Queenborough and Halfway, Roman, St Michael's, Sheerness East, Sheerness West, Sheppey Central, Teynham and Lynsted, West Downs, Woodstock.

2015–2024: The Borough of Swale wards of Bobbing, Iwade and Lower Halstow; Borden and Grove Park; Chalkwell; Hartlip, Newington and Upchurch; Homewood; Kemsley; Milton Regis; Minster Cliffs; Murston; Queenborough and Halfway; Roman; Sheerness; Sheppey Central; Sheppey East; Teynham and Lynsted; The Meads; West Downs; and Woodstock.

2024–present: Further to the 2023 Periodic Review of Westminster constituencies which came into effect for the 2024 general election, the composition of the constituency is as follows (as they existed on 1 December 2020):

• The Borough of Swale wards of Bobbing, Iwade and Lower Halstow; Borden and Grove Park; Chalkwell; Hartlip, Newington and Upchurch; Homewood; Kemsley; Milton Regis; Minster Cliffs; Murston; Queenborough and Halfway; Roman; Sheerness; Sheppey Central; Sheppey East; The Meads; and Woodstock.^[9]

Reduced in size to bring its electorate within the permitted range by transferring the wards of Teynham and Lynstead, and West Downs to Faversham and Mid Kent.

The constituency was created in 1997, mostly from the former seat of Faversham. It covers some of the district of Swale, including Sittingbourne and the Isle of Sheppey.^[10]

The constituency was created in 1997 as the successor to the former Faversham constituency, containing around 75% of the electors of the former seat.^[11] The removal of the town of Faversham itself (to the new seat of Faversham and Mid Kent) led to the name change, but Sittingbourne had already been the largest town in the former constituency.^[12]

Sittingbourne and Sheppey has been a bellwether of the national result since its creation in 1997, and taken together with its predecessor seat of Faversham, the bellwether streak stretches back to 1979. The seat came extremely close to losing this status in the 2005 general election, when Labour held the seat by just 79 votes after a recount, even though the sitting MP, Derek Wyatt, was expecting to lose.^[13]

Boundary changes which came into effect for the 2010 general election suggest that the Conservatives would have won the seat in 2005 on the new boundaries, though the estimated notional Conservative majority was extremely small, so that it could have gone either way.

Maintaining its bellwether status, the seat was held by Conservative Gordon Henderson at the 2010, 2015, 2017 and 2019 elections with very strong majorities, then taken by Labour's Kevin McKenna in 2024. However, McKenna has a majority of only 0.9% having received under 30% of the vote. This was aided by a collapse in the Conservative vote, most of which went to Reform UK, making the seat a 3-way marginal for the next election.

Faversham prior to 1997

• List of parliamentary constituencies in Kent
• List of parliamentary constituencies in the South East England (region)