St Clement's Church, Leigh-on-Sea

Leigh-on-Sea ( ), commonly referred to simply as Leigh, is a town and civil parish in the city of Southend-on-Sea, in the ceremonial county of Essex, England. In 2011 it had a population of 22,509.

HMS Wilton (M1116) was a prototype coastal minesweeper/minehunter for the Royal Navy. She was the first warship in the world to be constructed from glass-reinforced plastic (GRP). Her design was based upon the existing Ton-class minesweepers, and she was fitted with equipment recovered from the scrapped HMS Derriton. The use of GRP gave the vessel a low magnetic signature against the threat of magnetic mines. On commissioning, Wilton joined the 2nd Mine Counter Measures Squadron (2nd MCMS) based at Portsmouth. In 1974, she took part in Operation Rheostat, the Royal Navy's part of the international efforts to clear the Suez Canal of mines. In November that year, Wilton rejoined 2nd MCMS, interrupting her service with that squadron to be seconded to NATO's Standing Naval Force Channel (STANAVFORCHAN) in 1977 and 1980. Wilton took part in the Silver Jubilee Review at Spithead on 28 June 1977. On 31 August 1979 Wilton was involved in an accident when she collided with BNS Breydel off Ostende.Wilton was unofficially known as HMS Tupperware, HMS Indestructible, and "The Plastic Duck" or "Plastic Pig". She was retired by the Royal Navy in 1994; she ended up in store until being sold in August 2001, when she was fitted out as the new home of the Essex Yacht Club at Leigh-on-Sea on the Thames Estuary.

Southend West is a constituency in the House of Commons of the UK Parliament. The seat is currently held by Anna Firth who won the 2022 by-election, following the murder of the incumbent MP, David Amess.

Leigh-on-Sea railway station is on the London, Tilbury and Southend line, serving the town of Leigh-on-Sea, Essex. It is 32 miles 43 chains (52.4 km) down the main line from London Fenchurch Street via Basildon and it is situated between Benfleet to the west and Chalkwell to the east. Its three-letter station code is LES. It was originally opened as Leigh by the London, Tilbury and Southend Railway on 1 July 1855, being renamed Leigh-on-Sea on 1 October 1904, but was rebuilt by the London, Midland and Scottish Railway on a new site, 880 yards (805 m) to the west, opening on 1 January 1934. The station and all trains serving it are currently operated by c2c.

Belton Hills is a 22 hectare Local Nature Reserve in Leigh-on-Sea in Essex. It is owned and managed by Southend-on-Sea City Council.This steeply sloping site has large areas of scrub, and there are some rare plant and invertebrates species. Plants include Deptford pink (flowering June-August) and bithynian vetch (flowering May–June), and a survey in 2001 recorded 667 invertebrate taxa.There is access to the site from Marine Parade and Belton Way.

Belfairs Academy (formerly Belfairs High School) is a non-selective secondary school with academy status in Leigh-on-Sea, Essex.

Chalkwell railway station is on the London, Tilbury and Southend line, serving the locality of Chalkwell in Southend-on-Sea, Essex. It is 33 miles 69 chains (54.5 km) down the main line from London Fenchurch Street via Basildon and it is situated between Leigh-on-Sea to the west and Westcliff to the east. Its three-letter station code is CHW. It was opened in 1933 on a site next to the beach. There is no step-free access available. The station and all trains serving it are currently operated by c2c.

Westcliff High School for Girls, also known by its initialism WHSG, is a selective grammar school and academy for girls in Southend-on-Sea, Essex and surrounding areas. It teaches students from the age of 11 through to 18 years old, and admission to the school is dependent upon their performance in selective 11+ tests set by the Consortium of Selective Schools in Essex (CSSE).

On 15 October 2021, David Amess, a British Conservative Party politician and Member of Parliament for Southend West, died after being stabbed multiple times at a constituency surgery at Belfairs Methodist Church Hall in Leigh-on-Sea, Essex. Ali Harbi Ali, a 25-year-old British man and Islamic State sympathiser, was arrested at the scene. He was found guilty of murder and the preparation of terrorist acts in April 2022, and was sentenced to life imprisonment with a whole life order.

Westcliff High School for Boys (WHSB) is an 11–18 selective academy grammar school for boys in Westcliff-on-Sea, Essex, England. In September 2001 the school was awarded ‘Beacon’ status for its breadth of achievements and quality of work. The school was classed as a humanities college in early 2007 and received a further specialism in science, technology, engineering and mathematics (STEM) on 1 April 2009. The school converted to academy status in 2010.

Chalkwell Park is a recreational park in Chalkwell, Southend-on-Sea, in Essex, England. It covers 27 hectares (67 acres) and contains several flower gardens, two children's playgrounds, a skateboard/BMX park and football, cricket, basketball and tennis fields.The arts and music festival Village Green was held on the grounds of Chalkwell Park annually in the summer. The festival often received more than 25,000 visitors each year, but has not been run since 2019 due to the covid pandemic. The park is also home to NetPark, which claims to be the world’s first digital art park. The park is home to the annual fair that accompanies the Southend Carnival.

Southend and District Reform Synagogue is a Reform Jewish synagogue in Southend-on-Sea, England.