Question: What was the population at the 2011 Census of the suburb of which St Andrew's Church, Brighton is the Anglican parish church?

full_context: Document 1: Richmond, Victoria: Richmond is an inner suburb of Melbourne, Australia, 3 km south-east of Melbourne's Central Business District in the local government area of the City of Yarra municipality. The 2011 Census listed Richmond's population as 26,121.
Document 2: South Melbourne, Victoria: South Melbourne is an inner suburb of Melbourne, Australia, 2 km south of Melbourne's Central Business District (CBD). It is in the local government area of the City of Port Phillip. At the 2011 Census, South Melbourne had a population of 9,317.
Document 3: Melbourne: Melbourne ( ) is the capital and most populous city of the Australian state of Victoria, and the second-most populous city in Australia and Oceania. The name "Melbourne" covers an urban agglomeration spanning 2664 km2 , which comprises the broader metropolitan area, as well as being the common name for its city centre. The metropolis is located on the large natural bay of Port Phillip and expands into the hinterlands towards the Dandenong and Macedon mountain ranges, Mornington Peninsula and Yarra Valley. Melbourne consists of 31 municipalities. It has a population of 4,641,636 as of 2016 , and its inhabitants are called Melburnians.
Document 4: St. Andrew's Church, Thunder Bay: St. Andrew's Church is a Roman Catholic Parish church in Thunder Bay, Ontario. It was founded by the Society of Jesus in the 1872 and is a centre for ministry with the Fort William First Nation. It is situated on Connaught Square in the Port Arthur area of the city.
Document 5: Brighton, Victoria: Brighton is an affluent beach-side suburb of Melbourne, Victoria, Australia, 11 km south-east of Melbourne's central business district. Its local government area is the City of Bayside. At the 2011 Census, Brighton had a population of 21,257. Brighton is named after Brighton in England.
Document 6: St Andrew's Church, Roker: St Andrew's, Roker (1905-7) is an Anglican parish church in Sunderland, England. It is recognised as one of the finest churches of the first half of the twentieth century and the masterpiece of Edward Schroeder Prior. The design of St Andrew's drew together many of the strings of Prior's philosophy and approach to design and building. Three years before commencing St Andrew's, Prior had written that the architect's first purpose was to provide;
Document 7: St Andrew's Church, Brighton: St Andrew's Church, Brighton, is the Anglican parish church of the beachside suburb of Brighton, Melbourne, Victoria, Australia.
Document 8: Brunswick, Victoria: Brunswick is an inner-city suburb of Melbourne, Victoria, Australia, 4 km north of Melbourne's central business district. Its local government area is the City of Moreland. At the 2016 Census, Brunswick had a population of 24,473.
Document 9: Southbank, Victoria: Southbank is an inner urban neighbourhood of Melbourne, Victoria, Australia, 1 km south of Melbourne's central business district. Its local government area are the Cities of Melbourne and Port Phillip. At the 2011 Census, Southbank had a population of 11,235. Its northernmost area is considered part of the Central Business District and Central Activities District of the City. Southbank is bordered to the north by the Yarra River, and to the east by St Kilda Road. Southbank's southern and western borders are bounded by Dorcas Street, Kings Way, the West Gate Freeway and Montague Street.
Document 10: St Andrew's Church, Plymouth: The Minster Church of St Andrew, also known as St Andrew's Church, Plymouth is an Anglican church in Plymouth. It is the original parish church of Sutton, one of the three towns which were later combined to form the city of Plymouth. The church is the largest parish church in the historic county of Devon and was built in the mid to late 15th century. It was designated as a Minster Church in 2009 and it continues to operate as the focus for religious civic events for the city and as a bustling evangelical church.
Document 11: Southbank, Victoria: Southbank is an inner urban neighbourhood of Melbourne, Victoria, Australia, 1 km south of Melbourne's central business district. Its local government area are the Cities of Melbourne and Port Phillip. At the 2011 Census, Southbank had a population of 11,235. Its northernmost area is considered part of the Central Business District and Central Activities District of the City. Southbank is bordered to the north by the Yarra River, and to the east by St Kilda Road. Southbank's southern and western borders are bounded by Dorcas Street, Kings Way, the West Gate Freeway and Montague Street.
Document 12: Christ Church, St Leonards-on-Sea: Christ Church is an Anglican church in the town and seaside resort of St Leonards-on-Sea, part of the Borough of Hastings in East Sussex, England. Opened as the town's third Anglican church in 1860 to serve a rapidly developing residential area and to accommodate poor worshippers who could not afford pew rents at the fashionable St Leonard's and St Mary Magdalene's Churches, the original building was superseded by a much larger church built next to it between 1873 and 1875. Prolific ecclesiastical architect Sir Arthur Blomfield's simple Gothic Revival design forms a landmark on one of St Leonards-on-Sea's main roads, continues to serve a large area of the town (including the former parish of the now closed St Mary Magdalene's Church) and maintains a strong Anglo-Catholic tradition. It has been described as Blomfield's "finest achievement in Sussex" and "one of the main centres of Anglo-Catholic worship in Southern England". The interior fittings are the best of any church in the borough, and the design has been called one of Blomfield's most successful. St John the Evangelist's Church, founded as a daughter church nearby in 1865, also continues to thrive as a separate parish church. English Heritage has listed Christ Church at Grade II* for its architectural and historical importance.
Document 13: Union Chapel, Brighton: The Union Chapel, also known as the Union Street Chapel, Elim Free Church, Four Square Gospel Tabernacle or Elim Tabernacle of the Four Square Gospel, is a former chapel in the centre of Brighton, a constituent part of the city of Brighton and Hove, England. After three centuries of religious use by various congregations, the chapel—which had been Brighton's first Nonconformist place of worship—passed into secular use in 1988 when it was converted into a pub. It was redesigned in 1825, at the height of Brighton's Georgian building boom, by at least one of the members of the Wilds–Busby architectural partnership, Brighton's pre-eminent designers and builders of the era, but may retain some 17th-century parts. It has been listed at Grade II in view of its architectural importance.
Document 14: St Andrew's Church, Church Road, Hove: St Andrew's Church is an Anglican church in Church Road, Hove, in the English city of Brighton and Hove. It is usually referred to as St Andrew (Old Church) to distinguish it from another St Andrew's Church in Waterloo Street, elsewhere in Hove. It served as Hove's parish church for several centuries until 1892, although the building was in a state of near-ruin until Hove began to grow from an isolated village to a popular residential area in the early 19th century.
Document 15: St Mark's Church, Brighton: St Mark's Church is a former Anglican church in the Kemptown area of Brighton, part of the English city of Brighton and Hove. Originally intended as the private chapel of the adjacent St Mary's Hall school, it was partly built in 1838 at the request of Frederick Hervey, 1st Marquess of Bristol; but arguments over whether or not it should also be open to the public delayed its completion for more than 10 years. It became the parish church of Kemptown in 1873, but declining attendances resulted in a declaration of redundancy in 1986. At that time it was taken over by the school and became its chapel, nearly 150 years after this was first proposed. The Early English-style stone and concrete structure has been criticised by architectural historians, but has been listed at Grade II by English Heritage for its architectural and historical importance.
ground_truth: 21,257