- Sabden
- Sacriston
- Saffron Walden
- Saham Toney
- Sale
- Salford
- Salfords
- Saline
- Salisbury
- Salsburgh
- Saltburn-by-the-Sea
- Saltdean
- Saltford
- Sampford Peverell
- Sandbach
- Sandiacre
- Sandiway
- Sandleheath
- Sandwich
- Sandycroft
- Sapcote
- Saughall
- Sawbridgeworth
- Sawston
- Sawtry
- Saxilby
- Scarcroft
- Scawby
- Scayne's Hill
- Scole
- Scotter
- Scunthorpe
- Seaford
- Seaham
- Seaton Delaval
- Seaton Sluice
- Sedbury
- Sedgefield
- Sedgley
- Seer Green
- Seghill
- Selby
- Selsey
- Selston
- Seven Sisters
- Sevenoaks
- Severn Beach
- Shadoxhurst
- Shaftesbury
- Shalmsford Street
- Shamley Green
- Sharlston
- Sharnbrook
- Sharpness
- Shavington
- Shawbury
- Sheerness
- Sheffield
- Shefford
- Shenley
- Shepley
- Shepshed
- Shepton Mallet
- Sherborne St John
- Sherburn Hill
- Sherburn in Elmet
- Sherfield on Loddon
- Sheriff Hutton
- Sherston
- Shevington
- Shevington Vale
- Shifnal
- Shilbottle
- Shildon
- Shillingstone
- Shillington
- Shipham
- Shipston-on-Stour
- Shipton Bellinger
- Shirebrook
- Shoreham-by-Sea
- Shorne Ridgeway
- Shortstown
- Shotley Gate
- Shotts
- Shrewsbury
- Shrewton
- Shrivenham
- Shurdington
- Sible Hedingham
- Sileby
- Silkstone
- Silkstone Common
- Silsden
- Silsoe
- Silver End
- Silverstone
- Sissinghurst
- Sittingbourne
- Skellingthorpe
- Skelmanthorpe
- Skelmersdale
- Skidby
- Skipton
- Slamannan
- Slinfold
- Slough
- Smallfield
- Smethwick
- Snaith
- Snodland
- Soham
- Solihull
- Sonning Common
- South Cave
- South Cerney
- South Chailey
- South Darenth
- South Earlswood
- South Elmsall
- South Godstone
- South Harefield
- South Hayling
- South Hetton
- South Hiendley
- South Kirkby
- South Littleton
- South Milford
- South Normanton
- South Nutfield
- South Ockendon
- South Shields
- South Wingfield
- South Witham
- South Wonston
- South Woodham Ferrers
- Southampton
- Southminster
- Southport
- Southwater
- Sowerby Bridge
- Speldhurst
- Spencers Wood
- Spennymoor
- Spofforth
- Spratton
- Springside
- Springvale
- Sprotbrough
- St Albans
- Stafford
- Staindrop
- Staines-upon-Thames
- Staining
- Stakeford
- Stalbridge
- Stalmine
- Stalybridge
- Stamperland
- Standlake
- Stanford in the Vale
- Stanford-le-Hope
- Stansted Mountfitchet
- Stanwick
- Staplehurst
- Steeple Bumpstead
- Steeple Claydon
- Stenhousemuir
- Stepps
- Stevenage
- Stevenston
- Stewartby
- Stewkley
- Steyning
- Stilton
- Stirling
- Stockport
- Stocksbridge
- Stocksfield
- Stockton-on-Tees
- Stoke Golding
- Stoke Mandeville
- Stoke Poges
- Stoke-on-Trent
- Stokenchurch
- Stokesley
- Stonebroom
- Stonesfield
- Stoney Stanton
- Stoneyburn
- Stonnall
- Storrington
- Stotfold
- Stourbridge
- Stourport-on-Severn
- Stow-on-the-Wold
- Stowmarket
- Stowupland
- Stratford-upon-Avon
- Strathaven
- Strathblane
- Streethouse
- Strensall
- Stretford
- Stretham
- Stretton-on-Dunsmore
- Stubbington
- Sturminster Marshall
- Sturminster Newton
- Sturry
- Sunbury-on-Thames
- Sunderland
- Sutton Benger
- Sutton Bonington
- Sutton Courtenay
- Sutton Valence
- Sutton in Ashfield
- Sutton on Trent
- Swadlincote
- Swallownest
- Swanage
- Swanland
- Swanley
- Swanscombe
- Swavesey
- Sway
- Swillington
- Swinton
- Sywell
- Argyll and Bute
- Bedfordshire
- Berkshire
- Blaenau Gwent
- Bridgend
- Bromley
- Buckinghamshire
- Caerphilly
- Cambridgeshire
- Cardiff County
- Carmarthenshire
- Cheshire
- Clackmannanshire
- Cornwall
- County Durham
- Croydon
- Derbyshire
- Devon
- Dorset
- East Ayrshire
- East Dunbartonshire
- East Lothian
- East Renfrewshire
- East Riding of Yorkshire
- East Sussex
- Edinburgh
- Essex
- Faen
- Falkirk
- Fife
- Flintshire
- Glasgow
- Gloucestershire
- Greater Manchester
- Hampshire
- Herefordshire
- Hertfordshire
- Hillingdon
- Inverclyde
- Kent
- Lancashire
- Leicestershire
- Lincolnshire
- Merseyside
- Merthyr Tydfil
- Midlothian
- Monmouthshire
- Neath Port Talbot
- Newport
- Norfolk
- North Ayrshire
- North Lanarkshire
- North Yorkshire
- Northamptonshire
- Northumberland
- Nottinghamshire
- Oxfordshire
- Perth and Kinross
- Powys
- Renfrewshire
- Rhondda Cynon Taf
- Rutland
- Scottish Borders
- Shropshire
- Somerset
- South Ayrshire
- South Lanarkshire
- South Yorkshire
- Staffordshire
- Stirling
- Suffolk
- Surrey
- Tyne and Wear
- Vale of Glamorgan
- Warwickshire
- West Dunbartonshire
- West Lothian
- West Midlands
- West Sussex
- West Yorkshire
- Wiltshire
- Worcestershire
- Wrexham