- Strensall
- Street
- Strathaven
- Stratford-upon-Avon
- Stratfield Mortimer
- Stranraer
- Strabane
- Stowmarket
- Stow on the Wold
- Stourport-on-Severn
- Stourbridge
- Stotfold
- Storrington
- Stornoway
- Stoney Stanton
- Stonehaven
- Stokesley
- Stoke-on-Trent
- Stokenchurch
- Stoke Poges
- Stoke Gifford
- Stockton-on-Tees
- Stockton Heath
- Stocksbridge
- Stockport
- Stirling
- Stilton
- Steyning
- Stewarton
- Stevenston
- Stevenage
- Stepps
- Steeton
- Steeple Claydon
- Staveley
- Staplehurst
- Stanwick
- Stansted
- Stanley
- Stanford-le-Hope
- Standon
- Stamford
- Stalybridge
- Stalham
- Stalbridge
- Stainforth
- Staines
- Stafford
- St Ives
- Spixworth
- Spilsby
- Spennymoor
- Spalding
- Sowerby Bridge
- Southwold
- Southwell
- Southwater
- Southsea
- Southport
- Southowram
- Southminster
- Southgate
- Southend-on-Sea
- Southchurch Village
- Southam
- South Shields
- South Ockendon
- South Nutfield
- South Molton
- South Hetton
- South Elmsall
- South Collingham
- South Cave
- South Brent
- South Benfleet
- Somerton
- Somersham
- Solihull
- Soham
- Snodland
- Snettisham
- Snaith
- Smethwick
- Slough
- Sleights
- Sleaford
- Skipton
- Skelton
- Skelmersdale
- Skellingthorpe
- Skegness
- Sittingbourne
- Sion Mills
- Silsden
- Silloth
- Sileby
- Sidmouth
- Sible Hedingham
- Shrivenham
- Shrewsbury
