S
- Sawbridgeworth
- Seven Sisters
- Shelford (Cambs)
- Shenfield
- Shoeburyness
- Silver Street
- South Woodham Ferrers
- Southbury
- Southend Airport
- Southend Central
- Southend East
- Southend Victoria
- Southminster
- St James Street (Walthamstow)
- St Margarets (Herts)
- Stamford Hill
- Stanford-le-Hope
- Stansted Airport
- Stansted Mountfitchet
- Stoke Newington
- Stratford (London)
- Sudbury (Suffolk)