For other places with the same name, see Surrey (disambiguation). Surrey [1] is a county in the South East of England, located to the south west of London. Surrey is cited as being the wealthiest county in all of Great Britain.Many of Surrey's inhabitants are from affluent backgrounds.ap of Surrey. 1  Guildford-the county town, and largest town in Surrey, has a medieval castle, a modern cathedral, a large university and good shopping on its traditional cobbled High Street and nearby North Street.