Wallington railway station is in the London Borough of Sutton in south London. The station, and all trains serving it, is operated by Southern, and is in Travelcard Zone 5. The station was opened on 10 May 1847 by the London, Brighton and South Coast Railway as 'Carshalton' on the new Croydon to Epsom railway and was renamed to 'Wallington' in 1868 when the new Carshalton railway station opened in Carshalton village.