Clapham High Street railway station is on the South London Line. Services on the line are operated by London Overgrounds's service from Clapham Junction to Highbury & Islington. Southeastern also operates a daily service between London Victoria and Bromley South. It is close to Clapham North underground station and interchange is counted as an Out of Station Interchange on Oyster, so journeys involving a change between the two are charged as through journeys and not two separate journeys.