Clapton railway station is on a suburban line operated by London Overground. It is located on Upper Clapton Road.
It links Upper Clapton to Liverpool Street in central London and Chingford.
Clapton is on a branch of the Lea Valley Lines. The branch separates into Tottenham Hale and St James Street. The line joins up with the Seven Sisters branch at Hackney Downs. Trains which call at Clapton do not serve the Tottenham Hale branch.
Clapton is in both Travelcard Zone 2 and Travelcard Zone 3.