Drayton Park railway station is on the Network Rail Northern City Line, which carries First Capital Connect trains between Moorgate and Welwyn Garden City or Hertford via Finsbury Park. It is between Finsbury Park and Highbury & Islington, and is in Travelcard Zone 2.
It is in Highbury, just off the Holloway Road near its southern end, close to the Liverpool Road junction. It stands in the shadow of Arsenal football club's Emirates Stadium, but is effectively shut on matchdays as the services at the station do not operate at weekends nor after 2200, instead being diverted to London Kings Cross.
Drayton Park was opened by the Great Northern & City Railway (GN&CR) on 14 February 1904. The GN&CR was constructed to provide a route for Great Northern Railway (GNR) trains between the GNR station at Finsbury Park and the Metropolitan Railway (MR) and City & South London Railway (C&SLR) station at Moorgate in the City of London. With the exception of Drayton Park station and the former depot which are in a deep cutting, the railway was constructed in deep tube tunnel.
The tunnels were constructed with a larger diameter than the other deep-tube railways to accommodate GNR main-line trains but a dispute between the two companies prevented the GN&CR connecting its tunnels to the GNR platforms at Finsbury Park. The GN&CR tunnels instead terminated beneath the main-line station without a running connection to the surface, rolling stock accessing the line via a yard connection at Finsbury Park.