Sindorim Station is a station on Seoul Subway Line 1 (overground platforms) and Line 2 (underground). It is also the southeastern terminus of Line 2's Sinjeong Branch to Kkachisan (underground platform 3). The station is located at the northern edge of Sindorim-dong, Guro-gu, Seoul, on the border with Yeongdeungpo-gu. Sindorim Station is designed primarily to serve as a transfer station of the Subway Lines 1 and 2, having no direct exits from the Line 1 platform. It is known to be the most congested transfer station of Seoul Subway, especially during the rush hours. It is estimated that over 320,000 passengers per day use Sindorim Station to transfer between Lines 1 and 2. A plan to extend the Line 2 part of the station, including a new platform for the outer circle line, is now on design. Screen doors are also being added to the subway platforms. All Line 2 trains that operate up to this station take the Sinjeong Branch to the serviced at the Sinjeong Train Servicing Depot, located next to Yangcheon-gu Office Station.