The Ansan Line is a railway line connecting Gunpo to Siheung in South Korea. Services on this line run through train services into Seoul Subway Line 4 via the Gwacheon Line. Services from the Suin Line share tracks with this line between Hanyang Univ. (Ansan)–Oido.^[1]

In 1988 the section between Geumjeong–Ansan opened as a branch line of Gyeongbu Line with through train service to Seoul Subway Line 1. Since the opening of the Gwacheon Line the trains have been running through to Seoul Subway Line 4.^{[citation needed]} The line was extended as follows:

Express trains stop at stations marked "●" and pass stations marked "|".^{[citation needed]}

Station number	Station name English	Station name Hangul	Station name Hanja	EX	Transfer			Distance in km from Danggogae	Total distance	Location
↑ Through-services to/from Danggogae via Gwacheon Line and Seoul Metropolitan Subway Line 4 ↑ Express services stop at all stops beyond Geumjeong station.
443	Geumjeong	금정	衿井	●				2.6	45.5	Gunpo-si
444	Sanbon	산본	山本	●				2.3	47.8
445	Surisan	수리산	修理山	|				1.1	48.9
446	Daeyami	대야미	大夜味	|				2.6	51.5
447	Banwol	반월	半月	|				2.0	53.5	Ansan-si
448	Sangnoksu	상록수	常綠樹	●				3.7	57.2
449	Hanyang Univ. at Ansan	한대앞	漢大앞	|		Suin (shared, 2020)	(2020)	1.5	58.7
450	Jungang	중앙	中央	●				1.6	60.3
451	Gojan	고잔	古棧	|				1.4	61.7
452	Choji	초지	草芝	●				1.5	63.2
453	Ansan	안산	安山	●			|	1.8	65.0
454	Singiloncheon	신길온천	新吉溫泉	|				2.2	67.2
455	Jeongwang	정왕	正往	●				2.9	70.1	Siheung-si
456	Oido	오이도	烏耳島	●				1.4	71.5

• Subways in South Korea
• Seoul Subway Line 4