Onsu Station is a station on the Seoul Subway Line 1. It was the former western terminus of Seoul Subway Line 7. A westward extension of Line 7 (from Onsu to Bupyeong-gu Office) was completed in October 2012. It is near the border of Seoul and Bucheon.

Station layout

Line 1

↑ Oryu-dong

| 1 2 | | 3 4 |

Yeokgok ↓

1	→ ● Line 1 toward Soyosan →
2	→ ● Line 1 (Rapid) does not stop here →
3	← ● Line 1 (Rapid) does not stop here
4	← ● Line 1 toward Incheon

Line 7

Cheonwang ↑

| 4, 3 | | 2, 1 |

↓ Kkachiul

4, 3	← ● Line 7 toward Seongnam (Platform 4) or terminates here (Platform 3)
2, 1	→ ● Line 7 toward Jangam →

Vicinity

• Exit 1: St. Peter's School
• Exit 2: Ojeong Elementary School
• Exit 3: Sungkonghoe University
• Exit 4: Yuhan College
• Exit 5: Donggok Elementary School
• Exit 8: Oryu Elementary School, Wooshin Middle & High Schools