- Inception
- 6 June 1395
- Population
- 9668465, 9806538, 9904312, 10575447, 10297004, 10373234, 10595943, 10627790, 9645932, 8366756, 6889470, 5536169
- Area
- 605.25
- Elevation
- 38 m
- contains the administrative territorial entity
- Gangnam District, Gangdong District, Gangbuk District, Gangseo District, Gwanak District, Gwangjin District, Guro District, Geumcheon District, Nowon District, Dobong District, Dongdaemun District, Dongjak District
- demonym
- 서울 시민, Seoulite, Séoulien, Séoulienne, Seulano
- hashtag
- Seoul, 서울
- IPA transcription
- səˈul
- local dialing code
- 02
- name
- Hán Thành
- native label
- 서울
- official name
- 서울특별시
- postal code
- 01000–01200
- pseudonym
- 首爾
- social media followers
- 70300
- time of earliest written record
- 4th century BCE
- twinned administrative body
- San Francisco, Cairo, Jakarta, New Delhi, Taipei, Ankara, Guam, Tehran, Bogotá, Tokyo, Moscow, Sydney