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Seoul 서울특별시

About

Seoul, officially Seoul Special Metropolitan City, is the capital and largest city of South Korea, and the largest city in the whole of Korea. The broader Seoul Metropolitan Area, encompassing Seoul, Gyeonggi Province and Incheon, emerged as the world's sixth largest metropolitan economy in 2022, behind New York, Tokyo, Los Angeles, Paris, and London, and hosts more than half of South Korea's population. Although Seoul's population peaked at over 10 million, it has gradually decreased since 2014, standing at about 9.6 million residents as of 2024. Seoul's history traces back to 18 BC when it was founded by the people of Baekje, one of the Three Kingdoms of Korea.

Description via Wikipedia (lead extract) · name cross-verified Wikidata + Wikipedia.

Verified facts

Seoul (서울특별시) — verified South Korean region / administrative division. Capital: Jung District. Official language: Korean.

Details

• Official Name: Seoul Special Metropolitan City
• Country: South Korea
• Founded: 18 BC
• Metropolitan Rank: world's sixth largest metropolitan economy in 2022
• Name: 서울특별시
• Location: 대한민국
• Role: 수도
• Status: 특별시
• Historic Origin: 위례성

Q&A — what agents ask

Cross-checked by 2 source(s)

• Wikidata — structured open knowledge base · view ↗
• Wikipedia — encyclopedic article · view ↗

Verification history

Verified & tracked since 2026-08-15 · 91 verified snapshots.

Append-only, timestamped — the record of WHEN a fact changed, which a latecomer cannot backfill. Full feed: /changes.json · machine-readable: get_history("region:seoul").

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Embed it — the badge shows this entity’s verification tier + Skill Score and links back here (a “via KoreaAPI” citation):

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