Sejong

The Administrative Capital of South Korea

Sejong Special Self-Governing City (세종특별자치시, Sejong Teukbyeoljachisi) is South Korea’s new administrative capital, designed as a futuristic, eco-friendly smart city. Located between Daejeon and Cheonan, Sejong houses most of the central government ministries, making it the political and administrative heart of the nation.


🏛️ Formation & Historical Background

Named in honor of King Sejong the Great, the creator of Hangul, the city was established to reduce over-centralization in Seoul and promote balanced national development.

Key Historical Timeline:

PeriodMajor Event
2003Government announces plan for a new administrative capital
2007Construction begins
2012Sejong officially launched as a Special Self-Governing City
2014–2020Ministries and agencies move from Seoul to Sejong
2020sBecomes Korea’s leading smart and eco-city

Sejong is South Korea’s most strategically planned city, symbolizing innovation, decentralization, and sustainability.


🧭 Basic City Information

CategoryDetails
Official NameSejong Special Self-Governing City
Korean Name세종특별자치시
CountryRepublic of Korea (South Korea)
StatusSpecial Self-Governing City
Area~465 sq km
Population (2025 est.)~400,000 (fastest-growing city in Korea)
ClimateContinental; hot summers, cold winters
Time ZoneUTC +9 (KST)
Dial Code+82 44
Top-Level Domain.sejong.kr
City Motto“Sejong – Korea’s New Administrative Future”

⚖️ Government & Leadership

PositionCurrent Officeholder (2025)
MayorChoi Min-ho
Governing BodySejong City Government
Legislative CouncilSejong Special Self-Governing City Council
Administrative Divisions1 Urban District + Multiple Administrative Dongs
StatusSpecial Self-Governing City (Unique model, not a province or metro city)

Sejong hosts:

  • Prime Minister’s Office

  • 12+ government ministries

  • 20+ national agencies

It is the de facto administrative capital of South Korea.


🗺️ Administrative Structure

Sejong is unique: no formal Gu (districts) like other metro cities.
Instead, it operates as one unified city with several Administrative Dongs and Eup/Myeon areas.

🏙️ Hierarchical Overview

LevelAdministrative UnitCountExamples
1st LevelSpecial Self-Governing City1Sejong
2nd LevelAdministrative Districts20+Jochiwon-eup, Hansol-dong
3rd LevelLegal Dongs, Eup, Myeon23Dodam-dong, Areum-dong

📍 Major Administrative Areas of Sejong

AreaTypeHighlights
Hansol-dongDongFirst residential zone; city center
Dodam-dongDongGovernment ministries and smart city zone
Areum-dongDongMinistry clusters and administrative complexes
Jochiwon-eupEupTraditional town and railway hub
Yeongi-myeonMyeonRural areas and nature trails
Boram-dongDongHigh-tech education district
Sodam-dongDongGreen residential communities
Bangok-dongDongCentral business and cultural zones

Sejong’s structure ensures walkability, eco-living, and efficient governance.


🌐 Geography & Environment

  • Location: Central Korea (Chungcheong region)

  • River: Geum River flows through the city

  • Terrain: Valleys, open plains, and low mountains

  • Climate: Four seasons; mild springs and cold winters

  • Eco Features:

    • 52% of city area is green space

    • Extensive bicycle highways

    • Korea’s first eco-friendly city planning model

Sejong is designed as a model ecological capital.


🧩 Development Focus & Smart Innovation

Sejong is Korea’s flagship smart and sustainable city.

Key Innovation Sectors:

  • Intelligent Transport System (ITS)

  • Autonomous Bus Network

  • 5G Smart Governance

  • Green Energy Districts

  • Smart Homes with IoT integration

  • Administrative Mega-Complex

It is a global showcase city for urban planning and e-governance.


🛡️ Law Enforcement & Safety

DepartmentFunction
Sejong Police AgencyPublic safety, government district protection
Sejong Fire & SafetyDisaster management and emergency services
Smart Safety CenterAI-based monitoring for traffic and city management

Sejong is one of Korea’s safest and most well-managed cities.


🕊️ Religion, Language & Culture

CategoryDetails
Major ReligionsBuddhism, Christianity, traditional Korean beliefs
LanguageKorean (standard dialect)
CultureModern, young, educated, tech-driven
FestivalsSejong Lake Festival, Sejong Arts Festival, Administrative Anniversary Day

Sejong has a young population, with the highest birth rate in South Korea.


📈 Economy & Key Sectors

SectorDescription
Main IndustriesPublic administration, smart tech, R&D, eco-construction
Economic ZonesGovernment Complex Sejong, Sejong Techno Valley
Future GrowthAI, biotech, hydrogen economy, smart farming

Sejong’s economy grows rapidly as ministries and tech companies relocate here.


🎓 Education & Healthcare

CategoryDetails
Top InstitutionsKorea University Sejong, KDI School of Public Policy
Education FocusPublic policy, technology, administration
HealthcareSejong Chungnam National University Hospital, high-quality medical centers
Life Expectancy~85 years

Sejong is emerging as an education and policy research hub.


✈️ Transport & Infrastructure

CategoryDetails
RailSejong Station (future KTX), Osong KTX nearby
ExpresswaysGyeongbu, Dongseo, and Sejong–Pocheon highways
Smart TransportAutonomous buses, bicycle expressways
Urban PlanningGrid-based, green, and pedestrian-friendly

Sejong is engineered to be the most efficient city in Korea.


🏞️ Tourism & Attractions

Top Destinations:

  • Sejong Lake Park – massive lake, bridges, and walking paths

  • Sejong National Arboretum – Korea’s largest urban arboretum

  • Government Complex Sejong – administrative buildings

  • Jochiwon Traditional Market – cultural heritage

  • Geum River Trails – scenic bicycle routes

  • Bear Tree Park – nature and wildlife attraction

  • Central Park District – modern architecture and culture halls

Sejong balances nature and modernity gracefully.


🌍 Global Role & Relations

AspectDetails
Strategic RoleKorea’s new administrative capital
International EngagementSmart city cooperation programs
Global PartnershipsExchanges with eco-cities and digital capitals worldwide
Sustainability GoalsCarbon-neutral city by 2050

Sejong is a model for future global administrative cities.


📝 Summary

Sejong Special Self-Governing City stands as South Korea’s administrative and eco-smart capital. With futuristic planning, green living, and government leadership at its core, Sejong is shaping the future of governance, sustainability, and intelligent urban design.


📢 News & Articles

  • “Sejong Smart City: Korea’s Administrative Future”

  • “Eco-Capital of the Nation – Inside Sejong’s Green Vision”

  • “Government Complex Sejong: The Heart of Korea’s Administration”


🎯 Our Mission

This profile is part of the AFP Global Knowledge Hub, delivering verified, insightful knowledge on modern cities shaping the future of sustainable governance and innovation.


📬 Contact Us

For verified updates or collaboration regarding Sejong City:
📧 shababalsharif@gmail.com
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