South Korea Administrative Divisions

What is the hierarchy of administrative divisions in South Korea?

South Korea operates on a multi-level system starting with 17 first-level divisions (including metropolitan cities, a special city, a special self-governing city, and provinces), followed by cities, counties, and districts, with neighbourhoods, towns, and townships as the smallest administrative units.

Here’s a breakdown of the hierarchy:

1. First-level divisions: South Korea is divided into 17 first-level divisions, including metropolitan cities, a special city, a special self-governing city, and provinces.

2. Cities, counties, and districts: These are subdivisions of the first-level divisions.

3. Neighbourhoods, towns, and townships: These are the smallest administrative units, found within cities, counties, and districts.

List of South Korea's administrative divisions with their counts and names

These are the summarized administrative divisions. The full dataset is available in the Download Center.

isocountryadmin level 1admin level 2admin level 3admin level 4
KRSouth KoreaBusan (Metropolitan city)14 Districts, 2 CountiesThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaChungcheongbuk (Province)6 Cities, 8 CountiesThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaChungcheongnam (Province)8 Cities, 8 CountiesThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaDaegu (Metropolitan city)2 Counties, 7 DistrictsThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaDaejeon (Metropolitan city)5 DistrictsThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaGangwon (Special autonomous province)11 Counties, 7 CitiesThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaGwangju (Metropolitan city)5 DistrictsThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaGyeonggi (Province)2 Districts, 39 Cities, 3 CountiesThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaGyeongsangbuk (Province)11 Cities, 12 CountiesThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaGyeongsangnam (Province)10 Counties, 12 CitiesThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaIncheon (Metropolitan city)2 Counties, 8 DistrictsThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaJeju (Special autonomous province)2 CitiesThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaJeollanam (Province)17 Counties, 5 CitiesThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaJeonbuk (Province)7 Cities, 8 CountiesThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaSejong (Special autonomous city)1 CountyThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaSeoul (Special city)25 DistrictsThis level doesn’t exist for this country.This level doesn’t exist for this country.
KRSouth KoreaUlsan (Metropolitan city)1 County, 4 DistrictsThis level doesn’t exist for this country.This level doesn’t exist for this country.

Why is building an Administrative Divisions Database complex?

The complexity arises from inconsistent global standards, frequent boundary changes, non-uniform naming conventions (e.g., “suburb” in Australia vs. “county” in the US), and variations in administrative levels across countries. Integrating and harmonizing data from multiple sources requires advanced normalization, versioning, and geospatial validation techniques.

How does GeoPostcodes solve the problem for you?

Our standardized database overcomes the complexity of different administrative division
systems worldwide. Our database follows a unified structure that you can integrate
seamlessly into your system or platform of choice without needing to become an expert in
each country’s unique administrative hierarchy.

Download the complete Dataset

Explore the comprehensive list of administrative divisions, standardized and scalable across 247 countries.

Why choose GeoPostcodes

Global coverage

Complete coverage across 247 countries, including hard-to-source geographies like China, Japan, Brazil, and Russia.

Highest quality

Built on extensive, authoritative sourcing with robust data engineering and quality control. Standardized and up-to-date.

Expert Consulting

With 15 years of experience, we guide your implementation and deliver data in the format that fits your system.

Trusted by industry leaders

Join more than 100 enterprise clients who trust GeoPostcodes for their location data

GeoPostcodes - Ecotransit logo
“GeoPostcodes’ global ZIP codes allow us to determine distances accurately. Thanks to their up-to-date database, we no longer have problems with missing locations, making our system much more efficient and reliable.”

Anjo Grebe

Consultant

“GeoPostcodes databases provide IATA codes, enhanced UNLOCODEs with port terminal data, addresses, and more – all on a global scale! This level of accuracy is essential for our mileage and CO2 emissions calculation.”
GeoPostcodes - Peter Wild CarbonCare

Dr. Peter Wild

Managing Partner

“GeoPostcodes’ Population data shows population forecasts over the next years. We can use it as a proxy to justify longer-term changes and downgrade postal code areas in terms of economic viability.”

Kousha Mazloumi

Director of Data Science

“The concept of the city receives different names or belongs to different hierarchical levels depending on the country. Using GeoPostcodes’ data gave us access to city definitions aligned with our customers’ expectations, saving us computation time.”

Kousha Mazloumi

Director of Data Science

GeoPostcodes - Logo_DB_Schenker
“The world is constantly changing. New localities and neighborhoods open up or become dispersed. It’s good to know that GeoPostcodes is keeping on top of those changes and providing us with updated information to work with.”
GeoPostcodes-GeoPostcodes-William chao picture

William Chao

Product Owner of Geographic Information Services

GeoPostcodes - Bark Logo
“The key aspect of working with GeoPostcodes has been their ability to provide customized data solutions. Their collaborative approach has made them an excellent partner in addressing our location data challenges.”

Kate Kilby

Senior Product Manager

GeoPostcodes - Opterrix-logo
“GeoPostcodes’ multi-level boundaries were perfectly aligned, enabling seamless integration with multiple secure cloud platforms. Our software can now provide more accurate visualizations for risk analysis and natural hazard monitoring.”

Dave Hamm

Project Manager

“Countries like Brazil or China are particularly strict with their customs validation. GeoPostcodes’ ZIP codes and Enhanced UNLOCODES database are aligned with national regulations, ensuring seamless transportation and compliance.”
GeoPostcodes - Kavian Ranjbar

Kavian Ranjbar

Data Governance Specialist

“If you’ve got a business where locations are a big part of it and you’re looking to avoid the large costs that can be involved in using APIs, GeoPostcodes’ on-premise database is definitely worth considering.”
GeoPostcodes-Nick Baugie

Nick Beaugié

Senior Software Engineer

Our location dataset for South Korea

Explore our comprehensive collection of South Korea ZIP code and administrative data products, designed to meet all your mapping and location intelligence needs.

South Korea ZIP Codes

South Korea uses a “우편번호” (postal code) system, which is a five-digit numeric format like 99999, with no letters or separators. This means it uses only numbers, and is the same as the US ZIP codes. According to the GeoPostcodes world postal code database, South Korea has 34,395 postal codes covering 269 regions and 5,050 towns.

South Korea ZIP & Administrative boundaries

South Korea administrative landscape often follows inconsistent regional models and irregular public sources, making it difficult to maintain reliable boundaries. Our standardized postal and administrative boundary data resolves these gaps to ensure complete, coherent geographic coverage.

South Korea Address Format

Address conventions differ by country, leading to frequent validation errors and incomplete entries. Our dataset applies South Korea correct address format to ensure clean inputs, smoother validation, and reduced delivery mistakes.

Address validation - South Korea address validation

Comprehensive South Korea ZIP code, city, and address data to verify and correct existing addresses at input, post-entry, or in bulk.

Global Location Databases

Comprehensive location data products serving businesses, and
organizations worldwide with accurate, up-to-date geographic information.

Postal code samples

Postal Code Database

Global dataset containing all administrative divisions, cities and ZIP codes.

Explore postal code database

Key features

  • 247 Countries
  • 9,9M Coordinates
  • 9,3M Postal Codes
  • 400 Time zones
  • 4M Cities and Towns
  • 116K UNLOCODES

Specifications

  • Coverage: Global
  • Format: CSV, ASC, DAT, GML, GeoJSON, KML, Shapefile (SHP)
Boundary polygons

Boundary Data

A global dataset of polygons representing postal codes and administrative areas.

Explore boundaries database

Key features

  • 247 Countries
  • Up to 6 levels
  • 1,7M boundaries
  • High-precision
  • 245K Admin areas
  • Visualization

Specifications

  • Coverage: Global
  • Format: GeoJSON, Geopackage, KML, Shapefile (SHP)
Los Angeles population map

Population Database

Global population estimates at postal code and administrative level covering a span of 55 years: past, present, and future.

Explore population database

Key features

  • 247 Countries
  • 243K Admin areas
  • 55 year span
  • Yearly updates
  • 645K ZIP codes

Specifications

  • Coverage: International
  • Format: CSV, ASC
Street address dataset

Address Database

International dataset with all administrative areas, cities, streets, and relevant postal codes.

Explore address database

Key features

  • 81 Countries
  • 299 languages
  • 26,5M streets
  • 400 time zones
  • 9.3M ZIP codes
  • 4M cities

Specifications

  • Coverage: International
  • Format: CSV, ASC, DAT, GML, KML, Shapefile (SHP), GeoJSON
Updated: June 1, 2026

Frequently Asked Questions

South Korea is divided into 1 special city (특별시), 1 special autonomous city (특별 자치도), 6 metropolitan cities (광역시), and 9 other units across 2 types, which form the top-level administrative units. These are further divided into 97 cities (시) and 153 counties (군). Major special city include Busan, Chungcheongbuk, and Chungcheongnam.

South Korea has 2 administrative levels. Level 1: 1 special city (특별시), 1 special autonomous city (특별 자치도), 6 metropolitan cities (광역시), and 9 other units across 2 types. Level 2: 97 cities (시) and 153 counties (군).

South Korea operates on a multi-level system starting with 17 first-level divisions (including metropolitan cities, a special city, a special self-governing city, and provinces), followed by cities, counties, and districts, with neighbourhoods, towns, and townships as the smallest administrative units.

In South Korea, special city and special autonomous city both sit at administrative level 1 but serve different functions. Special city (특별시) — there is 1 — is typically a larger city or urban area that governs itself independently. Special autonomous city (특별 자치도) — there is 1 — groups multiple smaller municipalities under a shared administration.

South Korean administrative divisions have specific local names at each level. In Korean, special city are called 특별시; special autonomous city are called 특별 자치도; metropolitan cities are called 광역시; provinces are called 도; special autonomous province are called 특별 자치도; cities are called 시; counties are called 군. These local-language terms appear in official documents, legal records, and government databases, so matching them correctly is important for data integration and compliance.

Administrative boundaries in South Korea change as governments reorganize regions, merge municipalities, or create new administrative units to reflect population shifts and political decisions. Changes most commonly affect the cities level, where South Korea currently has 250 units. Businesses that rely on South Korean administrative data should use a regularly updated reference dataset to avoid mismatches in geocoding, tax jurisdiction mapping, and compliance reporting.