Population by age and sex - Cities and FUAs in Seoul
Seoul: Population by age and sex - Cities and FUAs was 20.91 million Persons in 2023. ▬ Flat
Population by age and sex - Cities and FUAs in Seoul, 2011–2023
Source: Organisation for Economic Co-operation and Development. Measured in Persons.
Analysis
Seoul recorded 20.91 million Persons for population by age and sex - cities and fuas in 2023.
Compared with earlier readings it is down 0.2% on the previous year and up 0.1% over ten years.
Over the whole period, population by age and sex - cities and fuas in Seoul peaked at 21.23 million Persons in 2019 and was at its lowest, 20.77 million Persons, in 2011.
That places Seoul 2nd out of 1249 regions with data for 2023, putting it in the top 10%.
Population by age and sex - Cities and FUAs in Seoul, year by year
| Year | Persons | Change |
|---|---|---|
| 2011 | 20.77 million Persons | — |
| 2012 | 20.83 million Persons | +0.3% |
| 2013 | 20.88 million Persons | +0.3% |
| 2014 | 20.91 million Persons | +0.1% |
| 2015 | 20.91 million Persons | -0.0% |
| 2016 | 20.90 million Persons | -0.0% |
| 2017 | 20.86 million Persons | -0.2% |
| 2018 | 21.23 million Persons | +1.8% |
| 2019 | 21.23 million Persons | +0.0% |
| 2020 | 21.19 million Persons | -0.2% |
| 2021 | 21.06 million Persons | -0.6% |
| 2022 | 20.95 million Persons | -0.5% |
| 2023 | 20.91 million Persons | -0.2% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 20.95 million Persons | 20.77 million Persons | 21.23 million Persons | 9 |
| 2020s | 21.03 million Persons | 20.91 million Persons | 21.19 million Persons | 4 |
Countries ranked near Seoul
- 1 Armenia 374,066 Persons compare
- 2 Luxembourg 170,335 Persons compare
More population data for Seoul
- Heat stress - Cities and FUAs — Mean population exposure to heat 63.47 Days per year (2025)
- Population and built-up density - Cities and FUAs — Urbanised area 490 Square kilometres (2030)
Frequently asked questions
- What is population by age and sex - cities and fuas in Seoul?
- Population by age and sex - cities and fuas in Seoul was 20.91 million Persons in 2023, according to Organisation for Economic Co-operation and Development.
- What is the highest population by age and sex - cities and fuas recorded in Seoul?
- The highest recorded value was 21.23 million Persons in 2019.
- What is the lowest population by age and sex - cities and fuas recorded in Seoul?
- The lowest recorded value was 20.77 million Persons in 2011.
- How does Seoul rank for population by age and sex - cities and fuas?
- Seoul ranks 2nd out of 1249 regions with data for 2023.
- Is population by age and sex - cities and fuas rising or falling in Seoul?
- Over the last ten years it is up 0.1%. The long-run trend across the full record is flat.
- Where does this Seoul data come from?
- The figures come from Organisation for Economic Co-operation and Development, published as part of Population by age and sex - Cities and FUAs. Statizoid updates them automatically from the source API.
Download this data
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About this data
This dataset provides population counts by 5-year age groups and sex for OECD Functional Urban Areas (FUAs) and cities. Data sources and methodology Population by age and sex data is collected at the level of small administrative units (e.g. municipalities) and aggregated at the FUA and city level. The correspondence table between SAUs and FUAs/cities is available in parquet and csv format. Defining FUAs and cities The OECD, in cooperation with the EU, has developed a harmonised definition of functional urban areas (FUAs) to capture the economic and functional reach of cities based on daily commuting patterns (OECD, 2012). FUAs consist of: A city – defined by urban centres in the degree of urbanisation, adapted to the closest local administrative units to define a city. A commuting zone – including all local areas where at least 15% of employed residents work in the city. The delineation process includes: Assigning municipalities surrounded by a single FUA to that FUA. Excluding non-contiguous municipalities. The definition identifies 1 272 FUAs and 1 269 cities in all OECD member countries except Costa Rica and four accession countries. Cite this dataset OECD Regions, cities and local areas database (Population by age and sex - Cities and FUAs), http://oe.cd/geostats Further information OECD Local Data Portal OECD Regions and Cities at a Glance For questions and/or comments, please email CitiesStat@oecd.org