Population by age and sex - Cities and FUAs in Köln
Köln: Population by age and sex - Cities and FUAs was 1.02 million Persons in 2025. ▲ Rising
Population by age and sex - Cities and FUAs in Köln, 2009–2025
Source: Organisation for Economic Co-operation and Development. Measured in Persons.
Analysis
The most recent figure for population by age and sex - cities and fuas in Köln is 1.02 million Persons, measured in 2025.
Compared with earlier readings it is down 2.1% over ten years.
Over the whole period, population by age and sex - cities and fuas in Köln peaked at 1.09 million Persons in 2020 and was at its lowest, 995,420 Persons, in 2009.
That places Köln 123rd out of 1258 regions with data for 2025, putting it in the top 10%.
The long-run direction has been consistently rising across the 17 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 995,420 Persons | 995,420 Persons | 995,420 Persons | 1 |
| 2010s | 1.04 million Persons | 998,105 Persons | 1.09 million Persons | 10 |
| 2020s | 1.06 million Persons | 1.02 million Persons | 1.09 million Persons | 6 |
More population data for Köln
- Heat stress - Cities and FUAs — Mean population exposure to heat 13.71 Days per year (2025)
- Population and built-up density - Cities and FUAs — Urbanised area 63 Square kilometres (2030)
- Population on 1 January by age group, sex and NUTS 2 region 4.49 million (2025)
- Population on 1 January by age, sex and NUTS 2 region 4.49 million (2025)
- Animal populations by NUTS 2 region 222.5 (2003)
- Live births (total) by NUTS 3 region 37,658 (2024)
- Population density by NUTS 3 region 614.6 (2024)
- Population on 1 January by broad age group, sex and NUTS 3 region 4.49 million (2025)
- Live births by mother's age and NUTS 2 region 37,658 (2024)
- Fertility rates by age and NUTS 2 region 1.3 (2024)
Frequently asked questions
- What is population by age and sex - cities and fuas in Köln?
- Population by age and sex - cities and fuas in Köln was 1.02 million Persons in 2025, according to Organisation for Economic Co-operation and Development.
- What is the highest population by age and sex - cities and fuas recorded in Köln?
- The highest recorded value was 1.09 million Persons in 2020.
- What is the lowest population by age and sex - cities and fuas recorded in Köln?
- The lowest recorded value was 995,420 Persons in 2009.
- How does Köln rank for population by age and sex - cities and fuas?
- Köln ranks 123rd out of 1258 regions with data for 2025.
- Is population by age and sex - cities and fuas rising or falling in Köln?
- Over the last ten years it is down 2.1%. The long-run trend across the full record is rising.
- Where does this Köln 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
CSV · JSON — 17 observations, free to reuse under OECD Terms and Conditions (attribution required).
About this data
<p align="justify">This dataset provides population counts by 5-year age groups and sex for OECD Functional Urban Areas (FUAs) and cities.</p> <h3>Data sources and methodology</h3> <p align="justify"> 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 <a href=https://webfs-cfe.oecd.org/files/.Stat/cities_local_areas/fua_cities_sau_mapping.parquet>parquet </a> and <a href=https://webfs-cfe.oecd.org/files/.Stat/cities_local_areas/fua_cities_sau_mapping.csv>csv</a> format.<br /><br /> </p> <h3>Defining FUAs and cities</h3> <p align="justify">The OECD, in cooperation with the EU, has developed a harmonised <a href="https://www.oecd.org/en/data/datasets/oecd-definition-of-cities-and-functional-urban-areas.html">definition of functional urban areas</a> (FUAs) to capture the economic and functional reach of cities based on daily commuting patterns <a href=https://doi.org/10.1787/9789264174108-en>(OECD, 2012)</a>. FUAs consist of: <ol> <li><b>A city</b> – defined by urban centres in the degree of urbanisation, adapted to the closest local administrative units to define a city.</li> <li><b>A commuting zone</b> – including all local areas where at least 15% of employed residents work in the city.</li> </ol> The delineation process includes: <ul> <li>Assigning municipalities surrounded by a single FUA to that FUA.</li> <li>Excluding non-contiguous municipalities.</li> </ul> <p>The definition identifies 1 272 FUAs and 1 269 cities in all OECD member countries except Costa Rica and four accession countries.</p> <h3>Cite this dataset</h3> <p>OECD Regions, cities and local areas database (<a href=http://data-explorer.oecd.org/s/1dr>Population by age and sex - Cities and FUAs</a>), <a href="http://oe.cd/geostats">http://oe.cd/geostats</a></p> <h3>Further information</h3> <ul> <li> <a href=https://localdataportal.oecd.org/>OECD Local Data Portal </a> </li> <li> <a href=https://www.oecd.org/en/publications/oecd-regions-and-cities-at-a-glance-2024_f42db3bf-en.html/>OECD Regions and Cities at a Glance </a> </li> </ul> <p align="justify">For questions and/or comments, please email <a href="mailto:CitiesStat@oecd.org">CitiesStat@oecd.org</a>