Madrid province had the highest population aged 15 to 64 of 49 provinces in 2021, at 4.52 million. Soria province had the lowest, at 55,667. The median was 378,327 and the figure for Spain was 31.37 million. Source: Eurostat, European Commission.
Resident population aged 15 to 64 on 1 January (Eurostat).
The working-age band Eurostat uses for EU comparisons. population_16_64 (INE, Spain) starts at 16, so the two series differ.
Every value in the ranking comes from the same publisher and the same period, so the provinces are compared on one definition. Equal values share a rank.
How to cite
Eurostat. Population on 1 January by broad age group, 15 to 64, by NUTS 2 and 3 region (demo_r_pjanaggr3). https://ec.europa.eu/eurostat/databrowser/view/demo_r_pjanaggr3/default/table. Retrieved 2026-10-09.
Use this data in your AI agent
Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:
Rank Provinces of Spain by population aged 15 to 64 using official data, and cite the source.
rank_places {"indicator":"population_15_64","level":"province","within":"Spain","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population_15_64&level=province&within=Spain&limit=10
Which province has the highest population aged 15 to 64?
Madrid province, with 4.52 million in 2021, according to Eurostat, European Commission.
Which province has the lowest population aged 15 to 64?
Soria province, with 55,667 in 2021.
Where does this ranking come from?
Every value comes from one source and one period, so the places are comparable: Eurostat, European Commission, Population on 1 January by broad age group, 15 to 64, by NUTS 2 and 3 region (demo_r_pjanaggr3). Retrieved 2026-10-09.
