Madrid province had the highest consumer price index (CPI) of 52 provinces in September 2025, at 100.405 index. Melilla province had the lowest, at 99.546 index. The median was 99.94 index and the figure for Spain was 100.059 index. Source: the Instituto Nacional de Estadística.
INE consumer price index, general index, base 2021 = 100.
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
Instituto Nacional de Estadística (INE). Índice de precios de consumo, base 2025: índice general (tablas 76125, 76136 y 76141). https://www.ine.es/jaxiT3/Tabla.htm?t=76141. Retrieved 2026-10-07.
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 consumer price index (CPI) using official data, and cite the source.
rank_places {"indicator":"cpi_index","level":"province","within":"Spain","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=cpi_index&level=province&within=Spain&limit=10
Which province has the highest consumer price index (CPI)?
Madrid province, with 100.405 index in September 2025, according to the Instituto Nacional de Estadística.
Which province has the lowest consumer price index (CPI)?
Melilla province, with 99.546 index in September 2025.
Where does this ranking come from?
Every value comes from one source and one period, so the places are comparable: Instituto Nacional de Estadística, Índice de precios de consumo, base 2025: índice general (tablas 76125, 76136 y 76141). Retrieved 2026-10-07.