The Independent Authority for Fiscal Responsibility (AIReF) today published its estimate of GDP by Autonomous Region for the second quarter of 2026, using the methodology known as METCAP (Methodology for Quarterly Estimation of GDP by Autonomous Region), developed by the institution. METCAP provides the first freely accessible estimates in Spain offering this information. Updates are published on a quarterly basis and are available to all users on the AIReF website.
These estimates are produced once the National Statistics Institute (Instituto Nacional de Estadística) publishes Spain’s quarterly advance GDP figure. Accordingly, the figure for the second quarter of the year was published on 30 July 2026. A summary of the GDP growth estimates by Autonomous Region, and their evolution in both quarter-on-quarter and year-on-year terms, can be seen in the tables below.
Year-on-year, the Balearic Islands recorded the highest GDP growth, at 3%, followed by the Community of Madrid, the Region of Murcia and the Valencian Community, all at 2.9%. At the other end of the scale, the Principality of Asturias recorded the lowest growth, at 2.2%, followed by Cantabria, Extremadura, the Basque Country and Aragon, all at 2.3%.
In quarter-on-quarter terms, the Balearic Islands recorded the strongest growth, at 0.9%, followed by the Valencian Community and the Region of Murcia, both at 0.8%. The lowest growth was recorded in Extremadura, Aragon, the Basque Country, the Principality of Asturias, Cantabria, Galicia, Castile and León and the Chartered Community of Navarre, all at 0.6%.
As is customary, AIReF provides users with an easy-to-use web-based interface that allows comparisons across Autonomous Regions and with national GDP.
The quantitative methodology used, which was recently revised, combines three sources of statistical information for regional analysis: monthly short-term indicators disaggregated at regional level; annual data compiled under national accounts standards by the Regional Accounts of Spain (CRE); and, finally, national estimates published in the Quarterly National Accounts (CNTR). This approach brings together the timeliness of short-term indicators, the structural information provided by the CRE and a quarterly national benchmark that ensures consistency across individual regional estimates. A technical document setting out full details of the methodological change will be published in the coming weeks.
To learn more about how we produce these data, see our AIReF Divulga post: Do you know how much your Autonomous Region’s economy is growing?