The METCAP methodology (Methodology for Quarterly Estimation by Autonomous Communities of GDP), developed by the institution itself, provides the first freely accessible estimate of this data in Spain. The quarterly update is available on the AIReF website. These estimates are made after the National Statistics Institute (INE) publishes the advance quarterly GDP figure for Spain, which occurred on October 30, 2026.
In year-on-year terms, the Balearic Islands lead GDP growth with 3.4%. They are followed by the Community of Madrid and the Valencian Community, both at 2.9%. On the other hand, Extremadura and the Principality of Asturias show the lowest growth figures, at 2.1%.
Regarding quarterly growth rates, the Balearic Islands also stand out with 1.1% growth, followed by the Canary Islands with 0.8%. At the lower end are the Principality of Asturias, Extremadura, Basque Country, Aragon, La Rioja, Navarra, Castilla y León, and Galicia, all with 0.5% growth.
AIReF provides a user-friendly web interface for comparing data between Autonomous Communities and with the Spanish GDP figure. The methodology combines monthly economic indicators, annual data from the Regional Accounts of Spain (CRE), and national estimates from the Quarterly National Accounts (CNTR) to ensure the consistency and timeliness of regional estimates.
