Madrid is both the capital of Spain and the capital of its own single-province autonomous community, the Comunidad de Madrid. The city of Madrid had an officially certified population of 3,506,730 as of 1 January 2025 (INE Padrón continuo, table 2881), the highest figure in the municipality's history. The Ayuntamiento de Madrid's own press release for the same reference date cited a very slightly higher preliminary count of 3,527,924 residents (+67,433 over the year, +2.02%) — the two figures differ by roughly 21,000 people, a normal gap between a city hall's working padrón count and INE's nationally reconciled cifra oficial. Either way, Madrid is comfortably Spain's most populous municipality.
For relocators, Madrid is Spain's political, financial and corporate capital: it hosts the seat of national government, the Bolsa de Madrid stock exchange, and — per the Comunidad de Madrid's own economic reporting, citing INE's Contabilidad Regional de España — generated 19.6% of Spain's national GDP in 2023, with GDP per capita of €44,755 in 2024, 37.1% above the national average. This concentration of head offices, ministries and finance-sector jobs makes Madrid the default landing spot for relocating professionals, especially in corporate, legal, tech and finance roles. Connectivity reinforces this: Adolfo Suárez Madrid-Barajas Airport handled a record 68,179,054 passengers in 2025 (Aena), and Madrid sits at the hub of Spain's AVE high-speed rail network operated over infrastructure managed by Adif, with direct high-speed lines radiating out to Barcelona, Valencia, Málaga, Seville and the French border.
Key Facts
Administrative structure: Madrid is a single-province autonomous community (Comunidad de Madrid) — the community's borders are identical to the province's, an arrangement unique among Spain's larger regions. The city of Madrid is simultaneously the national capital and the regional capital.
Population (city, INE, 1 January 2025): 3,506,730 — 1,645,087 men / 1,861,643 women. The Ayuntamiento de Madrid's own count for the same date was 3,527,924 (per its official statistics office), a minor discrepancy pending the usual INE reconciliation process common to large municipalities.
Economy: Financial and corporate capital of Spain; per Comunidad de Madrid citing INE regional accounts, the region produced 19.6% of national GDP in 2023 and had the highest GDP per capita of any Spanish region in 2024 (€44,755, +37.1% vs. national average).
International residents: Per the Ayuntamiento de Madrid's 1 January 2025 padrón figures, roughly 20% of the city's registered population holds foreign nationality (30.2% were born abroad).
Connectivity: Adolfo Suárez Madrid-Barajas Airport — 68,179,054 passengers in 2025, a historic record (Aena official 2025 traffic report). Madrid is the central hub of Adif's high-speed AVE network, with direct services to Barcelona, Valencia, Seville, Málaga and other major cities.
Climate (AEMET, Madrid Retiro station, 1981-2010 normals, light touch — see the dedicated weather document for detail): continental Mediterranean climate with cold-ish winters and hot, dry summers. Annual average temperature 15.0°C, average maximum 19.9°C, average minimum 10.1°C, annual precipitation 421 mm.
Tax/administrative quirk: Madrid has no co-official regional language — Castilian Spanish is the sole official language of public administration, unlike Cataluña, the Comunitat Valenciana or the Balearics. Property transfer tax (ITP) and other regional taxes are set by the Comunidad de Madrid and vary from other regions — see NomadPilot's closing-costs documentation for the specific current rate rather than re-deriving it here.
Unconfirmed: The often-cited "1,300 multinational company headquarters in Madrid, 40% of Spain's total" statistic traces to a 2014 Ayuntamiento de Madrid press release; no more recent official update to this specific figure was found during this research session, so treat it as dated rather than current.