Sources
Where the numbers come from
Every figure in the Index traces to a published source. Spanish public-sector data is reused under its publishers' terms; town summaries come from Wikipedia under CC BY-SA 4.0; map boundaries are Natural Earth (public domain).
Tax
- IBI urban rates by municipality (Imposición local)
- Tax law and parameters behind the Tertulia Engine
Healthcare
- Catálogo Nacional de Hospitales
- Tertulia register of international patient services
Connectivity
- US routes and feeder flight times (sources per route in the Tertulia route table)
Climate
- Climate normals (AEMET OpenData)
Cost of living
- No-copay private health insurance premiums by province
- Supermarket price survey 2026
Housing
Integration
- Padrón continuo, population by nationality and age (table 33571)
Lifestyle
- Restaurants, cafés, bars and culture venues (ODbL)
Aging & care
Safety
- Balance de Criminalidad
- Anuario estadístico de accidentes
- Tourist overnight stays (EOH, EOAT) and airport passengers, for population present
Governance
Town summaries
- Town summaries, fetched by your browser (CC BY-SA 4.0)
Map
- Admin-1 boundaries (public domain)
Every dimension
How each source is used, and the scoring method, are on the Method page. Spotted a figure that doesn't match its source? Challenge a number.