--- title: "San Blas 2026: when and where it's a public holiday — festivos.io" description: "San Blas is a local holiday in 136 municipalities, accounting for 235,557 residents in the 2025 register. In 2026 it falls on 3 February." source: "https://festivos.io/en/holiday/san-blas" --- # San Blas San Blas is a local holiday in 136 municipalities — 235,557 residents in the 2025 register. In 2026 it falls on 3 February; below, where and when it's celebrated. - **Level:** Local holiday - **Date 2026:** Tuesday 3 February - **Municipalities:** 136 - **Residents · 2025 register:** 235,557 - **Where most:** Castilla y León (49) ## San Blas in the working calendar In 2026, the dataset records San Blas as a local holiday in 136 municipalities, accounting for 235,557 residents in the 2025 register. The most common date is 3 February 2026. 9 municipalities set it on another date. This comparison uses only the official working calendars incorporated into the dataset for each year. ## Demographics of the covered population Age, citizenship, birthplace and average-age structure from the 2025 Annual Population Census. | Demographic profile | % | | --- | --- | | Women / men | 49.3% / 50.7% | | Aged 0–14 | 13.5% | | Aged 15–64 | 66.2% | | Aged 65+ | 20.4% | | Foreign citizenship | 13.4% | | Born outside Spain | 16.9% | | Weighted mean age | 44.5 years | ### How it differs from its surroundings Comparison with Spain and with the aggregate of the 12 regions where it is observed. All five comparisons are population-weighted and use only the 2025 Annual Census. A positive sign means the covered population has a higher value than the benchmark. | Demographic profile | Covered population | Compared with Spain | Compared with its 12 regions | | --- | --- | --- | --- | | Aged 0–14 | 13.5% | +0.5 pp | +0.3 pp | | Aged 65+ | 20.4% | -0.3 pp | -0.2 pp | | Foreign citizenship | 13.4% | -0.6 pp | 0 pp | | Born outside Spain | 16.9% | -2.3 pp | -1.1 pp | | Weighted mean age | 44.5 years | 0 years | +0.1 years | The largest difference from Spain is in “Born outside Spain”: -2.3 pp. Sex comes from the 2025 municipal register; all other metrics come from the 2025 Annual Census. Each percentage uses the total from its own statistical operation. [INE municipal tables 68535 and 68541](). ## Dates of San Blas In 2026 it falls on Tuesday 3 February in most municipalities. 9 move it to another date (when it lands on a weekend or by local agreement). | Year | Main date | Municipalities | | --- | --- | --- | | 2024 | Saturday, 3 February | 48 | | 2025 | Monday, 3 February | 109 | | 2026 | Tuesday, 3 February | 136 | ## Official sources Official documents linked by the 2026 records. Dates can vary by territory; each municipality page preserves its specific source. Population: official municipal-register figures at 1 January 2025. [INE](). [INE municipal tables 68535 and 68541](). - [Comunidad de Madrid — Festivos locales (datos abiertos)]() - [Generalitat Valenciana — Resolución de fiestas locales (DOGV)]() - [Gobierno de Aragón — Calendario laboral (Aragón Open Data)]() - [Gobierno de Cantabria — Calendario laboral (BOC)]() - [Gobierno de La Rioja — Calendario de fiestas locales (BOR)]() - [Gobierno de Navarra — Fiestas locales (datos abiertos)]() - [Gobierno Vasco — Calendario laboral (Open Data Euskadi)]() - [Junta de Andalucía — Calendario de fiestas locales (datos abiertos)]() - [Junta de Castilla y León — Fiestas locales (datos abiertos)]() - [Junta de Comunidades de Castilla-La Mancha — Calendario de fiestas locales (DOCM/datos abiertos)]() - [Junta de Extremadura — Resolución de fiestas locales (DOE)]() - [Región de Murcia — Calendario laboral (BORM)]() ## 136 municipalities celebrate San Blas Its local holiday in 2026, by region. Each municipality links to its annual record and the available official source. Together, they account for 235,557 residents in the INE municipal register at 1 January 2025. **Castilla y León** (49): Adrada de Pirón, Aldeaseca de Alba, Almenara de Tormes, Amavida, Arcos de Jalón, Blascosancho, Brime de Sog, Carrascal del Río, Casas del Puerto, Casasola, Castronuño, Cernadilla, Cisla, Corbillos de los Oteros, Fabero, Frechilla de Almazán, Fresno, El, Fuentes de Ropel, Geria, Gradefes, Hospital de Órbigo, Larrodrigo, Losilla, La, Mombeltrán, Montejo de la Vega de la Serrezuela, Morales de Valverde, Palazuelos de Muñó, Parada de Rubiales, Pascualcobo, Peralejos de Abajo, Perdigón, El, Poveda, Rabanales, San Leonardo de Yagüe, San Vicente de Arévalo, Santa Marta de Tormes, Serradilla del Arroyo, Tolocirio, Trévago, Vadillo de la Guareña, Valcabado, Valdeavellano de Tera, Valdevimbre, Vallesa de la Guareña, Vegalatrave, Villalobos, Villamandos, Villanueva de Carazo, Villar del Buey **Castilla-La Mancha** (39): Albalate de las Nogueras, Almonacid de Toledo, Almonacid del Marquesado, Angón, Arcicóllar, Atanzón, Balazote, Cabanillas del Campo, Campillo de la Jara, El, Caracuel de Calatrava, Castejón, Castilforte, Castillo de Bayuela, Cebolla, Cervera de los Montes, Copernal, Elche de la Sierra, Fresneda de la Sierra, Fuensalida, Hinojosas de Calatrava, Hontoba, Huérmeces del Cerro, Irueste, Pepino, Peraleja, La, Puebla de Beleña, Recas, Santa Cruz de Moya, Tarazona de la Mancha, Toba, La, Torrubia del Campo, Tortuero, Valhermoso de la Fuente, Villanueva de Argecilla, Villar de la Encina, Villar del Pozo, Villaseca de Henares, Villatoya, Yébenes, Los **Aragón** (16): Agüero, Aladrén, Azlor, Broto, Calmarza, Chiprana, Cinco Olivas, Codos, Fonz, Jaulín, Lituénigo, Robres, Santa Cruz de Grío, Sediles, Tosos, Villanueva de Sigena **Comunitat Valenciana** (15): Albal, Alpuente, Chella, Estivella, Gestalgar, Jalance, Llaurí, Millares, Pedreguer, Pobla del Duc, la, Potries, Sax, Siete Aguas, Suera/Sueras, Teresa de Cofrentes **Extremadura** (5): Bodonal de la Sierra, Esparragalejo, Guadalupe, Montemolín, Valencia del Ventoso **Comunidad de Madrid** (3): Cubas de la Sagra, Miraflores de la Sierra, Perales de Tajuña **La Rioja** (3): Cornago, Entrena, Zarratón **Comunidad Foral de Navarra** (2): Milagro, Peralta/Azkoien **Andalucía** (1): Aracena **Cantabria** (1): Tudanca **País Vasco** (1): Alegría-Dulantzi **Región de Murcia** (1): San Javier ## About San Blas ### When is San Blas in 2026? In 2026, San Blas is mainly celebrated on 3 February 2026 (Tuesday). Some municipalities move it to another date on the working calendar. ### In how many municipalities is San Blas a holiday? It's a local holiday in 136 municipalities in 2026, accounting for 235,557 residents in the 2025 register; mostly in Castilla y León (49 municipalities). ### Is San Blas a national holiday? No. San Blas is a local-level holiday: it's only a non-working day in the municipalities that set it as their local festival; each keeps its official source. ## Other holidays - Saint Isidore the Laborer (488 municipalities) - San Roque (278 municipalities) - Segona Pasqua (189 municipalities) - Martes de Entroido (186 municipalities) - San Isidro Labrador (163 municipalities) - San Vicente Ferrer (142 municipalities) - San Pedro (136 municipalities) - San Miguel (132 municipalities) Per-municipality data with its official source (regional gazette). Every date is verifiable on the municipality page. Data from festivos.io — CC BY 4.0. --- Data: festivos.io — CC BY 4.0. Official source: State Official Gazette (BOE) and regional gazettes (Law 37/2007).