San Blas is a local holiday in 152 municipalities in the Spanish working calendar; in 2026 the most common date is 3 February.
Other regions: 8 · 26 municipalities
Verified data
In 2026, the dataset records San Blas as a local holiday in 245 municipalities, accounting for 358,354 residents in the 2025 register. The most common date is 3 February 2026. 16 municipalities set it on another date.
This comparison uses only the official working calendars incorporated into the dataset for each year.
Demographic profile
Age, citizenship, birthplace and average-age structure from the 2025 Annual Population Census.
49.2% / 50.8%
13%
65.6%
21.4%
13.3%
16.5%
45.2 years
Comparison with Spain and with the aggregate of the 14 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 14 regions |
|---|---|---|---|
| Aged 0–14 | 13% | +0.1 pp | -0.1 pp |
| Aged 65+ | 21.4% | +0.7 pp | +1.1 pp |
| Foreign citizenship | 13.3% | -0.8 pp | -1.2 pp |
| Born outside Spain | 16.5% | -2.8 pp | -3.1 pp |
| Weighted mean age | 45.2 years | +0.6 years | +0.9 years |
The largest difference from Spain is in “Born outside Spain”: -2.8 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.
Saint Blaise is the saint whose liturgical memory is celebrated on 3 February and who Christian tradition associates with the protection of the throat.
In the working calendar, San Blas appears as a local holiday — not as a national or general regional holiday. Each municipality may set up to two local holidays a year; This dedication or name is one of those that most municipalities adopt (152 in the reference index).
In 2026, among the municipalities that record it, the most common date is 3 February. 9 municipalities set it on another date. The communities with the most records are Castilla and León, Castilla-La Mancha, Aragón and the Comunitat Valenciana. This page summarises the scope verified in the dataset; It does not add legends or local traditions that have not been checked. The details of each municipality keeps its official source.
When
In 2026 it falls on Tuesday 3 February in most municipalities. 16 move it to another date (when it lands on a weekend or by local agreement).
| Year | Main date | Municipalities |
|---|---|---|
| 2024 | Saturday, 3 February | 54 |
| 2025 | Monday, 3 February | 146 |
| 2026 | Tuesday, 3 February | 245 |
Where it's a holiday
Its local holiday in 2026, by region. Each municipality links to its annual record and the available official source.
Together, they account for 358,354 residents in the INE municipal register at 1 January 2025.
Castilla y León74
Adrada de PirónAldeaseca de AlbaAlmenara de TormesAmavidaArabayona de MógicaArcos de JalónBabilafuenteBlascosanchoBrime de SogBrinconesCarrascal del RíoCasas del PuertoCasasolaCastrobolCastronuñoCernadillaCislaCorbillos de los OterosCorrales de DueroDoñinos de LedesmaFaberoFrechilla de AlmazánFresno el ViejoFresno, ElFuentes de RopelGarcihernándezGeriaGradefesHerguijuela de la SierraHospital de ÓrbigoLanzahítaLarrodrigoLosilla, LaManquillosMaya, LaMombeltránMonleónMontejoMontejo de la Vega de la SerrezuelaMorales de ValverdeMozárbezNava de FranciaPalacios del ArzobispoPalazuelos de MuñóParada de RubialesPascualcoboPeralejos de AbajoPerdigón, ElPovedaRabanalesRetortilloSan Leonardo de YagüeSan Pedro de RozadosSan Vicente de ArévaloSanta Marta de TormesSantibáñez de la SierraSerradilla del ArroyoSerranillosTolocirioTrévagoVadillo de la GuareñaValcabadoValdeavellano de TeraValdevimbreVallesa de la GuareñaVegalatraveVelillaVillagarcía de CamposVillalobónVillalobosVillamandosVillanueva de CarazoVillar del BueyVillasexmirCastilla-La Mancha44
Albalate de las NoguerasAlmonacid de ToledoAlmonacid del MarquesadoAngónArcicóllarAtanzónBalazoteBarriopedroCabanillas del CampoCampillo de la Jara, ElCaracuel de CalatravaCastejónCastilforteCastillo de BayuelaCebollaCervera de los MontesCopernalElche de la SierraFresneda de la SierraFuensalidaHinojosas de CalatravaHontobaHuérmeces del CerroIruestePepinoPeraleja, LaPuebla de BeleñaRecasSanta Cruz de MoyaSaúcaTarazona de la ManchaToba, LaTorrubia del CampoTortueroValdeverdejaValhermoso de la FuenteVillalgordo del MarquesadoVillanueva de ArgecillaVillar de la EncinaVillar del PozoVillarejo de la PeñuelaVillaseca de HenaresVillatoyaYébenes, LosAragón35
AgüeroAladrénAlconchel de ArizaAllozaAltorricónAngüésAtecaAzlorBáguenaBrea de AragónBrotoCalmarzaCaminrealChipranaCinco OlivasCodosCucalónFonzFórnolesHerrera de los NavarrosJarque de la ValJaulínLituénigoMallénMesones de IsuelaMiedes de AragónNogueruelasPerales del AlfambraRobresSalcedilloSanta Cruz de GríoSedilesTorrecilla de AlcañizTososVillanueva de SigenaExtremadura30
Aldeanueva del CaminoAldehuela del JerteBenquerenciaBodonal de la SierraCasillas de CoriaCillerosEljasEsparragalejoGarbayuelaGargüeraGuadalupeMontánchezMontemolínMoralejaNuñomoralOliva de PlasenciaPasarón de la VeraPuerto de Santa CruzRiolobosRiscoRobledillo de GataRobledollanoRomangordoTorilTorreorgazValdecañas de TajoValencia del VentosoValverde de la VeraValverde del FresnoVilla del ReyComunitat Valenciana20
AlbalAlpuenteBejísBorriana/BurrianaChellaEstivellaFuentes de AyódarGestalgarJalanceLlauríMillaresPedreguerPobla del Duc, laPotriesSalzadella, laSaxSiete AguasSuera/SuerasTeresa de CofrentesVilar de CanesAndalucía16
AlbuñánAlmócitaAracenaBenamejíBenaocazDiezmaDúdarGorHuécijaLíjarMadroño, ElMarinaledaRusUrrácalVillanueva de las TorresVíznarOther regions
Comunidad de Madrid5
Comunidad Foral de Navarra2
País Vasco2
Canarias1
Cantabria1
Región de Murcia1
FAQ
In 2026, San Blas is mainly celebrated on 3 February 2026 (Tuesday). Some municipalities move it to another date on the working calendar.
It's a local holiday in 245 municipalities in 2026, accounting for 358,354 residents in the 2025 register; mostly in Castilla y León (74 municipalities).
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
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.