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.
Other regions: 6 · 9 municipalities
Verified data
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.
Demographic profile
Age, citizenship, birthplace and average-age structure from the 2025 Annual Population Census.
49.3% / 50.7%
13.5%
66.2%
20.4%
13.4%
16.9%
44.5 years
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.
When
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 |
Traceability
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.
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 235,557 residents in the INE municipal register at 1 January 2025.
Castilla y León49
Adrada de PirónAldeaseca de AlbaAlmenara de TormesAmavidaArcos de JalónBlascosanchoBrime de SogCarrascal del RíoCasas del PuertoCasasolaCastronuñoCernadillaCislaCorbillos de los OterosFaberoFrechilla de AlmazánFresno, ElFuentes de RopelGeriaGradefesHospital de ÓrbigoLarrodrigoLosilla, LaMombeltránMontejo de la Vega de la SerrezuelaMorales de ValverdePalazuelos de MuñóParada de RubialesPascualcoboPeralejos de AbajoPerdigón, ElPovedaRabanalesSan Leonardo de YagüeSan Vicente de ArévaloSanta Marta de TormesSerradilla del ArroyoTolocirioTrévagoVadillo de la GuareñaValcabadoValdeavellano de TeraValdevimbreVallesa de la GuareñaVegalatraveVillalobosVillamandosVillanueva de CarazoVillar del BueyCastilla-La Mancha39
Albalate de las NoguerasAlmonacid de ToledoAlmonacid del MarquesadoAngónArcicóllarAtanzónBalazoteCabanillas 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 MoyaTarazona de la ManchaToba, LaTorrubia del CampoTortueroValhermoso de la FuenteVillanueva de ArgecillaVillar de la EncinaVillar del PozoVillaseca de HenaresVillatoyaYébenes, LosAragón16
AgüeroAladrénAzlorBrotoCalmarzaChipranaCinco OlivasCodosFonzJaulínLituénigoRobresSanta Cruz de GríoSedilesTososVillanueva de SigenaComunitat Valenciana15
AlbalAlpuenteChellaEstivellaGestalgarJalanceLlauríMillaresPedreguerPobla del Duc, laPotriesSaxSiete AguasSuera/SuerasTeresa de CofrentesOther regions
Comunidad de Madrid3
Comunidad Foral de Navarra2
Andalucía1
Cantabria1
País Vasco1
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 136 municipalities in 2026, accounting for 235,557 residents in the 2025 register; mostly in Castilla y León (49 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.