--- title: "Saint Isidore the Laborer 2026: when and where it's a public holiday — festivos.io" description: "Saint Isidore the Laborer is a local holiday in 399 municipalities, accounting for 809,911 residents in the 2025 register. In 2026 it falls on 15 May." source: "https://festivos.io/en/holiday/san-isidro" --- # Saint Isidore the Laborer Saint Isidore the Laborer, patron of Madrid and of farmers, falls every 15 May and is one of the most widespread local holidays in inland Spain. - **Level:** Local holiday - **Date 2026:** Friday 15 May - **Municipalities:** 399 - **Residents · 2025 register:** 809,911 - **Where most:** Castilla y León (206) ## Saint Isidore the Laborer in the working calendar In 2026, the dataset records Saint Isidore the Laborer as a local holiday in 399 municipalities, accounting for 809,911 residents in the 2025 register. The most common date is 15 May 2026. 3 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 | 50.2% / 49.8% | | Aged 0–14 | 13.9% | | Aged 15–64 | 66.5% | | Aged 65+ | 19.6% | | Foreign citizenship | 12.8% | | Born outside Spain | 17.5% | | Weighted mean age | 43.9 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 | 13.9% | +1 pp | +0.9 pp | | Aged 65+ | 19.6% | -1.1 pp | -1.4 pp | | Foreign citizenship | 12.8% | -1.2 pp | -0.3 pp | | Born outside Spain | 17.5% | -1.8 pp | -0.2 pp | | Weighted mean age | 43.9 years | -0.6 years | -0.8 years | The largest difference from Spain is in “Born outside Spain”: -1.8 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](). ## What is Saint Isidore the Laborer Isidore de Merlo y Quintana (Madrid, c. 1082–1172) was a farm labourer who worked the lands of the Vargas family on the outskirts of the town for decades. Tradition paints him as a man of simple, deep faith: it is said that angels ploughed in his place while he prayed, that he made water spring from the ground to save his son who had fallen into a well, and that his food multiplied so he could share it with the poor. Married to María Toribia —Saint Mary of the Head— he embodies the everyday holiness of the countryside. Beatified in 1619 and canonized in 1622 by Gregory XV —in the same ceremony as Ignatius of Loyola, Francis Xavier and Teresa of Ávila— he was set as the patron of Madrid and of farmers. His feast, 15 May, opens the spring pilgrimage season: in the capital it spills onto the meadow of San Isidro, with chulapos, the chotis dance and the saint's water; in hundreds of inland towns it is the main festival, tied to the farming cycle and to prayers for good harvests. _Patron of Madrid, of farmers and field workers. Invoked for rain and a good harvest._ ## Dates of Saint Isidore the Laborer In 2026 it falls on Friday 15 May in most municipalities. 3 move it to another date (when it lands on a weekend or by local agreement). | Year | Main date | Municipalities | | --- | --- | --- | | 2024 | Wednesday, 15 May | 290 | | 2025 | Thursday, 15 May | 382 | | 2026 | Friday, 15 May | 399 | ## 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)]() - [Principado de Asturias — Calendario de festivos (datos abiertos)]() ## 399 municipalities celebrate Saint Isidore the Laborer Its local holiday in 2026, by region. Each municipality links to its annual record and the available official source. Together, they account for 809,911 residents in the INE municipal register at 1 January 2025. **Castilla y León** (206): Abajas, Adradas, Aguilafuente, Alaejos, Aldealafuente, Aldealcorvo, Alentisque, Alfaraz de Sayago, Aliud, Almajano, Altable, Ameyugo, Arcenillas, Arcos de la Polvorosa, Arenillas, Arevalillo, Arevalillo de Cega, Arraya de Oca, Aspariegos, Ausines, Los, Baquerín de Campos, Baraona, Bárcena de Campos, Barcial del Barco, Barcones, Barrio de Muñó, Barromán, Becilla de Valderaduey, Belbimbre, Belorado, Beratón, Boadilla de Rioseco, Bozoó, Buenavista de Valdavia, Buniel, Bustillo del Oro, Bustillo del Páramo, Busto de Bureba, Caballar, Cabañas de Sayago, Cabezón de Valderaduey, Cabrejas del Campo, Cabreros del Río, Cacabelos, Calabazas de Fuentidueña, Caltojar, Campo de San Pedro, Candilichera, Carbellino, Cardeñajimeno, Castilfrío de la Sierra, Castillejo de Mesleón, Castrillo de la Guareña, Castro de Fuentidueña, Castrodeza, Castrojimeno, Cebanico, Cerratón de Juarros, Cervera de Pisuerga, Ciguñuela, Cogeces de Íscar, Cogeces del Monte, Collado Hermoso, Condado de Castilnovo, Congosto de Valdavia, Coomonte, Coreses, Corral de Ayllón, Cozuelos de Fuentidueña, Cubillo del Campo, Cubo de Bureba, Cuevas de Provanco, Dehesa de Montejo, Donhierro, Duruelo, Escarabajosa de Cabezas, Escobar de Polendos, Escobosa de Almazán, Espirdo, Flores de Ávila, Frechilla, Fresno de la Ribera, Fuente de Santa Cruz, Fuentepiñel, Fuentepinilla, Fuentesecas, Fuentestrún, Gallegos del Pan, Gavilanes, Geria, Granja de Moreruela, Gutierre-Muñoz, Herrera de Valdecañas, Higuera de las Dueñas, Hormazas, Las, Huertos, Los, Ibeas de Juarros, Iglesias, Jambrina, Junciana, Labajos, Laguna Dalga, Laguna de Negrillos, Langa, Llanos de Tormes, Los, Maderal, El, Maire de Castroponce, Malva, Manganeses de la Lampreana, Martín Miguel, Mata de Cuéllar, Medina de Pomar, Melque de Cercos, Merindad de Cuesta-Urria, Merindad de Montija, Merindad de Sotoscueva, Merindad de Valdivielso, Micieces de Ojeda, Migueláñez, Miño de Medinaceli, Monfarracinos, Monterrubio, Moradillo de Roa, Navares de Ayuso, Navas de San Antonio, Navatejares, Noviercas, Olmillos de Castro, Pajares de los Oteros, Palazuelos de Muñó, Partido de la Sierra en Tobalina, Pedrosa de Río Úrbel, Peleas de Abajo, Pereruela, Piedrahita de Castro, Pinarejos, Pozaldez, Pozalmuro, Prádanos de Ojeda, Puebla de Arganzón, La, Quintanaélez, Quintanilla de Onsoña, Quintanilla de Trigueros, Quintanilla de Urz, Rábanos, Los, Rello, Revilla y Ahedo, La, Riba de Escalote, La, Rivilla de Barajas, Roales de Campos, Roelos de Sayago, San Agustín del Pozo, San Cebrián de Mazote, San Pedro de Gaíllos, Santa María de la Vega, Santa María del Campo, Santibáñez de Vidriales, Santo Domingo de Pirón, Sasamón, Sauquillo de Cabezas, Sebúlcor, Sequera de Fresno, Sequera de Haza, La, Soto de Cerrato, Suellacabras, Tábara, Tardajos, Toral de los Guzmanes, Torlengua, Torrecaballeros, Torreiglesias, Trévago, Urueñas, Vadillo de la Guareña, Valdefinjas, Valdegeña, Valdeprados, Valderrodilla, Valdevacas y Guijar, Vallarta de Bureba, Valle de Losa, Valle de Tabladillo, Valluércanes, Valseca, Veganzones, Vegas del Condado, Velayos, Villadiego, Villaescusa la Sombría, Villafáfila, Villafranca de Duero, Villafruela, Villalba de la Lampreana, Villaldemiro, Villalube, Villamandos, Villamejil, Villamor de los Escuderos, Villanueva de la Condesa, Villárdiga, Villares de Soria, Los, Villaveza del Agua, Villazala, Villazopeque, Yanguas de Eresma, Zael **Castilla-La Mancha** (78): Abánades, Agudo, Alarilla, Alatoz, Albaladejo, Albaladejo del Cuende, Albalate de las Nogueras, Alberca de Záncara, La, Alcubillas, Almendral de la Cañada, Almonacid de Toledo, Almonacid del Marquesado, Almuradiel, Arandilla del Arroyo, Arcas, Arcicóllar, Arenas de San Juan, Argamasilla de Alba, Armuña de Tajuña, Buenache de Alarcón, Burguillos de Toledo, Campillo de Altobuey, Camuñas, Canalejas del Arroyo, Casarrubios del Monte, Casas de Benítez, Casas de Juan Núñez, Casasbuenas, Casasimarro, Castejón de Henares, Cogolludo, Cózar, Cuerva, Enguídanos, Escariche, Frontera, La, Fuente de Pedro Naharro, Fuentelespino de Haro, Gálvez, Herrera, La, Hinojosos, Los, Horcajo de los Montes, Manzaneque, Marchamalo, Mascaraque, Mota de Altarejos, Munera, Navas de Jorquera, Olivares de Júcar, Olmeda de la Cuesta, Osa de la Vega, Paredes, Pozo Cañada, Quintanar de la Orden, Quintanar del Rey, Recueja, La, Sacecorbo, Salobre, Santa María de los Llanos, Tembleque, Torre de Juan Abad, Torrenueva, Totanés, Tribaldos, Turleque, Valdearenas, Valdepeñas de la Sierra, Valderrebollo, Valenzuela de Calatrava, Valverdejo, Villa de Don Fadrique, La, Villaconejos de Trabaque, Villalgordo del Júcar, Villamalea, Villapalacios, Villar del Infantado, Villatoya, Villavaliente **La Rioja** (25): Alfaro, Almarza de Cameros, Arenzana de Abajo, Arenzana de Arriba, Azofra, Baños de Río Tobía, Bobadilla, Briñas, Cárdenas, Cenicero, Cihuri, Fonzaleche, Gimileo, Hervías, Ledesma de la Cogolla, Ochánduri, Ocón, Pedroso, Rincón de Soto, San Millán de Yécora, San Torcuato, Tudelilla, Uruñuela, Villamediana de Iregua, Villarta-Quintana **Aragón** (23): Ainzón, Albalatillo, Alcampell, Alfamén, Almonacid de la Cuba, Almudévar, Aranda de Moncayo, Bailo, Bárcabo, Candasnos, Capella, Castigaleu, Codo, Cubel, Fabara, Moyuela, Pedrola, Perdiguera, Plenas, Sangarrén, Sariñena, Vera de Moncayo, Villanueva de Gállego **Comunidad de Madrid** (23): Ajalvir, Alcobendas, Bustarviejo, Campo Real, Colmenarejo, Corpa, Coslada, Galapagar, Guadalix de la Sierra, Horcajo de la Sierra-Aoslos, Morata de Tajuña, Navalcarnero, Quijorna, Rivas-Vaciamadrid, Santos de la Humosa, Los, Sevilla la Nueva, Tielmes, Torrejón de Velasco, Valdepiélagos, Valverde de Alcalá, Venturada, Villanueva de la Cañada, Villar del Olmo **Extremadura** (20): Burguillos del Cerro, Calamonte, Granja de Torrehermosa, Guareña, Lobón, Mirandilla, Monterrubio de la Serena, Oliva de Mérida, Puebla de la Reina, Pueblonuevo del Guadiana, Roca de la Sierra, La, Santa Amalia, Santos de Maimona, Los, Siruela, Talavera la Real, Torremayor, Torremejía, Valdelacalzada, Villafranca de los Barros, Villalba de los Barros **Cantabria** (7): Cillorigo de Liébana, Santiurde de Toranzo, Soba, Suances, Valdeprado del Río, Valderredible, Voto **Comunitat Valenciana** (6): Camporrobles, San Antonio de Benagéber, Sinarcas, Teresa, Verger, el, Villargordo del Cabriel **País Vasco** (4): Campezo/Kanpezu, Elvillar/Bilar, Mendexa, Zeanuri **Andalucía** (3): Benatae, Chilluévar, Orcera **Comunidad Foral de Navarra** (3): Armañanzas, Berbinzana, Lazagurría **Principado de Asturias** (1): Belmonte de Miranda ## About Saint Isidore the Laborer ### When is Saint Isidore the Laborer in 2026? In 2026, Saint Isidore the Laborer is mainly celebrated on 15 May 2026 (Friday). Some municipalities move it to another date on the working calendar. ### In how many municipalities is Saint Isidore the Laborer a holiday? It's a local holiday in 399 municipalities in 2026, accounting for 809,911 residents in the 2025 register; mostly in Castilla y León (206 municipalities). ### Is Saint Isidore the Laborer a national holiday? No. Saint Isidore the Laborer 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 - San Roque (278 municipalities) - Segona Pasqua (189 municipalities) - Martes de Entroido (186 municipalities) - San Isidro Labrador (163 municipalities) - San Blas (151 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).