Altsasu/Alsasua Altsasu Alsasua | |
|---|---|
 Aerial view of Altsasu/Alsasua | |
 Flag  Coat of arms | |
  Altsasu/Alsasua Location of Altsasu/Alsasua within Navarre  Altsasu/Alsasua Location of Altsasu/Alsasuawithin Spain | |
| Coordinates: 42°53′43″N2°10′8″W / 42.89528°N 2.16889°W | |
| Country |  Spain |
| Autonomous community |  Navarre |
| Province | Navarre |
| Comarca/Eskualdea | La Barranca/Sakana |
| Government | |
| • Alcalde (Mayor) | Javier Ollo Martínez [1] (Geroa Bai) |
| Area | |
• Total | 26.72 km2 (10.32 sq mi) |
| Population (2018) [2] | |
• Total | 7,407 |
| • Density | 280/km2 (720/sq mi) |
| (INE) | |
| Demonym | alsasuarra |
| Time zone | UTC+1 (CET) |
| • Summer (DST) | UTC+2 (CEST) |
| Postal code | 31800 |
Alsasua (in Spanish; Altsasu in Basque; official name: Altsasu/Alsasua) is a town located in the autonomous community of Navarre, northern Spain. Its population in 2017 was 7,419. [3] The Battle of Alsasua took place here in 1834. 30 years later the town turned into a railway hub, transforming its demography, economy, and cultural landscape. In 2016, a fight erupting in a bar escalated into an Audiencia Nacional judicial case that stirred the town. The bus and coach building company Sunsundegui had its factory in the town and was a major local employer, but the company closed in 2025.
