Founded in 1909, it currently plays in Segunda Federación – Group 2, holding home games at Campo Municipal de Gobela, with a 2,000-seat capacity.

[5] In 1903 the same group would win the "Copa Athletic", the biggest local tournament at the juvenile level, as well as play a match against Club Ciclista de San Sebastián, the precursor to Real Sociedad.

[11] This qualified them to that year's Copa del Rey, where it reached the final in Barcelona, losing 1–2 against Madrid FC after extra time.

[4] The following year, when the Spain national team were runners-up at their international debut in the Olympic Games, the squad included three players from the club, Francisco Pagazaurtundúa, Félix Sesúmaga, and Pedro Vallana.

[4] Arenas Getxo appeared in Spanish Cup finals on two further occasions, losing against Barcelona in 1925 (0–2) and two years later against Real Unión (0–1), the latter in the only all-Basque decisive match in the competition's history not to feature Athletic Bilbao.

After playing in La Liga's first seven editions – finishing third in 1929–30 – and the following six seasons in the second division, the club has spent the vast majority of its existence competing at the fourth level, with the occasional visit to the regional leagues.