According to legends, the current church of St. George was originally founded as a monastery by English monks fleeing from religious persecution.

In neighbouring Cantabria, Burgos and Araba exist several towns with variations of the same name: Santurde, Santiurde de Reinosa and Santurdejo.

On 14 November 1980, Vicente Zorita Alonso—a candidate for the Basque Parliament and a long time administrative employee—was murdered by ETA as a statement against political supporters of the oligarchy.

It is a structural type relief composed of urgonian limestone from the Cretaceous period found all throughout Punta Lucero-Serantes, smoothly inclined towards the Estuary of Bilbao.

Santurtzi City Council (2023-2027):[4] Mayor Councillors The life in the area is focused on the sea, which inspires its work and its leisure.