The 2019 Spanish local elections will be held on Sunday, 26 May 2019, to elect all councillors in the municipalities of Spain and all seats in 38 provincial deputations. The elections will be held simultaneously with regional elections in thirteen autonomous communities, as well as local elections in the three foral deputations of the Basque Country, the ten island councils in the Balearic and Canary Islands and the 2019 European Parliament election.
Sources and further reading:
Spain and UK set to give each other’s residents post-Brexit voting rights in local elections
Far right breakthrough in Andalucía send shockwave through Spanish politics
A Darkening Horizon
https://www.jacobinmag.com/2018/12/spain-municipal-elections-vox-far-right