In the run up to the 2027 Spanish local elections, various organisations carried out opinion polling to gauge voting intention in local entities in Spain.
The highest percentage figure in each polling survey is displayed with its background shaded in the leading party's colour.
If a tie ensues, this is applied to the figures with the highest percentages.
The "Lead" columns on the right shows the percentage-point difference between the parties with the highest percentages in a given poll.
Opinion poll results for municipalities in each of Spain's autonomous communities, as well as for the Canarian cabildos insulares and the Balearic island councils, may be found through the following links: