Opinion polling for the 2015 Spanish local elections

Polls are listed in reverse chronological order, showing the most recent first and using the dates when the survey fieldwork was done, as opposed to the date of publication. Where the fieldwork dates are unknown, the date of publication is given instead. 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.

Nationwide polling

The table below lists nationwide voting intention estimates. Refusals are generally excluded from the party vote percentages, while question wording and the treatment of "don't know" responses and those not intending to vote may vary between polling organisations.

Color key:

  Poll conducted after legal ban on opinion polls

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout						PNV					Lead
2015 local elections	24 May 2015	—	64.8	27.0	25.0	5.4	3.0	1.0	1.8	1.5	3.6	8.6*	6.6	2.0
GAD3/Antena 3[1]	11–22 May 2015	?	?	27.0	25.0	5.0	–	–	–	–	–	10.0	7.0	2.0
2011 local elections	22 May 2011	—	66.2	37.5	27.8	7.4	3.5	2.1	1.4	1.4	1.2	–	–	9.7

Sub-national polling