2015 Seville City Council election

The City Council of Seville (Spanish: Ayuntamiento de Sevilla) was the top-tier administrative and governing body of the municipality of Seville, composed of the mayor, the government council and the elected plenary assembly. Voting for the local assembly was on the basis of universal suffrage, which comprised all nationals over eighteen, registered and residing in the municipality of Seville and in full enjoyment of their political rights, as well as resident non-national European citizens and those whose country of origin allowed Spanish nationals to vote in their own elections by virtue of a treaty.[1][2][3]

Local councillors were elected using the D'Hondt method and a closed list proportional representation, with a threshold of 5 percent of valid votes—which included blank ballots—being applied. Parties not reaching the threshold were not taken into consideration for seat distribution.[1][2][3] Councillors were allocated to municipal councils based on the following scale:

The mayor was indirectly elected by the plenary assembly. A legal clause required that mayoral candidates earned the vote of an absolute majority of councillors, or else the candidate of the most-voted party in the assembly was to be automatically appointed to the post. In case of a tie, a toss-up would determine the appointee.[3]

The electoral law provided that parties, federations, coalitions and groupings of electors were allowed to present lists of candidates. However, groupings of electors were required to secure the signature of a determined amount of the electors registered in the municipality for which they sought election. For the case of Seville, as its population was between 300,001 and 1,000,000, at least 5,000 signatures were required. Electors were barred from signing for more than one list of candidates. Concurrently, parties and federations intending to enter in coalition to take part jointly at an election were required to inform the relevant Electoral Commission within ten days of the election being called.[1][2]

The table below lists voting intention estimates 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" column on the right shows the percentage-point difference between the parties with the highest percentages in a given poll. When available, seat projections are also displayed below the voting estimates in a smaller font. 16 seats were required for an absolute majority in the City Council of Seville (17 until 1 January 2015).

Color key:

  Poll conducted after legal ban on opinion polls   Exit poll

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout			IULV						Lead
2015 municipal election	24 May 2015	N/A	59.5	33.1 12	32.2 11	6.0 2	1.4 0	0.8 0	9.0 3	9.3 3	4.1 0	0.9
TNS Demoscopia/RTVA[p 1][p 2]	24 May 2015	?	?	? 10/12	? 12/14	6.7 1/2	–	–	? 3/4	9.6 3/4	–	?
GAD3/Antena 3[p 3]	11–22 May 2015	?	?	? 11/12	? 13/14	? 0/1	–	–	? 3/4	? 2	–	?
Sigma Dos/El Mundo[p 4][p 5]	13–14 May 2015	500	?	34.8 12/13	32.6 11/12	7.4 2	–	–	6.1 2	10.4 3	4.2 0	2.2
Deimos Estadística[p 6][p 7]	11–14 May 2015	806	?	30.0 11	31.7 11	6.9 2	1.7 0	1.4 0	8.1 3	12.8 4	3.6 0	1.7
MyWord/Cadena SER[p 8][p 9]	27 Apr–14 May 2015	800	?	31.6 10/12	32.2 10/12	4.3 0/1	0.7 0	1.3 0	15.0 4/6	11.4 4	[lower-alpha 1]	0.6
JM&A/Público[p 10]	12 May 2015	?	?	? 13	? 10	–	–	–	? 6	? 4	–	?
JM&A/Público[p 11][p 12]	3 May 2015	?	?	28.1 10	30.3 10	5.9 2	2.0 0	0.5 0	17.2 6	14.2 5	[lower-alpha 1]	2.2
IMC/ABC[p 13]	29–30 Apr 2015	410	?	33.4 12/13	30.2 10/11	5.2 0/1	–	–	11.0 3/4	13.2 4/5	[lower-alpha 1]	3.2
Commentia/Grupo Joly[p 14][p 15]	27–29 Apr 2015	401	?	35.5 12	31.3 10	4.9 0/1	–	–	13.1 4/5	11.5 4	[lower-alpha 1]	4.2
CIS[p 16][p 17]	23 Mar–19 Apr 2015	997	?	32.4 11/12	28.5 10	5.0 1	–	1.0 0	w.GS	12.6 4	13.4 4/5	3.9
Sigma Dos/El Mundo[p 18][p 19]	26–27 Mar 2015	500	?	31.3 10/11	33.2 11/12	4.6 0/1	–	–	14.6 4/5	11.9 4	[lower-alpha 1]	1.9
2015 regional election[4]	22 Mar 2015	N/A	68.3	27.1 9	30.8 11	5.4 1	1.0 0	2.1 0	18.0 6	11.5 4	–	3.7
2014 EP election[5]	25 May 2014	N/A	47.6	27.8 11	30.0 12	9.6 3	1.4 0	8.0 3	9.8 4	2.3 0	–	2.2
Nexo[p 20][p 21]	24 Mar–4 Apr 2014	402	54.2	42.9 16/18	29.2 11/12	9.3 3/4	–	5.3 2	–	–	–	13.7
2012 regional election[6]	25 Mar 2012	N/A	65.1	42.8 16	37.4 14	9.4 3	2.5 0	4.6 0	–	–	–	5.1
2011 general election[7]	20 Nov 2011	N/A	71.1	44.3 16	36.4 13	6.6 2	1.8 0	6.8 2	–	–	–	7.9
2011 municipal election	22 May 2011	N/A	62.7	49.3 20	29.5 11	7.1 2	4.8 0	3.3 0	–	–	–	19.8

Opinion poll sources

Other