Opinion polling for the 2017 Portuguese local elections explained

In the run up to the 2017 Portuguese local elections, various organisations carried out opinion polling to gauge voting intention in several municipalities across Portugal. Results of such polls are displayed in this article. The date range for these opinion polls are from the previous local elections, held on 29 September 2013, to the day the next elections were held, on 1 October 2017.

Polling

Alcobaça

Polling firm/Link	Fieldwork date	Sample size	PSD	PS	CDS	CDU	BE		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			44.0	21.6	15.3	7.6	3.0	8.6	22.4
IPOM Seat projection	20–21 Sep 2017	714	44.4 4	20.4 1 / 2	14.7 1	10.2 0 / 1	2.6 –	7.6 –	24.0
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			36.1	19.8	17.5	12.0	2.1	12.5	16.3

Aveiro

Polling firm/Link	Fieldwork date	Sample size	PSD CDS PPM	PS	IND	BE	CDU		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			48.5	31.0		6.8	4.0	9.7	17.5
UA-CIMAD Seat projection	14–20 Sep 2017	500	54.4 6 / 7	12.7 2 / 3		2.6 –	3.1 –	27.2 –	41.7
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			48.6	24.4	10.1	4.0	3.7	9.2	24.2

Braga

Polling firm/Link	Fieldwork date	Sample size	PSD CDS PPM	PS	CDU	IND	BE		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			52.1	27.9	9.6		4.8	5.6	24.2
IPOM	18–19 Sep 2017	748	52.5	27.3	8.1		5.9	6.2	25.2
Eurosondagem Seat projection	10–13 Sep 2017	711	50.0 6 / 7	27.7 3	10.0 1		6.0 0 / 1	6.3 –	22.3
UCP–CESOP Seat projection	10–13 Sep 2017	848	46.0 5 / 7	33.0 4 / 5	7.0 0 / 1		6.0 0 / 1	8.0 –	13.0
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			46.7	32.8	8.8	5.3		6.4	13.9

Batalha

Polling firm/Link	Fieldwork date	Sample size	PSD	PS	CDS	CDU		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			53.8	20.0	12.0	3.6	10.6	33.8
IPOM Seat projection	21–22 Sep 2017	658	54.2 5	17.9 1	12.8 1	2.8 –	12.3 –	36.3
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			55.2	15.7	11.3	4.0	13.7	39.5

Chaves

Polling firm/Link	Fieldwork date	Sample size	PSD	PS	IND	CDU	CDS	BE		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017		35.0		51.4		5.7	2.4	1.3	4.3	16.4
IPOM	10–12 Jul 2017	714	53.2	34.3		6.6	2.5	0.6	3.0	24.0
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			39.4	29.7	15.0	6.2	3.2		6.5	9.7

Coimbra

Polling firm/Link	Fieldwork date	Sample size	PS	PSD CDS PPM MPT	CDU	CpC	CDS	SC		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			35.5	26.6	8.3	7.0		16.1	6.6	8.9
	UCP–CESOP	data-sort-value="2019-10-06"	1 Oct 2017	5,960		32.0– 36.0	26.0– 29.0	7.0– 9.0	8.0– 10.0		16.0– 19.0	–	6.0– 7.0
	Intercampus	data-sort-value="2019-10-06"	1 Oct 2017	3,276		37.0– 42.0	27.6– 31.6	5.7– 8.7	5.2– 8.2		11.1– 15.1	2.4– 5.4	9.4– 10.4
G.Triplo	19–22 Sep 2017	678	34.2	14.2	2.4	5.0		7.7	36.6	20.0
Aximage Seat projection	18–21 Sep 2017	600	28.7 4	25.7 3 / 4	7.2 1	8.1 1		13.4 1 / 2	16.9 –	3.0
UCP–CESOP Seat projection	16–17 Sep 2017	895	35.0 4 / 5	25.0 3 / 4	9.0 1	9.0 1		16.0 1 / 2	6.0 –	10.0
Eurosondagem Seat projection	11–13 Sep 2017	717	33.1 4	26.7 3	8.3 1	9.0 1		15.2 2	7.7 –	6.4
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			35.5	29.7	11.1	9.3	3.9		6.6	5.8

Évora

Polling firm/Link	Fieldwork date	Sample size	CDU	PS	PSD	CDS PPM MPT	BE		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017		40.5	26.4	14.9	5.9	4.8	7.5	14.1
Eurosondagem Seat projection	10–12 Sep 2017	703	38.9 3 / 4	29.6 2 / 3	17.5 1	5.3 –	3.0 –	5.7 –	9.3
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013		49.3	26.0	14.7		3.9	6.1	23.3

Fafe

Polling firm/Link	Fieldwork date	Sample size	PS	IND	PSD CDS	CDU	CDS	BE	FS		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			37.3		18.4	2.4		1.7	36.7	4.3	0.6
Eurosondagem Seat projection	18–19 Sep 2017	769	34.0 3 / 4		21.9 2	3.3 –		3.5 –	33.3 3 / 4	4.0 –	0.7
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			35.2	35.1	21.3	3.0	1.4			4.1	0.1

Funchal

Polling firm/Link	Fieldwork date	Sample size	PS	PSD	CDS	CDU		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			42.1	32.1	8.6	3.6	13.7	10.0
Eurosondagem Seat projection	20–21 Sep 2017	777	43.8 6	31.8 4	10.0 1	5.0 –	9.4 –	12.0
Eurosondagem Seat projection	12–14 Jul 2017	708	42.5 6	30.8 4	10.0 1	5.0 –	11.7 –	11.7
Eurosondagem Seat projection	12–13 Jan 2017	717	48.0 6 / 7	25.8 3 / 4	8.7 1	6.3 0 / 1	11.2 0 / 1	22.2
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			39.2	32.4	14.6	8.4	5.4	6.8

Gondomar

Polling firm/Link	Fieldwork date	Sample size	PS	PSD CDS	CDU	BE	VL		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			45.5	11.0	15.4	3.6	19.9	4.6	25.6
DOMP	28 Aug–22 Sep 2017	890	50.0	5.0	13.0	2.0	23.0	6.0	27.0
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			46.4	22.1	12.2	3.6		15.7	24.3

Guimarães

Polling firm/Link	Fieldwork date	Sample size	PS	PSD CDS PPM MPT PPV	CDU	BE		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			51.5	37.9	5.2	2.4	2.9	13.6
Eurosondagem Seat projection	22–23 Sep 2017	708	53.5 7	31.0 4	6.7 –	3.3 –	5.5 –	22.5
Eurosondagem Seat projection	10–11 Sep 2017	710	55.1 7	30.0 4	6.5 –	3.0 –	5.4 –	25.1
IPOM	30 Aug–1 Sep 2017	854	45.3	43.1	6.5	1.4	3.7	2.2
Eurosondagem Seat projection	25–26 Jun 2017	708	54.1 7	30.7 4	6.0 –	4.2 –	5.0 –	23.4
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			47.6	35.6	8.3	2.0	6.4	12.0

Leiria

Polling firm/Link	Fieldwork date	Sample size	PS	PSD MPT	CDS	CDU	BE		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			54.5	27.0	5.0	2.4	2.7	8.4	27.5
IPOM Seat projection	22 Sep 2017	744	49.9 7	26.3 3	7.5 1	4.3 –	3.2 –	8.8 –	23.6
Eurosondagem Seat projection	2–9 May 2017	1,069	52.0 7 / 8	26.6 3 / 4	3.0 –	4.9 –	4.2 –	9.3 –	25.4
Eurosondagem	14–17 Oct 2016	1,010	36.8	39.6	5.3	3.0	5.2	10.1	2.8
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			46.3	27.9	4.7	4.4	3.3	13.5	18.4

Lisbon

Polling firm/Link	Fieldwork date	Sample size	PS	PSD	CDS PPM MPT	CDU	BE		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			42.0	11.2	20.6	9.6	7.1	9.4	21.4
	UCP–CESOP	data-sort-value="2019-10-06"	1 Oct 2017	11,694		43.0– 47.0	9.0– 11.0	18.0– 21.0	9.0– 11.0	7.0– 9.0	–	25.0– 26.0
	Eurosondagem	data-sort-value="2019-10-06"	1 Oct 2017	8,761		41.4– 46.0	8.4– 11.0	16.2– 20.0	10.0– 12.1	7.7– 9.6	–	25.2– 26.0
	Intercampus	data-sort-value="2019-10-06"	1 Oct 2017	5,238		44.3– 49.3	8.1– 12.0	15.5– 19.5	8.3– 12.3	6.2– 9.2	4.6– 10.6	28.8– 29.8
Eurosondagem Seat projection	24–26 Sep 2017	1,010	43.3 9	12.5 2	17.5 3	10.1 2	5.7 1	10.9 –	25.8
UCP–CESOP Seat projection	23–26 Sep 2017	1,185	47.0 8 / 10	12.0 2	15.0 2 / 3	8.0 1 / 2	8.0 1 / 2	10.0 –	32.0
Aximage Seat projection	17–20 Sep 2017	600	47.0 9 / 10	10.9 2 / 3	12.6 2 / 3	8.5 2	5.5 1	15.5 –	34.4
UCP–CESOP Seat projection	16 Sep 2017	764	41.0 7 / 9	16.0 3 / 4	17.0 3 / 4	8.0 1 / 2	8.0 1 / 2	10.0 –	24.0
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			50.9	22.4		9.9	4.6	12.3	28.5

Loures

Polling firm/Link	Fieldwork date	Sample size	CDU	PS	PSD PPM	BE	CDS		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017		32.8	28.2	21.6	3.6	2.9	11.0	4.6
Eurosondagem Seat projection	17–19 Sep 2017	710	36.6 5	28.2 4	18.2 2	5.0 –	2.8 –	9.2 –	8.4
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013		34.7	31.2	16.0	3.2	3.1	11.8	3.5

Maia

Polling firm/Link	Fieldwork date	Sample size	PSD CDS	PS	CDU	BE		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			40.0	36.6	4.6	5.8	13.0	3.4
UCP–CESOP Seat projection	9–10 Sep 2017	718	41.0 5 / 6	32.0 4 / 5	7.0 0 / 1	5.0 –	15.0 –	9.0
IPOM	26–29 Aug 2017	882	48.3	27.0	7.8	5.9	11.0	21.3
Intercampus	19–26 May 2017	800	27.1	31.1	3.6	2.6	35.5	4.0
GTriplo	20–30 Apr 2015	750	24.0	26.4	3.5	2.5	44.1	2.4
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			50.2	25.6	7.7	6.0	10.6	24.6

Marinha Grande

Polling firm/Link	Fieldwork date	Sample size	PS	CDU	MPM	+C	PSD MPT	BE	CDS PPM		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			29.4	24.5	22.1	7.6	4.9	4.8	0.8	5.9	4.9
IPOM Seat projection	22 Sep 2017	616	39.0 4	28.4 2	16.1 1	3.2 0	3.5 –	0.6 –		8.8 –	10.6
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			29.9	24.8	12.0	11.0	10.6	2.8	1.1	7.9	5.1

Matosinhos

Polling firm/Link	Fieldwork date	Sample size	IND	PS	PSD	CDU	BE	CDS	NM	SIM		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017				36.3	11.9	6.7	4.6		16.2	15.2	9.2	20.1
	Intercampus	data-sort-value="2019-10-06"	1 Oct 2017	4,266	–		34.8– 39.8	8.0– 11.0	4.9– 7.9	3.1– 6.1	–	14.5– 18.5	16.9– 20.9	5.3– 9.3	17.9– 18.9
UCP–CESOP Seat projection	23–24 Sep 2017	1,143		38.0 5 / 6	11.0 1	8.0 1	5.0 –		15.0 2	13.0 1 / 2	10.0 –	23.0
Eurosondagem Seat projection	18–20 Sep 2017	707		31.9 4 / 5	10.2 1	6.1 0 / 1	5.0 –		25.8 3 / 4	13.5 2	7.5 –	6.1
UCP–CESOP Seat projection	16–17 Sep 2017	1,364		33.0 4 / 5	9.0 1	8.0 1	5.0 –		21.0 2 / 3	17.0 1 / 2	7.0 –	12.0
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013		43.4	25.3	9.3	7.3	3.6	1.9			9.2	18.1

Odivelas

Polling firm/Link	Fieldwork date	Sample size	PS	CDU	PSD	BE	CDS	PSD CDS		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			45.1	14.8		6.1		21.7	12.3	23.4
	Intercampus	data-sort-value="2019-10-06"	1 Oct 2017	3,555		43.2– 48.2	12.6– 16.6	–	5.6– 8.6	–	20.2– 24.2	8.9– 11.9	23.0– 24.0
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			39.5	21.3	18.5	5.0	4.1		11.6	18.2

Oeiras

Polling firm/Link	Fieldwork date	Sample size	IOMAF	PSD	PS	CDU	CDS	BE	IN-OV	PSD CDS PPM		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017		14.2		13.4	7.8		3.1	41.7	8.8	11.0	27.5
	UCP–CESOP	data-sort-value="2019-10-06"	1 Oct 2017	7,570	13.0– 15.0	–	12.0– 14.0	8.0– 10.0	–	–	42.0– 46.0	8.0– 10.0	–	29.0– 31.0
	Intercampus	data-sort-value="2019-10-06"	1 Oct 2017	3,782	15.0– 19.0	–	11.1– 15.1	5.1– 8.1	–	–	42.2– 47.2	5.9– 8.9	9.7– 12.7	27.5– 28.5
Eurosondagem Seat projection	22–25 Sep 2017	708	16.8 2		14.0 2	8.0 1		3.0 –	36.7 5	10.0 1	11.5 –	19.9
UCP–CESOP Seat projection	23–24 Sep 2017	1,195	15.0 2		15.0 2	10.0 1		2.0 –	37.0 5	7.0 1	14.0 –	22.0
Aximage Seat projection	21–23 Sep 2017	600	23.4 3		11.2 1	7.6 1			36.8 5	7.5 1	13.5 –	13.4
Consulmark2 Seat projection	21–30 Jul 2017	604	21.0 3		10.0 1	5.0 –		1.0 –	45.0 6	9.0 1	9.0 –	24.0
Eurosondagem Seat projection	4–6 Apr 2017	1,008	22.5 3	10.1 1	20.0 2 / 3	6.9 0 / 1	2.1 –	3.3 –	27.6 3 / 4		7.5 –	5.1
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013		33.5	19.2	18.3	9.2	3.8	3.7			12.4	14.3

Ovar

Polling firm/Link	Fieldwork date	Sample size	PSD	PS	CDU	BE	CDS		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			65.1	18.6	4.2	3.4	4.4	4.4	46.5
IPOM	25–26 Sep 2017	595	60.9	20.7	8.0	4.0	2.4	4.0	40.2
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			43.9	35.1	6.0	4.8	3.0	7.3	8.8

Paredes

Polling firm/Link	Fieldwork date	Sample size	PSD	PS	CDU	CDS	BE	MPP		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017		36.2		50.4	2.9	3.7	1.3	2.2	3.5	14.2
IPOM^[1]	21–24 Nov 2016	695	24.2	22.4	2.3	1.9			49.1	1.8
IPOM^[2]		695	17.3	24.6	2.6	3.6			51.9	7.3
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			41.1	40.9	6.4	3.7	1.8		6.1	0.2

Paços de Ferreira

Polling firm/Link	Fieldwork date	Sample size	PS	PSD	CDU	CDS	BE		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			64.8	29.0	1.3	1.1		3.8	35.8
Domp	26–30 Sep 2015	601	50.4	20.6	2.0	0.9	1.1	25.1	29.8
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			46.9	44.4	2.7	1.4		4.6	2.5

Pedrógão Grande

Polling firm/Link	Fieldwork date	Sample size	PSD	PS	CDU	CDS	IND		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017		38.0		55.8	1.4	1.3		3.4	17.8
IPOM^[3]	2–3 Mar 2017	415	26.3	8.4			20.5	44.8	5.8
IPOM^[4]		415	19.5				24.8	55.7	5.3
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			56.6	36.6	1.3			5.5	20.0

Pombal

Polling firm/Link	Fieldwork date	Sample size	PSD	PS	CDS	CDU	BE	NMPH		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			46.3	11.7	6.4	1.2	2.3	24.4	7.6	21.9
IPOM Seat projection	14–15 Sep 2017	703	41.0 4	13.9 1	1.5 –	1.0 –	0.5 –	36.3 4	5.8 –	4.7
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			55.0	26.8	6.2	3.2			8.9	28.2

Ponta do Sol

Polling firm/Link	Fieldwork date	Sample size	PSD	PS	CDS	IND	BE	CDU		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017		38.7		40.3	14.2		1.8	0.8	4.3	1.5
Eurosondagem Seat projection	21–22 Sep 2017	255	50.4 3	33.6 2	6.4 –		3.6 –	1.4 –	4.6 –	16.8
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			56.0	20.6	8.2	6.9	1.8	1.1	5.5	35.4

Porto

Polling firm/Link	Fieldwork date	Sample size	RM	PS	PSD PPM	CDU	BE		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017		44.5	28.6	10.4	5.9	5.3	5.4	15.9
	UCP–CESOP	data-sort-value="2019-10-06"	1 Oct 2017	11,592	43.0– 48.0	28.0– 31.0	8.0– 10.0	6.0– 8.0	5.0– 7.0	–	15.0– 17.0
	Eurosondagem	data-sort-value="2019-10-06"	1 Oct 2017	7,657	37.7– 42.0	30.3– 34.0	7.7– 11.0	4.8– 7.2	4.8– 7.2	–	7.4– 8.0
	Intercampus	data-sort-value="2019-10-06"	1 Oct 2017	4,354	42.0– 47.0	27.7– 31.7	8.1– 11.1	5.0– 8.0	4.2– 7.2	1.0– 7.0	14.3– 15.3
Eurosondagem Seat projection	24–26 Sep 2017	725	40.8 6 / 7	30.8 4 / 5	11.0 1 / 2	6.9 1	5.4 0 / 1	5.1 –	10.0
UCP–CESOP Seat projection	23–25 Sep 2017	1,239	34.0 5 / 6	34.0 5 / 6	9.0 1 / 2	8.0 1	7.0 0 / 1	8.0 –	Tie
Aximage Seat projection	16–19 Sep 2017	600	39.9 6 / 7	20.8 3 / 4	11.8 2	8.9 1	5.3 0 / 1	13.3 –	19.1
UCP–CESOP Seat projection	16–17 Sep 2017	1,239	34.0 4 / 6	33.0 4 / 6	13.0 1 / 2	8.0 1	6.0 0 / 1	6.0 –	1.0
Eurosondagem Seat projection	19–21 Jul 2017	1,525	46.9 7	22.5 3	12.1 2	8.2 1	5.5 –	4.8 –	24.4
Eurosondagem Seat projection	15–17 May 2017	1,011	44.8 6 / 7	22.2 3	15.1 2	6.9 1	6.0 0 / 1	5.0 –	22.6
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013		39.3	22.7	21.1	7.4	3.6	6.0	16.6

Póvoa de Lanhoso

Polling firm/Link	Fieldwork date	Sample size	PSD	PS	CDS	CDU	MAI		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			43.5	42.5		0.9	10.6	2.5	1.0
IPOM	22–23 Sep 2017	551	44.6	37.2			13.5	4.7	7.4
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			51.1	40.3	4.2	1.4		3.1	10.8

Ribeira Brava

Polling firm/Link	Fieldwork date	Sample size	PSD	PS	CDS	CDU	BE	JPP	RB1		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017		32.4	4.5		0.9	0.7	6.2	51.8	3.5	19.4
Eurosondagem Seat projection	13–14 Sep 2017	280	27.6 2	13.2 1		2.4 –	2.8 –	10.0 1	36.4 3	7.6 –	8.8
Eurosondagem Seat projection	7–8 Sep 2017		26.4 2	10.8 1		2.0 –	2.8 –	10.0 1	37.6 3	10.4 –	11.2
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			41.6	21.8	20.0	3.5	2.7			10.5	19.8

Santa Cruz

Polling firm/Link	Fieldwork date	Sample size	IND	PSD	CDU	JPP	PS	CDS	BE		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			17.1	1.5	60.0	6.9	4.9	1.4	8.3	42.9
Eurosondagem Seat projection	25–26 Sep 2017	480		20.0 1 / 2	4.0 –	50.5 4 / 5	10.0 0 / 1	4.2 –	2.5 –	8.8 –	30.5
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013		64.4	23.1	4.3					7.8	41.3

São João da Madeira

Polling firm/Link	Fieldwork date	Sample size	PSD	PS	IND	CDU	CDS	BE	PSD CDS		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017				55.4		4.0		2.4	32.2	6.0	23.2
IPOM	25–26 Sep 2017	676		36.2		6.5		2.2	43.2	7.3	7.0
Eurosondagem Seat projection	21–22 Sep 2017	748		41.5 3 / 4		7.3 –		2.8 –	41.3 3 / 4	7.1 –	0.2
IPOM	15–16 Sep 2017	614		37.8		5.0		1.9	48.0	7.3	10.2
Eurosondagem Seat projection	7–8 Sep 2017	525		41.5 3 / 4		6.7 –		2.3 –	41.7 3 / 4	7.8 –	0.2
IPOM	18–21 Jul 2017	653		35.8		6.2			53.0	4.9	17.2
2016 by-election	data-sort-value="2019-10-06"	24 Jan 2016			37.9	6.3	5.2		2.5	44.8	3.4	6.9
IPOM	16–19 Jan 2016	468		32.0	5.0	6.5		2.4	47.5	6.5	15.5
Eurosondagem Seat projection	17–18 Jan 2016	707		37.0 3	6.8 –	5.5 –		4.8 –	43.3 4	2.5 –	6.3
IPOM	9–12 Jan 2016	454		33.1	4.7	5.7		2.5	46.1	7.9	13.0
IPOM	28 Dec 2015–5 Jan 2016	589		33.2	4.7	5.0		1.0	46.7	9.4	13.5
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			38.0	35.1	10.0	6.2	3.0	2.3		5.5	2.9

Sintra

Polling firm/Link	Fieldwork date	Sample size	PS	IND	PSD CDS PPM MPT	CDU	BE		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			43.1		29.0	9.4	6.3	12.2	14.1
	Intercampus	data-sort-value="2019-10-06"	1 Oct 2017	3,683		41.5– 46.5	–	28.3– 32.3	8.0– 11.0	5.3– 8.3	7.8– 10.8	13.2– 14.2
Aximage Seat projection	19–21 Sep 2017	600	40.4 5 / 6		28.8 3 / 4	11.9 1	6.4 0 / 1	12.5 –	11.6
Eurosondagem Seat projection	18–20 Sep 2017	721	42.8 5 / 6		28.5 3 / 4	10.0 1	7.0 0 / 1	11.7 –	14.3
UCP–CESOP Seat projection	17–19 Sep 2017	1,169	42.0 5 / 6		26.0 3 / 4	9.0 1	7.0 0 / 1	16.0 –	16.0
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			26.8	25.4	13.8	12.5	4.5	16.9	1.4

Soure

Polling firm/Link	Fieldwork date	Sample size	PS	PSD CDS PPM	CDU	IND	BE		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			59.1	21.4	13.0			6.5	37.7
Eurosondagem^[5] Seat projection	1–3 Feb 2017	1,010	50.0	37.5	4.1		3.1	5.3	12.5
			48.2 4	33.9 2 / 3	10.8 0 / 1			7.1	14.3
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			39.3	37.0	9.9	8.0		5.9	2.3

Valongo

Polling firm/Link	Fieldwork date	Sample size	PS	PSD PPM	CDU	BE	CDS	PSD CDS		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			57.3		5.2	4.2		26.4	6.9	30.9
Consulmark2^[6]	15–27 Jun 2016	300	48.0	27.0	9.0	5.0	3.0		8.0	21.0
Consulmark2^[7]		300	49.0	25.0	9.0	4.0	4.0		9.0	24.0
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			38.9	36.7	8.3	4.4	2.6		9.2	2.2

Vila Nova de Gaia

Polling firm/Link	Fieldwork date	Sample size	PS	PSD CDS	IND	CDU	BE		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			61.9	20.3		4.5	5.2	8.3	41.6
UCP–CESOP Seat projection	9–10 Sep 2017	760	53.0 6 / 8	22.0 3 / 4		6.0 0 / 1	8.0 0 / 1	11.0 –	31.0
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			38.2	20.0	19.7	6.4	3.1	12.7	18.2

Vila Real de Santo António

Polling firm/Link	Fieldwork date	Sample size	PSD	PS	CDU	BE	CDS		Lead
2017 local election	data-sort-value="2019-10-06"	1 Oct 2017			45.0	30.1	18.8	2.7		3.5	14.9
Aximage Seat projection	15–17 Sep 2017	400	40.1 3 / 4	28.8 2 / 3	10.7 1	2.3 –		18.1 –	11.3
2013 local election	data-sort-value="2019-10-06"	29 Sep 2013			53.6	23.0	13.0	3.8	1.1	5.5	30.6

External links

• ERC - Official publication of polls
• 2017 local election results
• 2013 local election results

Notes and References

1. If PSD candidate is Joaquim Neves.
2. If PSD candidate is Rui Moutinho.
3. If PSD candidate is Valdemar Alves.
4. If PSD candidate was João Marques.
5. Survey where voters were first asked which party or coalition they would vote for and secondly, which candidate they would cast their ballot for.
6. If PSD candidate is João Paulo Baltazar.
7. If PSD candidate is Miguel Santos.