Opinion polling for the 2011 Portuguese presidential election

In the run up to the 2011 Portuguese presidential election, various organisations carried out opinion polling to gauge voting intention in Portugal. Results of such polls are displayed in this article.

Poll results are listed in the table below in reverse chronological order, showing the most recent first. The highest percentage figure in each polling survey is displayed in bold, and the background shaded in the leading candidate colour. In the instance that there is a tie, then no figure is shaded but both are displayed in bold. Poll results use the date the survey's fieldwork was done, as opposed to the date of publication.

Candidates vote

First round

Polling

  Exit poll

Polling firm	Fieldwork date	Sample size							Oth/ Und	Lead
			Cavaco PSD, CDS (Inc.)	Alegre PS, BE	Nobre Ind.	Moura Ind.	Lopes PCP	Coelho PND
Election results	23 Jan 2011	46.5	53.0	19.7	14.1	1.6	7.1	4.5	—	33.3
UCP–CESOP	23 Jan 2011	24,213	52–58	18–21	13.5–16.5	1–2	5–8	2–4	—	35.5
Eurosondagem	23 Jan 2011	34,452	51.6–56.0	17.1–20.9	13.1–16.3	1.1–2.1	6.3–7.5	3.3–4.5	—	34.8
Intercampus	23 Jan 2011	24,740	51.4–55.4	17.2–21.2	12.4–16.4	0.7–2.7	5.8–8.8	3.1–5.1	—	34.2
Sol (average)	21 Jan 2011	—	58	22	11	2	5	2	—	36
Intercampus	16–19 Jan 2011	1,004	54.6	22.8	9.1	2.6	8.2	2.7	—	31.8
UCP–CESOP	15–18 Jan 2011	4,321	59	22	10	1	6	2	—	37
Eurosondagem	13–18 Jan 2011	2,063	56.3	25.0	10.1	2.0	5.2	1.4	—	31.3
Marktest	14–16 Jan 2011	802	61.5	15.0	12.7	1.2	3.3	2.1	4.2	46.5
Aximage	10–14 Jan 2011	1,000	54.7	25.6	10.7	1.8	6.3	0.9	—	29.1
Aximage	3–6 Jan 2011	600	57.1	20.8	8.7	3.1	2.0	0.5	7.8	36.3
Intercampus	3–6 Jan 2011	1,002	60.1	25.3	4.2	2.5	6.3	1.6	—	34.8
Eurosondagem	15–20 Dec 2010	2,052	60.0	30.0	4.8	0.7	4.5	—	—	30.0
Intercampus	10–15 Dec 2010	607	64.3	20.7	5.5	1.0	4.5	—	—	43.6
Eurosondagem	18–23 Nov 2010	2,069	57.0	32.0	5.2	1.0	4.8	—	—	25.0
Marktest	16–19 Nov 2010	804	78.3	15.0	4.0	0.0	0.7	—	—	63.3
Intercampus	12–17 Nov 2010	609	61.5	26.1	4.5	0.5	3.7	—	3.7	35.4
UCP–CESOP	23–25 Oct 2010	1,140	63	20	7	1	3	—	—	43
Marktest	19–24 Oct 2010	807	71.3	20.2	5.0	0.9	1.1	—	—	51.1
Intercampus	4–6 Oct 2010	609	55.5	30.7	4.9	1.2	5.6	—	—	24.8
Aximage	1–4 Oct 2010	600	55.1	35.7	7.1	0.2	1.9	—	—	19.4
Eurosondagem	15–21 Sep 2010	2,062	54.9	33.0	6.2	1.1	4.8	—	—	21.9
Marktest	14–17 Sep 2010	804	70.6	21.9	4.4	0.2	1.0	—	1.9	49.0
Aximage	6–9 Sep 2010	600	58.1	32.1	5.4	0.0	4.4	—	—	26.0
Marktest	20–26 Jul 2010	802	67.1	19.6	10.0	0.7	—	—	—	47.5
Intercampus	16–19 Jul 2010	603	59.4	26.8	9.1	2.9	—	—	—	32.6
Euroexpansão	8–11 Jul 2010	1,504	51.1	14.7	4.1	—	—	—	22.1	36.4
Aximage	1–4 Jul 2010	600	55.3	26.9	11.6	—	—	—	6.2	28.4
UCP–CESOP	19–21 Jun 2010	1,179	50	19	7	—	—	—	25	31
Aximage	1–7 Jun 2010	600	53.4	28.1	8.6	—	—	—	9.9	25.3
UCP–CESOP	6–9 Mar 2010	600	57	19	8	—	—	—	16	38
Aximage	5–9 Mar 2010	600	56.0	21.6	13.8	—	—	—	8.6	34.4
Eurosondagem	4–9 Mar 2010	1,019	36.9	25.0	9.6	—	(5.0)	—	23.5	11.9
Aximage	6–11 Jan 2010	600	60.3	39.7	—	—	—	—	—	20.6

Leadership polls

Approval ratings

The table below lists the evolution of public opinion on the president's performance in office.

Polling firm	Fieldwork date	Sample size	Aníbal Cavaco Silva
			Approve	Disapprove	No opinion	Net
Eurosondagem	5–11 Jan 2011	1,010	53.1	29.7	17.2	23.4
Aximage	3–6 Jan 2011	600	56.0	28.1	15.9	27.9
Aximage	5–7 Dec 2010	600	62.0	21.1	16.9	40.9
Eurosondagem	2–7 Dec 2010	1,020	56.2	25.4	18.4	30.8
Marktest	16–19 Nov 2010	807	58.2	21.7	20.1	36.5
Eurosondagem	4–9 Nov 2010	1,025	54.1	25.6	20.3	28.5
UCP–CESOP	23–25 Oct 2010	1,140	79	21	—	58
Marktest	19–24 Oct 2010	807	52.9	27.3	19.8	25.6
Eurosondagem	6–12 Oct 2010	1,021	52.9	26.3	20.8	26.6
Aximage	1–4 Oct 2010	600	58.2	22.2	19.6	36.0
Marktest	14–17 Sep 2010	804	53.8	24.0	22.2	29.8
Aximage	6–9 Sep 2010	600	55.5	14.5	30.0	41.0
Eurosondagem	1–7 Sep 2010	1,035	56.0	25.3	18.7	30.7
Eurosondagem	28 Jul–2 Aug 2010	1,031	55.0	25.0	20.0	30.0
Marktest	20–26 Jul 2010	802	56.4	23.4	20.2	33.0
Eurosondagem	1–6 Jul 2010	1,035	52.0	25.3	22.7	26.7
Aximage	1–4 Jul 2010	600	56.6	28.2	15.2	28.4
UCP–CESOP	19–21 Jun 2010	1,179	80	20	—	60
Marktest	15–20 Jun 2010	804	55.1	22.3	22.6	32.8
Eurosondagem	2–8 Jun 2010	1,025	50.8	25.6	23.6	25.2
Marktest	18–20 May 2010	804	60.7	20.1	19.2	40.6
Eurosondagem	13–18 May 2010	1,024	49.8	26.3	23.9	23.5
Aximage	4–7 May 2010	600	59.1	25.1	15.8	34.0
Marktest	20–25 Apr 2010	800	64.0	16.0	20.0	48.0
Eurosondagem	8–13 Apr 2010	1,020	47.1	27.5	25.4	19.6
Aximage	5–8 Apr 2010	600	59.6	16.2	24.2	43.4
Marktest	16–21 Mar 2010	808	63.5	17.9	18.6	45.6
UCP–CESOP	6–9 Mar 2010	1,148	87	13	—	74
Aximage	5–9 Mar 2010	600	60.6	16.9	22.5	43.7
Eurosondagem	4–9 Mar 2010	1,019	43.4	29.0	27.6	14.4
Marktest	16–21 Feb 2010	804	55.5	23.2	21.3	32.3
Eurosondagem	4–9 Feb 2010	1,010	43.1	30.2	26.7	12.9
Aximage	2–5 Feb 2010	600	50.0	23.9	26.1	26.1
Marktest	19–23 Jan 2010	803	60.0	21.0	19.0	39.0
Eurosondagem	7–12 Jan 2010	1,010	40.6	30.7	28.7	9.9
Aximage	6–11 Jan 2010	600	54.8	23.7	21.5	31.1
Aximage	7–10 Dec 2009	600	48.1	27.6	24.3	20.5
Eurosondagem	25 Nov–1 Dec 2009	1,031	36.9	31.1	32.0	5.8
Marktest	17–19 Nov 2009	808	58.9	21.0	20.1	37.9
Aximage	3–6 Nov 2009	600	46.2	27.1	26.7	19.1
Eurosondagem	29 Oct–3 Nov 2009	1,030	35.8	32.3	31.9	3.5
Marktest	20–24 Oct 2009	806	58.7	20.2	21.1	38.5
Aximage	12–16 Oct 2009	600	35.5	42.4	22.1	6.9
Marktest	18–21 Sep 2009	806	67.6	15.2	17.2	52.4
Marktest	4–7 Sep 2009	811	67.9	15.1	17.0	52.8

External links

• ERC - Official publication of polls