Opinion polling for the 1979 Spanish general election

In the run up to the 1979 Spanish general election, various organisations carried out opinion polling to gauge voting intention in Spain during the term of the Constituent Cortes Generales. Results of such polls are displayed in this article. The date range for these opinion polls is from the previous general election, held on 15 June 1977, to the day the next election was held, on 1 March 1979.

Voting intention estimates refer mainly to a hypothetical Congress of Deputies election. 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 poll.

Electoral polling Nationwide polling Voting intention estimates 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. When available, seat projections determined by the polling organisations are displayed below (or in place of) the percentages in a smaller font; 176 seats were required for an absolute majority in the Congress of Deputies.

Polling firm/Commissioner Fieldwork date Sample size Turnout PNV Lead 1979 general election 1 Mar 1979 68.0 34.8 30.4 10.8 6.1 2.7 1.6 2.1 4.4 Government 1 Mar 1979?? 34.6 29.8 10.8 5.5 2.6 1.6 2.0 4.8 SFGPP/Ya 26 Feb 1979 16,817? 33.1 31.9 8.2 6.3 –? – 1.2 Sofemasa/El País 19–21 Feb 1979 16,869 77.7 32.9 35.0 11.0 6.3 1.8 1.7 2.3 2.1 PSOE 18 Feb 1979? 65 28.0–32.0 31.0–35.0 – – – – – 3.0 Equipo Eidos/Europa Press 12–14 Feb 1979 3,700? 34.0 32.0 12.0 7.0 2.9 1.6 – 2.0 RNC/ABC 7 Feb 1979 2,999 73 30.6 32.3 12.9 11.3 – 2.7 – 1.7 PSOE 1 Feb 1979? 65 27.0–32.0 32.0–37.0 – – – – – 5.0 Sofemasa/El País 30–31 Jan 1979 2,000? 30.6 33.5 9.3 3.7 – – 1.8 2.9 ICSA–Gallup/El Periódico 2–29 Nov 1978 2,200? 27.3 38.7 10.8 3.8 – – – 11.4 Sofemasa/El País 9–11 Jun 1978 2,000? 28.5 33.6 9.7 7.1 – – – 5.1 Diario 16 10 Mar 1978? 79 29.0–31.0 38.0–40.0 6.0–8.0 6.0–8.0 6.0–8.0 – – – 9.0 1977 general election 15 Jun 1977 78.8 34.4 29.3 9.3 8.3 4.5 2.8 1.6 0.5 5.1

Voting preferences The table below lists raw, unweighted voting preferences.

Polling firm/Commissioner Fieldwork date Sample size PNV Lead 1979 general election 1 Mar 1979 23.4 20.4 7.2 4.1 1.8 1.1 1.4 32.0 4.4 Sofemasa/El País 19–21 Feb 1979 16,869 21.5 22.9 7.2 3.3 1.2 1.1 1.5 23.2 11.4 1.4 Cambio 16 20 Feb 1979 1,534 20.0 20.0 8.0 3.0 – – – – 7.0 Tie CIS 1–10 Feb 1979 24,395 14.6 14.0 4.4 2.2 0.6 1.0 0.6 54.2 4.3 0.6 RNC/ABC 7 Feb 1979 2,999 19.0 20.0 8.0 7.0 – 1.7 – 38.0 1.0 ICSA–Gallup/ABC 7 Feb 1979 2,600 19.0 29.0 6.0 8.0 – 1.0 30.0 10.0 CIS 25 Jan–3 Feb 1979 25,516 14.3 14.5 4.4 2.0 0.7 0.8 0.5 55.7 4.2 0.2 Sofemasa/El País 30–31 Jan 1979 2,000 18.4 21.0 5.9 2.3 – – 1.1 32.3 8.8 2.6 CIS 19–22 Jan 1979 1,188 18.5 17.5 3.1 2.6 0.5 0.8 – 50.2 3.1 1.0 CIS 1 Jan 1979 1,170 18.0 16.0 4.0 3.0 1.0 0.0 – 51.0 4.0 2.0 CIS 17–19 Dec 1978 1,188 24.0 28.0 6.0 3.0 1.0 2.0 – 18.0 13.0 4.0 CIS 10–12 Dec 1978 987 23.5 19.4 4.0 3.3 0.7 0.4 – 41.7 2.2 4.1 CIS 1 Dec 1978 1,196 21.2 19.5 4.4 4.7 0.8 0.8 – 39.8 3.5 1.7 CIS 20–23 Nov 1978 1,166 18.7 18.8 4.2 2.7 0.6 1.5 – 45.2 4.2 0.1 CIS 13–16 Nov 1978 1,183 18.4 19.5 3.7 2.0 0.3 0.7 – 46.5 4.6 1.1 CIS 6–9 Nov 1978 1,189 20.4 18.3 3.8 2.4 1.2 1.3 – 42.5 4.9 2.1 CIS 1 Nov 1978 5,716 18.0 20.0 4.0 3.0 1.0 0.0 – 46.0 5.0 2.0 CIS 23–26 Oct 1978 1,169 17.2 19.2 4.1 3.9 0.3 1.5 – 42.4 8.0 2.0 CIS 16–18 Oct 1978 1,190 20.2 17.5 4.2 3.7 1.6 1.4 – 37.2 9.3 2.7 CIS 9–11 Oct 1978 1,196 19.2 21.0 4.9 3.1 0.1 0.8 – 40.8 7.4 1.8 CIS 27–30 Sep 1978 1,184 16.3 19.3 4.9 3.9 0.8 0.8 – 40.3 9.2 3.0 CIS 18–26 Sep 1978 1,216 13.8 27.2 9.4 5.3 1.9 1.6 – 22.8 12.4 13.4 CIS 24–26 Jul 1978 1,181 20.1 24.7 6.4 3.3 0.8 1.4 – 25.0 13.8 4.6 CIS 10–12 Jul 1978 5,350 15.2 22.5 6.2 5.0 – 1.1 – 39.4 6.2 3.0 CIS 1 Jul 1978 1,199 17.0 31.0 7.0 3.0 2.0 1.0 – 24.0 10.0 14.0 ICSA–Gallup/Informaciones 1–16 Feb 1978 2,035 17.2 27.8 4.9 2.9 5.7 2.2 1.0 – 33.6 10.6 CIS 1 Jan 1978 5,653 19.0 20.0 6.0 3.0 3.0 0.0 1.0 – 36.0 8.0 1.0 ICSA–Gallup/Informaciones 1–16 Dec 1977 2,037 17.8 28.2 6.1 3.4 5.0 1.6 1.5 – 30.2 10.4 ICSA–Gallup/Informaciones 18 Nov 1977 2,134 18.2 30.5 5.8 3.1 5.7 3.0 2.0 – 26.5 12.3 ICSA–Gallup/Diario 16 17–29 Oct 1977 2,134 17.0 32.4 6.6 3.1 6.0 2.9 1.7 0.4 24.3 15.4 ICSA–Gallup/Informaciones 3–14 Oct 1977 1,944 17.3 31.4 6.3 3.0 6.1 2.9 1.9 – 25.4 14.1 CIS 17–18 Sep 1977 1,554 24.0 24.0 6.0 5.0 5.0 1.0 – – 31.0 Tie 1977 general election 15 Jun 1977 26.8 22.8 7.3 6.4 3.5 2.2 1.3 0.4 21.2 4.0

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