System 3 Opinion Polls


saltire shield'An English MP once said 'We do not mind anyone having self-government as long as they take the English way of life.' That, transmitted into foreign policy, has wrecked half the world.'
Wendy Wood in 'Yours Sincerely for Scotland', 1970.
Lion Rampant

System 3 polls - October 1974 - May 1979

System Three is the longest-established political opinion poll in Scotland, having first been commissioned by The Herald (Glasgow) in 1974, and therefore provides a unique insight into party support over the past 25 years.

I have compiled the data presented below from the polls published each month in the Herald and from that newspaper's library. I am indebted to Ian Watson, Information Services Manager of the Herald's library for providing me with this information.

NB The month designations which I have used refer to the date of publication of the poll (generally early in the month), rather than when the data were collected (often late the previous month). System 3 apparently conducts no poll in December and two in January. Therefore the 'December' polls are in reality the first of the two January polls.

Data extracted from The Herald System 3 Polls

Data in tabular format

Party Labour Scottish National Party Conservative Liberal
Date Labour logo SNP logo Conservative logo Liberal logo
General Election October 1974 36.3 % 30.4 % 24.7 % 8.3 %
October 1974 47 % 33 % 16 % 4 %
November 1974 40 % 32 % 22 % 6 %
December 1974 40 % 31 % 23 % 6 %
January 1975 40 % 29 % 24 % 6 %
February 1975 40 % 29 % 28 % 3 %
March 1975 40 % 24 % 29 % 6 %
April 1975 37 % 27 % 31 % 5 %
May 1975 40 % 26 % 28 % 5 %
June 1975 39 % 24 % 24 % 5 %
July 1975 42 % 22 % 29 % 5 %
August 1975 38 % 24 % 32 % 5 %
September 1975 35 % 27 % 34 % 4 %
October 1975 39 % 26 % 30 % 4 %
November 1975 42 % 26 % 26 % 5 %
December 1975 30 % 36 % 28 % 5 %
January 1976 33 % 36 % 27 % 3 %


Party Labour Scottish National Party Conservative Liberal Scottish Labour Party
Date Labour logo SNP logo Conservative logo Liberal logo SLP logo
February 1976 24 % 33 % 28 % 6 % 8 %
March 1976 34 % 29 % 28 % 4 % 5 %
April 1976 31 % 30 % 28 % 5 % 5 %
May 1976 35 % 25 % 32 % 4 % 3 %
June 1976 34 % 27 % 32 % 4 % 3 %
July 1976 33 % 27 % 31 % 5 % 3 %
August 1976 30 % 30 % 30 % 4 % 4 %
September 1976 30 % 28 % 30 % 9 % 1 %
October 1976 31 % 31 % 31 % 3 % 3 %
November 1976 24 % 32 % 35 % 7 % 2 %
December 1976 28 % 33 % 29 % 6 % 4 %
January 1977 33 % 30 % 28 % 6 % 2 %
February 1977 29 % 31 % 32 % 5 % 3 %
March 1977 27 % 36 % 27 % 5 % 3 %
April 1977 28 % 31 % 21 % 6 % 2 %
May 1977 33 % 35 % 26 % 4 % 1 %
June 1977 28 % 32 % 31 % 6 % 2 %
July 1977 32 % 33 % 26 % 5 % 3 %
August 1977 29 % 32 % 30 % 5 % 4 %
September 1977 31 % 28 % 32 % 6 % 2 %
October 1977 36 % 26 % 30 % 6 % 2 %
November 1977 35 % 30 % 27 % 5 % 3 %
December 1977 34 % 29 % 28 % 6 % 3 %
January 1978 38 % 27 % 28 % 5 % 2 %
February 1978 35 % 27 % 30 % 5 % 2 %
March 1978 38 % 27 % 29 % 4 % 2 %
April 1978 47 % 24 % 24 % 3 % 2 %
May 1978 47 % 20 % 27 % 4 % 1 %
June 1978 47 % 22 % 26 % 4 % 1 %
July 1978 48 % 18 % 30 % 4 % 0 %
August 1978 52 % 18 % 24 % 3 % 3 %
September 1978 48 % 19 % 27 % 4 % 1 %
October 1978 53 % 21 % 23 % 3 % 2 %
November 1978 48 % 21 % 25 % 4 % 2 %
December 1978 45 % 20 % 31 % 2 % 2 %
January 1979 40 % 23 % 31 % 4 % 1 %
February 1979 40 % 18 % 37 % 4 % 1 %
March 1979 45 % 19 % 29 % 6 % 2 %
April 1979 42 % 17 % 30 % 11 % 0 %
General Election May 1979 41.5 % 17.3 % 31.4 % 9.0 % 0.5 %
June 1979 53 % 17 % 21 % 7 % 2 %

Monthly polls in graphical format

Polls 1974 - 76

Polls 1976 - 1979


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