page_title: Opinion polling for the 2017 New Zealand general election
section_title: Graphical summary
hierarchical_section_title: Opinion polling for the 2017 New Zealand general election / Preferred Prime Minister / Graphical summary
caption_attribution_description: English: Preferred Prime Minister Poll of the 2017 New Zealand General Elections from July 2015 through to September 2017
context_page_description: Various organisations commissioned opinion polls for the 2017 New Zealand general election during the term of the 51st New Zealand Parliament. Roy Morgan Research polled monthly, with MediaWorks New Zealand and Television New Zealand polling less frequently. The last The New Zealand Herald was in December 2015, and Fairfax Media discontinued their poll after the 2014 election. The sample size, margin of error and confidence interval of each poll varied by organisation and date, but were typically 800–1000 participants with a margin of error of just over 3%.
  The previous Parliament was elected on Saturday 20 September 2014. The 2017 general election was held on Saturday 23 September 2017.
caption: Summary of Preferred Prime Minister Polls from 2015 to September 2017. Lines show the mean, as estimated by a Loess smoother. Figures to the right show the estimate from the smoothing line at the date of the most recent poll, with 95% confidence interval.
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