Overview
This tracker records the published nationwide party-support series available for Iceland's 2021 parliamentary cycle. It remains a historical archive until a complete comparable source for a later cycle is reviewed, rather than presenting old observations as current polling.
Electoral system context
Members of the Althing are elected from multi-member constituencies with adjustment seats used to improve national proportionality. Parties need national support for adjustment-seat eligibility, while constituency results and candidate votes also affect representation.
Party and bloc rationale
The reviewed local balance groups Left-Green, Social Democratic and Socialist entries against Independence, Centre, Progressive, People's and Reform parties. Pirates and others remain outside. This is a time-bounded Bismuth aid for navigation, not an official coalition or universal ideology score.
The reviewed grouping covers 28 October 2017 through the 25 September 2021 election represented by this archive. The later 2024 election does not extend the 2021 source or its grouping.
Polling limitations
The current published snapshot ends in 2021 and must not be described as a live measure of later opinion. Iceland's small electorate and party field can make sampling movement pronounced, while national values do not reproduce constituency allocation, candidate votes or eventual coalition negotiations.
Bloc summaries use complete paired polls within 45 days of the latest archive record, weighted by recency and sample size. Both sides use the same eligible polls. The tracker and map show the number of complete polls and their supporting date, which can precede the latest archive record; missing parties are not assigned zero. The comparison’s latest-poll balance is a separate individual observation.
Sources
- Iceland National Electoral Commission — Election lawsAccessed 2026-08-14
- Wikipedia — Opinion polling for the 2021 Icelandic parliamentary electionAccessed 2026-08-14