Country polling guide

Norway polling guide

Context for Norwegian national party polling, county-based proportional representation, the four-per-cent levelling threshold and local balance.

Last reviewed 9 Oct 2026

Open Norway tracker

Overview

The tracker records published nationwide party support for Norwegian parliamentary elections. It provides a consistent view of party movement and source coverage while keeping each observation separate from the electoral and coalition decisions that follow a campaign.

Electoral system context

Norway allocates seats proportionally in counties and uses levelling seats to improve national proportionality. A national threshold applies to access to levelling seats, although parties can still win constituency seats below it, so support near the threshold needs careful interpretation.

Party and bloc rationale

The local balance groups Rødt, SV, MDG, Labour and Centre against Liberal, Christian Democratic, Conservative and Progress. Other parties remain outside. This is a country-specific navigation grouping and does not assert an official coalition, fixed ideology or equivalence with blocs elsewhere.

The reviewed grouping covers 13 September 2021 through the 8 September 2025 election. It applies to that source cycle rather than beginning after the final poll.

Polling limitations

National values cannot capture county allocation or the different consequences of being above or below the levelling threshold. Pollsters also vary in weighting and minor-party reporting, and the election-cycle archive should not be treated as continuous where no comparable nationwide table is available.

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