A parliamentary election was held in Norway on 11 September 2017. The non-socialist parties retained a reduced majority of 88 seats, allowing Prime Minister Erna Solberg's Conservative-Progress coalition to remain in government. The three largest centre-left parties won 79 seats. The environmentalist Green Party retained its single seat, while the left-wing Red Party also won its first ever seat.
The last parliamentary elections in Norway were held on 9 September 2013. The outcome was a victory for the Conservatives and their populist right-wing allies. The Conservative Party, led by Erna Solberg, and the right-wing populist Progress Party formed a two-party minority government, with Solberg as Prime Minister. The two parties received confidence and supply from two centrist parties, the Liberals and the Christian Democrats.
The number of members to be returned from each constituency varies between 4 and 19. To determine the apportionment of the 169 seats amongst the 19 counties, a two-tier formula is used, based on population and geographic size. Each inhabitant counts one point, while each square kilometer counts 1.8 points.
150 of the seats are regular district seats. These are awarded based on the election results in each county, and are unaffected by results in other counties. Nineteen of the seats (one for each county) are leveling seats, awarded parties who win fewer seats than their share of the national popular vote otherwise entitles them to. A party must win 4% of the popular vote in order to win compensation seats, but may still win district seats even if it fails to reach this threshold. The system for apportioning seats is biased in favour of rural areas since the area of the county is a factor, but the system of compensation seats reduces the effect this has on final party strength.
According to the Norwegian constitution, parliamentary elections must be held every four years. Rather uniquely, the Norwegian parliament may not be dissolved before such a parliamentary four-year term has ended, which in practice makes snap elections impossible to hold without breaking the constitutional electoral law of the country.
On 22 April 2016, the Norwegian government announced that the date of the election is set to be Monday, 11 September 2017. Additionally, each municipal council may vote to extend voting by one day, by also opening the polling stations on Sunday, 10 September.
Eight political parties were represented in the Norwegian parliament prior to the election, all of whom went on to contest the 2017 election.
Additionally, the far-left Red Party led by Bjørnar Moxnes secured its first seat via a direct mandate in Oslo district. It had failed to secure representation in previous elections. The party is officially Communist in orientation and is a successor to the Red Electoral Alliance, which had previously won a seat in the 1993 election.
|Polling Period||Government||Opposition||Government||Opposition||Government Lead|
|Labour Party (Ap)||800,949||27.4||-3.5||49||-6|
|Conservative Party (H)||732,897||25.0||-1.8||45||-3|
|Progress Party (FrP)||444,683||15.2||-1.2||27||-2|
|Centre Party (Sp)||302,017||10.3||+4.8||19||+9|
|Socialist Left Party (SV)||176,222||6.0||+1.9||11||+4|
|Liberal Party (V)||127,911||4.4||-0.8||8||-1|
|Christian Democratic Party (KrF)||122,797||4.2||-1.4||8||-2|
|Green Party (MDG)||94,788||3.2||+0.4||1||0|
|Red Party (R)||70,522||2.4||+1.3||1||+1|
|Pensioners' Party (PP)||12,855||0.4||+0.0||0||+0|
|The Christians (PDK)||8,700||0.3||-0.3||0||+0|
|Democrats in Norway (DEM)||3,830||0.1||+0.1||0||+0|
|Coastal Party (KP)||2,467||0.1||+0.0||0||+0|
|Feminist Initiative (FI)||696||0.0||new||0||new|
|Communist Party of Norway (NKP)||309||0.0||+0.0||0||+0|
|Party of Values||151||0.0||new||0||new|
|Blank and invalid votes||23,681||0.8||+0.2||–||–|
Prime Minister Solberg set out to form a governing coalition between the Conservative Party, Progress Party, Liberal Party, and the Christian Democrats. In late-September 2017, the Christian Democrats left coalition talks due to the inclusion of the Progress Party.
On 14 January 2018, a government was formed by the Conservative Party, the Progress Party and the Liberal Party.