Election Poll Luxembourg: Results from Ilres on April 24, 2025

According to data from Ilres, 8 parties are projected to surpass the electoral threshold and enter the Luxembourg parliament: CSV with 18 representatives, Demokratesch Partei with 13 representatives, LSAP with 11 representatives, Déi Gréng with 6 representatives, ADR with 6 representatives, Déi Lénk with 3 representatives, Piratepartei with 2 representatives and Fokus with 1 representatives.

Luxembourg's Chamber of Deputies (Chambre des Députés) comprises 60 members elected for a five-year term. The country is divided into four electoral constituencies: South, Centre, North, and East. The electoral system is a unique form of proportional representation: voters cast as many votes as there are seats available in their respective constituency. They can opt to vote for an entire party list or allocate their votes individually to candidates, even across party lines (panachage). Additionally, a single candidate can receive a maximum of two votes (cumulation), granting citizens substantial control over the parliament's composition.

Luxembourg does not impose a legally mandated percentage electoral threshold (such as a 5% hurdle) at the national level. The de facto threshold for parliamentary entry stems from the electoral system and the varying sizes of the four constituencies. Since seats are allocated within these districts using the Hagenbach-Bischoff method, the effective threshold is lower in populous constituencies like the South compared to smaller ones like the East. This system enables a diverse range of parties to secure mandates based on regional strength, without needing to achieve a fixed national percentage.

Government formation in Luxembourg is traditionally characterized by consensus and stability. As the electoral system rarely grants any single party an absolute majority of the 60 seats, coalitions are the norm. Following an election, the Grand Duke appoints a 'formateur,' typically the leader of the strongest party or a promising coalition option, to spearhead negotiations. In Luxembourgish politics, coalitions usually remain stable throughout the entire legislative period, with two or three parties often negotiating a joint government program.