10.34934/DVN/KYWPSO Eck, Bjarn0009-0005-1385-5707(Université libre de Bruxelles)Michel, Elie(Université de Lausanne)Lefevere, Jonas(Universiteit Antwerpen)Pilet, Jean-Benoit(Université libre de Bruxelles)Celis, Karen(Vrije Universiteit Brussel)Claes, Ellen(Katholieke Universiteit Leuven)Rihoux, Benoît(Université catholique de Louvain)Van Haute, Emilie(Université libre de Bruxelles)Walgrave, Stefaan(Universiteit Antwerpen)Close, Caroline(Université libre de Bruxelles)Baudewyns, Pierre(Université catholique de Louvain)Van Ingelgom, Virginie(Université catholique de Louvain)Severs, Eline(Vrije Universiteit Brussel)Kern, Anna(Universiteit Gent)Wauters, Bram(Universiteit Gent)Dodeigne, Jeremy(Université de Namur) Social Sciences and Digital Humanities Archive – SODHA 2025 Dataset of a 4-wave electoral panel survey during the 2024 Belgian elections. The panel consists of 4 waves in the electoral year of 2024, when elections took place in Belgium for the federal, regional, and European level on 9 June and for the local level on 13 October. Wave 1 was fielded in January (pre-campaign), wave 2 in May (campaign), wave 3 in June (post-electoral), and wave 4 in November (post-electoral). The dataset consists of separate samples for Brussels, Flanders, and Wallonia. The surveys focus strongly on affective polarization and perceptions of differentness. Eck, Bjarn(ULB)