- Cross-border functional areas defined within the Interreg programme of the Greater Region in 2025. - Sources: Entwicklungskonzept Oberes Moseltal (EOM), Eurodistrict SaarMoselle, GECT Alzette-Belval, MLOGAT-DATer, Idelux, Eifel-Ostbelgien-Eislek (EOE), Mëllerdall-Our-Südeifel (MOSE), TNT Chiers Alzette, Parc archéologique européen - Europäischer Kulturpark Bliesbruck-Reinheim. Harmonisation: SIG-GR 2025

- Population density 2024 (inhabitants per km²) per municipality. Reference date: 01.01.2024 (Luxembourg and Wallonia), 31.12.2023 (Rhineland-Palatinate and Saarland), 01.01.2022 (Lorraine) - Statistical data sources: DATer, INSEE Grand Est, IWEPS, Région Grand Est, STATEC, Statistisches Landesamt Rheinland-Pfalz, Statistisches Amt Saarland - Geodata sources: GeoBasis-DE / BKG, IGN France, NGI-Belgium, ACT Luxembourg. Harmonization: SIG-GR / GIS-GR 2024