Vaux-Sur-Sûre covers 135.7 km² and has 5,640 inhabitants. The average age is 36, women account for 50.4% of residents, and 79% of households own their dwelling. Average net income per person is €16,865 a year. The population is 97.2% Belgian, 1.1% French, 0.3% Luxembourgish, 0.2% Italian, 0.2% Dutch, 0.1% Portuguese, 0.1% Guinean and 0.8% other nationalities. Apartments sit within a housing stock made up of 96.4% houses and 3.6% apartment buildings. The wider building mix comprises 73.9% open-type houses, farms and castles, 16.5% semi-closed houses, 3.5% buildings and flat blocks, 2.9% closed houses, 2.1% other types and 1.1% commercial houses. Homes average 6.6 rooms, and buildings were built around 1941 on average.
There are 2 apartments for rent, with monthly rents ranging from €620 to €800 and an average of €710. Across all property types, 24 properties are for sale or rent in the municipality; the current rental listings also include 0 houses for rent. Road access includes the N85 and N848. By car, the A26/E25 entrance towards Liège, Bastogne and Neufchâteau is 3 minutes from the town centre, while the A4/E411–E25 entrance towards Brussels, Namur, Arlon and Luxembourg City is 8 minutes away. Public transport serves the commune with 7 bus lines. Listed TEC routes include line 413 between Bastogne and Neufchâteau, line 413/2 through Juseret, Traimont and Sibret to Bastogne, plus lines 2, 6 and 601. The nearest railway stations to the centre are Neufchâteau, Bastogne-Sud, Bastogne-Nord, Libramont and Marbehan.
There are 5 nurseries, 9 nursery schools and 9 primary schools in the commune. Examples include Ecole Fondamentale Communale De Vaux-Sur-Sûre III, Ecole Fondamentale Autonome De Sibret and Ecole De Vaux-Sur-Sûre II. No secondary school is listed in Vaux-Sur-Sûre. The supermarket presence is 1 Match / Smatch. The local business mix includes 122 corporations in mixed farming, 27 hairdressing and beauty-treatment companies, 17 veterinary firms, 16 companies in specialised construction and 16 in landscape services. There are no shared bicycles or shared cars in the commune at present, and no known EV charging station. Liège Airport is 66 minutes away by car or 207 minutes by public transport.