La Roche-En-Ardenne is a 148.5 km² commune with 4,253 inhabitants. The average age is 43, and men account for 50.5% of residents. Some 64% of residents own their homes; average annual net income per person is €16,294. The population is 96.3% Belgian, 1.1% Dutch and 0.9% French, with 0.1% each Romanian, Italian, Afghan and Spanish, plus 1.1% other nationalities. The housing stock averages 6.3 rooms, and buildings were constructed around 1941 on average. Houses make up 91.4% of buildings and apartment buildings 8.6%. By building type, 49% are open-type houses, farms or castles, 19.2% other types, 12% semi-closed houses, 8.3% closed houses, 6.5% buildings and flat blocks, and 5% commercial houses.
There are 2 houses for rent. The average monthly rent is €873; current rents range from €850 to €895. The commune has an average of 1.1 cars per household. Routes through the area include the N89z, N89, N820, N833 and N834. By car, the A26/E25 entrance towards Liège, Bastogne and Neufchâteau is 16 minutes from the town centre. The A4/E411–E25 entrance, on the Brussels–Namur–Arlon–Luxembourg City route, is 41 minutes away.
TEC bus services run on 13 lines in La Roche-En-Ardenne. The named examples are line 11b, Proxibus de La Roche; line 13, Andenne (Seilles)–Ciney; line 15/2, Houffalize–La Roche; line 15, La Roche–Marche–Marloie; and line 49, Beauraing–Winenne–Felenne. The nearest stations to the centre are Melreux-Hotton, Marche-En-Famenne, Marloie, Barvaux and Aye. Childcare and schooling include 3 nurseries, 7 nursery schools, 7 primary schools and 3 secondary schools. Named institutions include Ecole Fondamentale Libre, Ecole Fondamentale Communale De Beausaint - Vecmont, Ecole Fondamentale Annexée La Roche-En-Ardenne, Ecole Communale Fondamentale, Institut Saint-Joseph - Sacré-Coeur and Athenee Royal De La Roche-En-Ardenne.
For groceries, the listed supermarket is 1 SPAR. There are 2 electric-vehicle charging stations, while shared bicycles and shared cars are not available in the commune at present. Liège Airport is 56 minutes away by car; the public-transport journey is 187 minutes. The current house-rental listings fall within a monthly range of €850 to €895.