Viroinval has 5,659 residents within an area of 121.1 km². The average age is close to 44 years, and women represent 50.7% of the population. Some 66% of residents own their homes, with average annual net income of €15,144. Nationalities are 96.3% Belgian, 2.1% French, 0.5% Italian, 0.1% Romanian, 0.1% Dutch, 0.1% Portuguese, 0.1% German and 0.5% other. Households have an average of 1.1 cars.
There are currently 0 houses for rent in the municipality. The listed average monthly rent, lowest rent and highest rent are all €0. Houses represent 95.4% of buildings in Viroinval; apartment buildings account for 4.6%. The building mix also includes 31.2% closed-type houses, 24% open-type houses, farms and castles, 20.5% semi-closed-type houses, 18.7% other types, 3.6% buildings and flat blocks, and 2% commercial houses. Dwellings average 5.7 rooms, and buildings date on average from around 1922.
The local road network includes the N99, N939, N963, N990 and N998. The A54/E420 motorway entrance towards Nivelles and Charleroi is 46 minutes away by car. For the A4/E411–E25 route towards Brussels, Namur, Arlon and Luxembourg City, the entrance is 47 minutes from the centre of Viroinval. Bus connections are provided by TEC lines 156b from Pesche through Couvin and Dourbes to Mariembourg, 60/2 from Pesche through Couvin to Le Mesnil, 60/3 from Pesche through Couvin and Mazée to Heer, and E86 between Namur and Couvin. Nearby stations are Mariembourg, Couvin, Philippeville, Yves-Gomezée and Beauraing.
Childcare and education include 4 nurseries, 10 nursery schools and 10 primary schools; there is no secondary school in the municipality. Examples are Ecole Fondamentale Communale De Viroinval and École Libre Des Trois Vallées A. Viroinval has 1 Louis Delhaize and 1 OKay for grocery shopping. There are 2 electric-car charging stations, while shared bicycles and shared cars are not available in the municipality. Brussels South Charleroi Airport is 50 minutes away by car and 168 minutes by public transport.