There are 4 flats for rent in Walhain at present. The average listed rent is €876 per month; current rents range from €650 to €1,150 per month. Walhain is home to 7,187 people over 38.1 km². The average age is about 38, women account for 50.2% of residents, and 76% of residents own their homes. Average net income is €21,926 per person per year. The population is 96.1% Belgian, 1.3% French, 0.5% Italian, 0.4% Romanian, 0.2% Spanish, 0.2% British, 0.2% Portuguese and 1.2% other nationalities.
Apartment buildings represent 6.6% of dwellings in the commune, while houses make up 93.4%. The average dwelling has 6.4 rooms, and buildings were generally constructed around 1935. Across the building stock, 56.8% are open-type houses, farms and castles, 26.1% semi-closed houses, 7.2% closed-type houses, 6.4% buildings and apartment blocks, 2.6% other building types and 0.9% commercial houses. For buyers, 2 flats are currently listed, at an average of €287,500; the sale prices run from €275,000 to €300,000.
Getting around by road means using routes such as the N4, N243a, N243 and N273. The A4 / E411 - E25 entrance is 5 minutes by car from the centre of Walhain, and the A15 / E42 entrance is 17 minutes away. These motorways connect towards Brussels, Namur, Arlon and Luxembourg City, and towards La Louvière, Charleroi, Namur and Liège respectively. There are 7 bus lines serving the commune, including TEC lines 24, 25, 34, 52 and 543. Chastre, Ernage, Blanmont, Gembloux and Mont-Saint-Guibert are the nearest stations to the centre.
The commune has 2 nurseries, 4 nursery schools and 4 primary schools, with no secondary school. Examples include Le Petit Favia and Les P'Tits Loups for childcare, and Ecole Fondamentale Communale and Ecole Fondamentale Autonome Nil-Saint-Vincent for schooling. Grocery shopping options include 2 Louis Delhaize stores, 1 Intermarché and 1 Delhaize. Walhain has no known EV charging station, shared bicycles or shared cars. Brussels South Charleroi Airport is 27 minutes away by car or 124 minutes by public transport.