Walhain is a municipality covering 38.1 km² with a population of 7,187 inhabitants. The average age in the area is roughly 38 years old, and about 76% of residents own their homes. Income per capita is around €21,926 net annually. The community is predominantly Belgian, representing 96.1% of the population, with small minorities from France, Italy, Romania, Spain, the UK, Portugal, and others. Houses here tend to be larger than average by Belgian standards, with an average of 6.4 rooms compared to the national average of 6. The housing stock mainly consists of houses—93.4% of buildings are houses rather than flats—with over half being open-type houses, including farms and castles. Semi-closed and closed types make up roughly a third of the houses.
Currently, there are 5 houses for sale in Walhain with an average price of €862,000. Prices range significantly from €360,000 to €1,500,000. These prices reflect the size and variety of houses available in the area. The area benefits from good connectivity: the A4/E411 - E25 motorway entrance is about 5 minutes by car from the town center, providing direct routes to Brussels, Namur, Arlon, and Luxembourg city. Another motorway, the A15/E42, is accessible within 17 minutes. Several national roads pass nearby including the N4 and N243 series.
Public transport includes seven bus lines running through Walhain, such as TEC lines 24, 25, 34, 52, and 543 connecting to nearby towns like Wavre, Gembloux, Jodoigne, and Louvain-la-Neuve. The nearest train stations are in Chastre, Ernage, Blanmont, Gembloux, and Mont-Saint-Guibert, providing further rail connections.
Families in Walhain have access to local education facilities including two nurseries and four nursery schools along with four primary schools. However, there is no secondary school within the municipality. For shopping needs, residents can use one Intermarché and two Louis Delhaize supermarkets plus a Delhaize store. There are no shared mobility options such as bike sharing or car sharing in the area, nor any electric vehicle charging stations known within Walhain. The nearest airport is Brussels South Charleroi Airport about 27 minutes away by car.