The current house-rental market in Zwalm / Zwalin has 1 listing, at €1,300 per month. The same figure is both the highest and lowest listed monthly rent for a house. The municipality has 8,148 inhabitants spread over 33.9 km²; the average age is about 43. Homeowners make up 84% of residents, and average net income is €21,547 per person per year. Nationalities are listed as 98.7% Belgian, 0.4% Dutch, 0.2% Polish, 0.1% Romanian and 0.4% other, with 0% French, 0% Hungarian and 0% Portuguese.
Houses make up 96.5% of the building stock, while apartment buildings account for 3.5%. The average dwelling has 6.3 rooms, and buildings date from around 1950 on average. Across all building types, 50.9% are detached houses, farms and castles, 32.6% semi-detached houses, 8.7% terraced houses, 3.3% buildings and apartment blocks, 2.8% commercial houses and 1.7% other types. There are also 10 houses for sale, with an average asking price of €476,700 and a range from €369,000 to €810,000. The one house currently listed for rent is €1,300 per month; the municipality also has 1 flat for rent at €950 per month.
The N46, N415, N435 and N454 are the main roads passing through Zwalm / Zwalin. A drive from the centre to the nearest A14 / E17 access takes 17 minutes; that motorway runs through Antwerpen, Sint-Niklaas, Gent and Kortrijk towards Lille. The A10 / E40 access is 18 minutes from the centre, on the Brussels–Aalst–Gent–Brugge–Oostende route. De Lijn bus lines 41, 420, 445, 45 and 81 stop in the municipality. The nearest stations are Munkzwalm, Sint-Denijs-Boekel, Zingem, Balegem-Zuid and Balegem-Dorp. The listed bus routes include services towards Sint-Truiden, Diest, Tienen, Brasschaat, Hasselt, Genk, Maaseik, Deinze, Gavere and Zottegem.
Childcare and education facilities include 3 nurseries, 5 nursery schools and 5 primary schools. Zwalmnest and Gina En Joyca are examples of nurseries; Vrije Basisschool - Munkzwalm Vzw and Vrije Basisschool Hundelgem are examples of nursery schools. Primary-school examples are Vrije Basisschool - De Groene Heuvel and Go! Basisschool De Zonnewijzer. There is no secondary school in the municipality. Grocery shopping options include 1 Match / Smatch and 1 Aldi. No shared bicycles or shared cars are available in Zwalm / Zwalin, and there is no known charging station. Wevelgem Airport is 37 minutes away by car and 78 minutes by public transport.