Steenokkerzeel has 12,135 inhabitants across 23.6 km². The average age is about 41, and 74% of residents own their homes. The average net income per person is €22,369 a year. Residents are 93.6% Belgian, 0.8% Dutch, 0.7% Italian, 0.7% Polish, 0.5% Romanian, 0.4% French, 0.4% Spanish and 3% other nationalities. For buyers looking at houses, the current listings range from €295,000 to €1,295,000, with an average asking price of €600,481. There are 22 houses for sale.
Houses make up 90.1% of the municipality’s dwellings, while apartment buildings account for 9.9%. The building stock has an average construction year of 1963 and an average of about 7.3 rooms. By building type, 47.4% are detached houses, farms or castles, 25.1% semi-detached houses, 15.7% terraced houses, 9.7% buildings and apartment blocks, 1.7% commercial houses and 0.4% other types. The R0 is 9 minutes by car from the centre, as is the A3 / E25 - E40 - E42 route towards Brussels, Leuven, Liège, Eupen and Aachen. The N21, N227, N227b and N278 pass through Steenokkerzeel.
Bus services include De Lijn lines 270 between Brussels, Haacht and Keerbergen; 651 between Leuven, Everb, Kortenberg, Steenokkerzeel, Cargo and Luch; 660 between Zaventem, Haacht and Bonheiden; and 681 and 682, which connect Mechelen and nearby towns with Zaventem. Steenokkerzeel has 15 bus lines. The nearest stations to the centre are Brussels Airport - Zaventem, Kortenberg, Nossegem, Zaventem and Diegem. No metro or tram service is listed. Families have 5 nurseries, 4 nursery schools and 4 primary schools in the municipality; there is no secondary school. The named examples include De Okkertjes, Bij Falke, Vrije Kleuterschool, Vrije Basisschool Ter Ham, Vrije Basisschool - Sint-Cajetanusschool and Gemeentelijke Basisschool - Piramide & Tilia.
For everyday shopping, Steenokkerzeel has 1 OKay, 1 Carrefour and 1 Delhaize. There is 1 electric-vehicle charging station. Shared bicycles and shared cars are not available in the municipality. Brussels Airport is 10 minutes away by car or 26 minutes by public transport. These local details sit alongside a housing market in which houses are the predominant dwelling type, and the current sale listings span the stated price range from €295,000 to €1,295,000.