Saint-Gilles / Sint-Gillis has 50,267 inhabitants across 2.5 km², with an average age of 36. The commune is mainly tenant-occupied: 74% of residents rent their homes. Average net income per person is €13,438 annually, and households have an average of 0.4 cars. Nationalities represented include 52.8% Belgian, 11.3% French, 5.1% Portuguese, 4.5% Italian, 4% Spanish, 3.1% Moroccan, 2.8% Romanian and 16.4% other. Homes have an average of 4.3 rooms, compared with 6 nationally. The average building dates from around 1903, and the stock consists of 43.2% buildings and flat blocks, 43.5% closed-type houses, 12.5% commercial houses, 0.7% other types and 0.1% semi-closed houses.
There are 110 flats for rent, with an average monthly rent of €1,446. Current listings range from €622 to €5,445 per month. Other available property includes 71 flats for sale, averaging €362,031, and 8 houses for rent. The N261 and N266 provide road connections within the commune. By car, the R0 entrance is 7 minutes from the centre and the A4 / E411–E25 entrance is 11 minutes away.
For public transport, metro lines 2 and 6 both reach Elisabeth, from Simonis and Roi Baudouin respectively. The commune has 7 tram lines with stops; examples include lines 3, 4, 51, 81 and 92. Its 25 bus lines include STIB routes 48, 49 and 50, De Lijn route 136 and TEC route W. Nearby railway stations are Bruxelles-Midi, Bruxelles-Chapelle, Bruxelles-Central, Germoir and Bruxelles-Luxembourg. Brussels Airport takes 55 minutes by public transport or 14 minutes by car.
There are 28 nurseries, 14 nursery schools, 16 primary schools and 6 secondary schools in Saint-Gilles / Sint-Gillis. Examples include Dream Land, Ecole Communale 1/2, Ecole Nouvelle and Lycée Intégral Roger Lallemand. Grocery shopping includes 7 Carrefour, 6 Delhaize, 2 Louis Delhaize, 1 OKay and 1 Match / Smatch. The commune also has 12 Villo! bicycle stations, 14 Cambio stations and 4 electric-vehicle charging stations.