Saint-Gilles / Sint-Gillis is a 2.5 km² commune with 50,267 residents and an average age of 36. Tenants account for 74% of residents. Average net income per person is €13,438 per year, and households own about 0.4 cars on average. The population comprises 52.8% Belgians, 11.3% French, 5.1% Portuguese, 4.5% Italian, 4% Spanish, 3.1% Moroccan, 2.8% Romanian and 16.4% other nationalities. Accommodation averages 4.3 rooms, against a national average of 6, and the average building dates from around 1903. The building stock is made up of 43.5% closed-type houses, 43.2% buildings and flat blocks, 12.5% commercial houses, 0.7% other types and 0.1% semi-closed houses.
There are 8 houses for rent at present. The average monthly rent is €7,739, with listed rents from €880 to €13,500. The commune also has 110 flats for rent, alongside 42 houses and 71 flats for sale. For driving, the N261 and N266 are among the roads serving Saint-Gilles / Sint-Gillis. The nearest R0 entrance is 7 minutes by car from the centre; the A4 / E411–E25 entrance is 11 minutes away by car.
The public transport network includes metro lines 2 and 6, running between Simonis and Elisabeth, and Roi Baudouin and Elisabeth respectively. Tram lines with stops in the commune include 3, 4, 51, 81 and 92, within a total of 7 lines. There are 25 bus lines, including STIB 48, 49 and 50, De Lijn 136 and TEC W. The nearest stations to the centre are Bruxelles-Midi, Bruxelles-Chapelle, Bruxelles-Central, Germoir and Bruxelles-Luxembourg. Brussels Airport is 14 minutes away by car, or 55 minutes by public transport.
Childcare and education provision includes 28 nurseries, 14 nursery schools, 16 primary schools and 6 secondary schools. Named examples include Marie Janson, Dream Land, Ecole Nouvelle and Institut Saint-Luc. The supermarket count is 7 Carrefour, 6 Delhaize, 2 Louis Delhaize, 1 OKay and 1 Match / Smatch. For shared and lower-emission travel, there are 12 Villo! bicycle stations, 14 Cambio stations and 4 electric-vehicle charging stations in the commune.