A total of 34,975 people live in Tienen / Tirlemont, a municipality covering 72.8 km². The average resident is 43 years old, and women represent 51.6% of the population. Homeowners make up 72% of residents, while average net income per person is €19,683 per year. The population is 92.4% Belgian, 1% Dutch, 0.9% Romanian, 0.7% Polish, 0.6% Iraqi, 0.4% Moroccan, 0.3% Italian and 3.8% other nationalities. The average number of rooms is about 5.7. Buildings date on average from around 1944, with houses accounting for 77.5% and apartment buildings 22.5%. Across building types, 37.4% are closed-type houses, 21.6% buildings and flat blocks, 20.4% open-type houses, farms or castles, 16.4% semi-closed houses, 2.8% commercial houses and 1.3% other buildings.
The municipality currently has 17 properties for sale or rent across all categories. There are 0 flats listed for rent, and no monthly rent figure is given. The main road network includes the N3, R27, N29, N64 and N221. The A3 / E25 - E40 - E42 motorway towards Brussels, Leuven, Liège and Eupen is 4 minutes by car from the centre, while the A2 / E314 towards Leuven, Diest, Genk and Maasmechelen is 18 minutes away. Public transport includes 37 bus lines stopping in the municipality, among them De Lijn lines 22, 313, 346, 380 and 713. Stations listed for the area are Tienen / Thienen / Tirlemont, Ezemaal, Neerwinden, Vertrijk and Landen.
There are 9 nurseries, 12 nursery schools, 13 primary schools and 8 secondary schools in the municipality. Examples named locally include 'T Pagadderke, De Hartjes, Vrije Basisschool, Go! Basisschool De Uilenboom Tienen, Via-2 and Go! Atheneum Tienen. Shopping choices include 3 Carrefour, 2 Aldi, 2 Colruyt, 2 Delhaize, 1 Match / Smatch, 1 SPAR and 1 LIDL. Tienen / Tirlemont has 2 Blue-bike stations for bike hire, 2 Cambio stations for car sharing and 2 electric vehicle charging stations. Brussels Airport is 26 minutes away by car or 55 minutes by public transport.