Lievegem extends over 80.8 km² and is home to 26,162 people. The average age is about 44, 51% of residents are women, and 72% own their homes. Average net income per person is €20,543 a year. The population is 97.3% Belgian, 0.4% Dutch, 0.3% Romanian, 0.3% Polish, 0.3% Bulgarian, 0.1% Slovakian, 0.1% French and 1.3% other. Dwellings average 6 rooms, with buildings dating on average from around 1959. Houses represent 90.7% of dwellings and apartment buildings 9.3%. The building mix also includes 46.1% detached houses, farms and castles, 27.4% semi-detached houses, 14.1% terraced houses, 9% apartment buildings, 2.5% commercial houses and 0.8% other buildings.
No apartments are currently listed for rent in Lievegem, and no rental price is stated. The N9 and N461 are local road connections. By car, the A10/E40 is 12 minutes from the centre, with its route through Brussels, Aalst, Ghent, Bruges and Ostend. The A14/E17, connecting Antwerp, Sint-Niklaas, Ghent and Kortrijk towards Lille, is 16 minutes away. De Lijn bus lines listed in the area are 160, 58, 65, 67 and 69. Line 67 runs from Ghent Sint-Pieters station through Zomergem and Waarschoot to Eeklo; line 69 connects Waarschoot and Ghent Zuid. The nearest stations to the centre are Landegem, Sleidinge, Hansbeke, Drongen/Tronchiennes and Waarschoot.
The municipality has 13 nurseries, including De Vrolijke Vriendjes and Kinderdagverblijf Lo & Co, and 11 nursery schools, among them Vrije Kleuterschool - 'T Kersenpitje and Go! Basisschool De Zandloper Zomergem. School provision also includes 10 primary schools and 2 secondary schools, with Vrije Lagere School - De Lieve, Vrije Basisschool - Sint-Martinus, Sint-Vincentiuscollege - Middenschool and Instituut Sint-Lutgardis among the named examples. Shops include 3 OKay supermarkets, 3 Carrefour stores, 2 Delhaize stores and 1 Aldi. There are 3 electric-vehicle charging stations in Lievegem, while shared bicycles and shared cars are not available. Wevelgem Airport is 41 minutes away by car and 90 minutes by public transport.