Herent has 21,682 inhabitants across 32.7 km². The average age is close to 41, 79% of residents own their homes, and average annual net income is €24,489. Women make up 51.3% of the population. Nationalities are 94.7% Belgian, 1.1% Dutch, 0.5% Polish, 0.4% Romanian, 0.2% German, 0.2% Italian, 0.2% French and 2.7% other. The housing stock averages 6.2 rooms, compared with 6 across Belgium, and buildings have an average construction year of 1964.
Houses account for 80.5% of dwellings in Herent, while apartment buildings account for 19.5%. By building type, 41.1% are detached houses, farms or castles, 24.2% semi-detached houses, 19% buildings and blocks of flats, 13.5% terraced houses, 1.4% commercial houses and 0.8% other types. There are 7 houses for sale. Their average listed price is €757,714, with the current range from €450,000 to €1,195,000.
The A2/E314, on the Leuven–Diest–Genk–Maasmechelen route, is about a 2-minute drive from the centre. The A3/E25–E40–E42 towards Brussels, Leuven, Liège and Eupen is about 8 minutes away. The N2 and N26 also serve the municipality. Public transport includes 21 bus lines, among them De Lijn 285 between Mechelen, Kampenhout and Leuven, 352 between Kraainem, Kortenberg, Erps-Kwerps and Leuven, and 358 between Brussels, Kortenberg and Leuven. Stations include Herent, Wijgmaal, Veltem, Hambos and Leuven. No metro or tram service is listed.
For families, Herent has 10 nurseries, 7 nursery schools and 7 primary schools; there is no secondary school in the municipality. Supermarkets include 2 Delhaize stores, 1 Louis Delhaize, 1 OKay, 1 SPAR and 1 Carrefour. There are no shared bicycles and no known EV charging station in the municipality. Cambio car sharing is available at 3 stations. Brussels Airport is about 15 minutes away by car or 38 minutes by public transport.