Andenne covers 86.1 km² and has 27,391 residents. The average age is 40, women account for 51.3% of the population, and 68% of households own their dwelling. Average net income per capita is €16,847 annually. Residents’ nationalities are 95.2% Belgian, 1.1% Italian, 1.1% French, 0.5% Spanish, 0.4% Moroccan, 0.2% Romanian, 0.2% Portuguese and 1.3% other. Houses make up 81.3% of dwellings, compared with 18.7% in apartment buildings. The average building year is 1931, and the average home has about 5.9 rooms. Across the building stock, 31% are open-type houses, farms or castles, 26.3% semi-detached houses, 21.2% terraced houses, 18.1% apartment buildings, 2.4% commercial houses and 1% other types.
There are 3 houses available to rent at present. Monthly rents average €1,117, with the listed range running from €850 to €1,250. Andenne is served by the N80, N90, N90b, N921 and N942. Driving from the centre to the A15/E42 takes about 7 minutes, and access to the A4/E411–E25 takes about 15 minutes. TEC bus routes include line 12 from Namur to Huy, line 13 from Andenne (Seilles) to Ciney, line 19 from Andenne to Forville, line 40 from Namur via Gelbressée to Vezin, and line 42 from Namur via Faulx to Andenne (Seilles). Stations near the centre include Andenne, Château-De-Seilles, Sclaigneaux, Bas-Oha and Namêche.
Families have access to 27 nurseries, 24 nursery schools, 24 primary schools and 5 secondary schools in the municipality. Named examples include Ecole Fondamentale Communale D'Andenne III “la Chouette Ecole”, Ecole Fondamentale Libre Sainte-Begge 3 and Athenee Royal Jean Tousseul. For shopping, the local choice includes 3 Delhaize stores, 1 Louis Delhaize, 1 Match/Smatch, 1 Trafic, 1 SPAR, 1 Aldi, 1 Lidl, 1 Carrefour and 1 Colruyt. There are 4 electric-vehicle charging stations. Andenne has no shared cars or shared bicycles. Liège Airport can be reached in about 25 minutes by car or 88 minutes by public transport.