Somme-Leuze has 5,641 inhabitants across 95.2 km², with an average age of 40. Owners make up 78% of residents, and average net income per person is €17,139 a year. The population is 50.1% men. Nationalities are 96.8% Belgian, 0.9% French, 0.4% Italian, 0.4% Dutch, 0.4% Polish, 0.2% Romanian, 0.1% British and 0.8% other. Houses account for 97.7% of the housing stock, while apartment buildings make up 2.3%. Across homes, the average is 5.7 rooms, and buildings date on average from 1955.
There are 24 houses for sale in Somme-Leuze. The average asking price is €348,503, with current prices ranging from €58,500 to €1,050,000. The wider building mix includes 55.6% open-type houses, farms and castles, 27.8% other building types, 11.3% semi-closed houses, 3% closed houses, 1.7% buildings and flat blocks, and 0.6% commercial houses. These figures describe the municipality’s buildings, alongside a local housing stock in which houses predominate.
Road access includes the N638, N929, N953 and N983. From the centre, access to the A26 / E25 towards Liège, Bastogne and Neufchâteau takes 26 minutes by car; access to the A4 / E411 - E25 towards Brussels, Namur, Arlon and Luxembourg City also takes 26 minutes. TEC buses include line 162a2 between Marloie, Heure and Noiseux, line 48 between Ciney and Bonsin, line 97d between Nettinne and Marche, line 99 between Ocquier, Durbuy, Barvaux and Bomal, and line E20 between Liège and Marche. The nearest stations to the centre are Melreux-Hotton, Barvaux, Bomal, Marche-En-Famenne and Aye. No metro or tram service is listed.
For families, Somme-Leuze has 6 nurseries, 4 nursery schools and 4 primary schools, including Ecole Communale Fondamentale; there is no secondary school in the municipality. The local business mix includes 60 companies in mixed farming, 24 in joinery installation, 24 in hairdressing and beauty treatment, 18 in residential and non-residential building construction, 18 in landscape services, and 16 in restaurants and mobile food services. There is no known EV charging station, and the municipality does not appear to have shared bicycles or shared cars. Liège Airport is 33 minutes away by car or 125 minutes by public transport. The average is 1.3 cars per household.