Houffalize is a municipality of 5,193 inhabitants spread over 167.4 km². The average age is about 41, and 72% of residents are homeowners. Average net income is €17,084 per person per year, while households have an average of 1.2 cars. The population is 94.9% Belgian, 1.5% Dutch, 1% French, 0.3% Italian, 0.2% Iraqi, 0.2% Spanish, 0.2% Luxembourgish and 1.7% other nationalities. Houses account for 92.7% of the housing stock and apartment buildings for 7.3%. The average dwelling has about 6.3 rooms, and buildings date on average from 1945.
Across the municipality, 62.1% of buildings are open-type houses, farms or castles; 15.5% are semi-closed houses, 4.9% closed-type houses, 4.1% commercial houses, 6.5% buildings and flat blocks, and 7% other types. No houses are currently listed for rent. The local house-sale market has 16 properties, with an average price of €340,125 and a range from €119,000 to €950,000. For apartments, there are also no rentals currently listed; the 2 flats for sale average €255,000 and range from €185,000 to €325,000.
The N30, N638, N812, N826 and N827 provide road links in the area. From the centre, the A26/E25 is a 2-minute drive, connecting Liège, Bastogne and Neufchâteau. The A27/E42 is 30 minutes away, with its route through Battice, Verviers, Malmedy and Sankt-Vith towards Bitburg in Germany. TEC bus services include 15/2 (Houffalize–La Roche), 163c (Bastogne–Houffalize–Gouvy), 163d (Gouvy–Tavigny–Bastogne), 17 (Namur–Acosse) and E69 (Liège–Bastogne–Arlon). Nearby stations are Gouvy, Gouvy-Frontiere, Bastogne-Nord, Troisvierges and Bastogne-Sud.
Childcare and education options include 10 nurseries, 7 nursery schools, 7 primary schools and Athenee Royal De Bastogne - Houffalize at secondary level. The supermarkets listed are 1 SPAR and 1 Delhaize. There is no known charging station for electric vehicles in the municipality, and shared bicycles or shared cars are not reported as available. Liège Airport is 49 minutes away by car and 116 minutes by public transport.