Yvoir covers 57.1 km² and has 9,167 inhabitants. The average age is close to 40, and women account for 50.1% of residents. Owners make up 71% of the population, while average net income is €19,347 per year. Nationalities represented include Belgian at 94.6%, Portuguese at 1.4%, French at 1.2%, Italian at 0.4%, Romanian at 0.3%, Ukrainian at 0.1%, Spanish at 0.1% and other nationalities at 1.8%. The average household has 1.3 cars, as in the country overall.
The housing stock is predominantly houses: 93.9% of dwellings are houses and 6.1% are in apartment buildings. Dwellings have an average of 6.2 rooms, and the average building dates from 1936. By building type, 51.7% are open-type houses, farms and castles; 19.3% are semi-detached houses; 10.9% are closed-type houses; 11.1% are other types; 5.4% are buildings and flat blocks; and 1.5% are commercial houses. There is 1 house for rent. Its monthly rent is €1,000, which is both the lowest and highest listed rent for a house in Yvoir.
The N92, N96, N937, N946 and N947 run through the municipality. The A4/E411–E25, serving the Brussels–Namur–Arlon route and continuing towards Luxembourg City, is a 15-minute drive from the centre. Reaching the A15/E42 towards La Louvière, Charleroi, Namur and Liège takes 24 minutes. Bus connections include TEC line 128, Ciney–Durnal–Yvoir; line 129, Ciney–Dorinne–Yvoir; line 131, Dinant–Thynes–Spontin; line 4, Namur–Mont-Godinne CHU; and line 433, Namur–Mont–Dinant. Stations in the area are Yvoir, Godinne, Lustin, Dinant and Anseremme.
Childcare and education options listed for Yvoir include 10 nurseries, 11 nursery schools, 12 primary schools and 2 secondary schools. Named examples are Village Des Enfants and Durnal - Les Petits Pahauts, Ecole Fondamentale Communale, Petit Collège De Godinne - Enseignement Primaire, College De Godinne-Burnot D2-D3 and College De Godinne-Burnot D.o.a. The town has 1 SPAR and 1 Carrefour. There are no shared bikes or shared cars in the municipality, and no charging station is known there. Brussels South Charleroi Airport is 39 minutes away by car and 108 minutes by public transport.