Ohey has a housing stock in which houses make up 93.3% of dwellings and apartment buildings 6.7%. Homes average 6.4 rooms, and the buildings date on average to around 1926. The building mix includes 60.1% open-type houses, farms or castles, 25.3% semi-detached houses, 5.2% closed-type houses, 1.3% commercial houses and 1.5% other types of building. The municipality has 5,127 inhabitants spread over 56.7 km². The average age is about 38, 79% of residents own their homes, and average net income is €17,630 per person per year. Nationalities are 98% Belgian, 0.7% French, 0.4% Italian, 0.2% German, 0.1% Portuguese, 0.1% Dutch, 0.1% Spanish and 0.4% other.
There are currently 0 houses for rent in Ohey, and the supplied average monthly rent is €0. The local road network includes the N698, N921 and N983. From the centre, an entrance to the A4/E411–E25 is 13 minutes away by car; the route serves Brussels, Namur and Arlon, continuing towards Luxembourg City. An entrance to the A15/E42, on the La Louvière–Charleroi–Namur–Liège corridor, is 15 minutes away.
Bus services are provided by TEC lines 13, 14 and 42, as well as line 96/1, the Proxibus de Gesves. Line 13 runs between Andenne (Seilles) and Ciney, line 14 links Ohey and Gesves, and line 42 connects Namur, Faulx and Andenne (Seilles). The nearest stations to the centre are Andenne, Château-De-Seilles, Sclaigneaux, Namêche and Florée. Ohey has 10 nurseries, 5 nursery schools and 5 primary schools, with no secondary school in the municipality. Examples include Sandra Hobe and Paulette Libois for childcare, and Ecole Fondamentale D'Ohey I and II. The commune has 1 OKay and 1 Intermarché.
Households in Ohey average 1.4 cars. There are 2 electric-vehicle charging stations, but no shared bicycles or shared cars. Liège Airport is 33 minutes away by car and 51 minutes by public transport. Local employment includes 44 businesses in mixed farming, 20 in motor-vehicle maintenance and repair, 18 in electrical installation and 18 in landscape services. Other common fields include business and management consultancy, with 17 firms, and hairdressing and beauty treatment, also with 17. The municipality’s current house-for-rent count is 0.