In 2009, the town of Odijk had 4.411 inhabitants. The built-up area of the town was 0.94 km², so the density was very high, and contained 1809 residences. The neighbourhood of Cothen, which covers the entire area of the former municipality, has about 5040 inhabitants.
Odijk used to be a separate municipality. It merged with Bunnik and Werkhoven in 1964.
Odijk has three primary schools, two churches and many locations for sports activities, such as football, tennis and indoor sports.