In 2001, the town of Ouderkerk aan de Amstel had 7,256 inhabitants. The built-up area of the town was 1.5 kmĀ², and contained 3,043 residences. The broader area of Ouderkerk aan de Amstel, which includes residences on the periphery of the village and in the surrounding countryside, has a population of around 7,480.
The town is the location of the Beth Haim of Ouderkerk aan de Amstel, the oldest Jewish cemetery in the Netherlands