Kwadijk is a village and former municipality in the northwest Netherlands. It is a part of the municipality of Zeevang in the Dutch province of North Holland. Kwadijk is located about 20 kilometres north of Amsterdam and about 3 kilometres north of Purmerend. In 2001, the village of Kwadijk had 270 inhabitants. The built-up area of the village was 0.05 km², and contained 101 residences. The statistical district "Kwadijk", which covers the village and the surrounding countryside, has a population of around 780.