's-Gravenzande is a town in the Dutch province of South Holland. It is a part of the municipality of Westland, and lies about 12 km southwest of The Hague. Until 2004 it was a separate municipality and covered an area of 20.77 km² (of which 3.38 km² water). The town of 's-Gravenzande had 15,241 inhabitants in 2011. The built-up area of the town was 2.7 km², and contained 5,879 residences. The statistical area "'s-Gravenzande", which also can include the peripheral parts of the village, as well as the surrounding countryside, has a population of around 19,750. As of 1 January 2009, 's-Gravenzande is the largest town in Westland with 19.428 inhabitants. The former municipality of 's-Gravenzande also included the township of Heenweg.