Hoogheemraadschap van Delfland

Hoogheemraadschap van Delfland
Coordinates: 52°00′42″N 4°21′20″E / 52.0118°N 4.3556°E / 52.0118; 4.3556
CountryNetherlands
Heemraden van Delfland1289
Founded byWilliam I, Duke of Bavaria
Seat (Gemeenlandshuis)Delft
Government
  DijkgraafMichiel van Haersma Buma
Area
  Total
410 km2 (160 sq mi)
Population
  Total
1,400,000
  Density3,400/km2 (8,800/sq mi)
Websitewww.hhdelfland.nl

The Hoogheemraadschap van Delfland is a Dutch waterboard, which is responsible for water management. It covers the municipalities of Delft, Midden-Delfland and The Hague, and is fully located in the province of South Holland. The organization was established in 1289 when William I, Duke of Bavaria (As William V, Count of Holland) authorized the "Heemraden of Delft" to manage water and serve as a court.