Hellevoetsluis

Hellevoetsluis
Flag of Hellevoetsluis
Coat of arms of Hellevoetsluis
Highlighted position of Hellevoetsluis in a municipal map of South Holland
Location in South Holland
Coordinates: 51°49′N 4°8′E / 51.817°N 4.133°E / 51.817; 4.133
CountryNetherlands
ProvinceSouth Holland
MunicipalityVoorne aan Zee
Area
 • Total
61.20 km2 (23.63 sq mi)
 • Land41.10 km2 (15.87 sq mi)
 • Water20.10 km2 (7.76 sq mi)
Elevation
2 m (6.6 ft)
Population
 (January 2021)
 • Total
40,312
 • Density981/km2 (2,540/sq mi)
DemonymHellevoeter
Time zoneUTC+1 (CET)
 • Summer (DST)UTC+2 (CEST)
Postcode
3220–3225
Area code0181
Websitewww.hellevoetsluis.nl
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Dutch Topographic map of Hellevoetsluis (town), Sept. 2014

Hellevoetsluis (Dutch pronunciation: [ˌɦɛləvutˈslœys] ⓘ) is a town and former municipality in the west of Netherlands. It is located in Voorne-Putten, South Holland. The former municipality covered an area of 61.20 km2 (23.63 sq mi) of which 20.10 km2 (7.76 sq mi) was water and it included the population centres of Nieuw-Helvoet, Nieuwenhoorn, and Oude en Nieuwe Struiten, all former municipalities.

Hellevoetsluis is located on the Haringvliet with the sea, beach, and dunes close by, on the extreme southern edge of the Rijnmond and Europoort areas, close to the broad Zeeland landscape. The name translates as "lock at the foot of the Helle". The Helle was a small local river that disappeared over time.

On 1 January 2023, the municipality of Hellevoetsluis merged with Brielle and Westvoorne into the new municipality of Voorne aan Zee.