|Time zone||UTC+1 (CET)|
|• Summer (DST)||UTC+2 (CEST)|
Achttienhoven used to be a heerlijkheid (manor), until it became part of Westbroek in 1812. From 1818 to 1954, Achttienhoven was a separate municipality again. It then merged with Westbroek, which in its turn was annexed by Maartensdijk in 1957.
According to the 19th-century historian A.J. van der Aa, the village used to be called "Everckesdorp".
It was first mentioned between 1280 and 1287 as achtienhoeven, and means eighteen parcels of land. Achttienhoven is not a statistical entity, and the postal authorities have placed it under Westbroek. It has place name signs. In 1840, it was home to 236 people. Nowadays, it consists of about 120 houses.
- "Postcode 3615 in Westbroek". Etymologiebank (in Dutch). Retrieved 28 March 2022.
- Ad van der Meer and Onno Boonstra, Repertorium van Nederlandse gemeenten, KNAW, 2011.
- Abraham Jacob van der Aa, "Aardrijkskundig woordenboek der Nederlanden", vol. 1 (A), 1839, p. 49.
- "Achttienhoven - (geografische naam)". Etymologiebank (in Dutch). Retrieved 28 March 2022.
- "Kerncijfers wijken en buurten 2021". Central Bureau of Statistics. Retrieved 28 March 2022.
- "Achttienhoven (Westbroek)". Plaatsengids (in Dutch). Retrieved 28 March 2022.