Leiderdorp is a town and municipality in the western Netherlands, in the province of South Holland near the city of Leiden. It had a population of 27,109 in 2019.
The municipality covers an area of 12.28 km2 of which 0.70 km2 is water. Leiderdorp has now become a suburb of the city of Leiden, although the Oude Rijn river and the Zijl river separate the two. The HSL-Zuid high-speed rail line between Amsterdam and Brussels crosses Leiderdorp in a tunnel.
It is one of the oldest towns in South Holland province and was a base for the Spanish army in the Eighty Years' War.
Wikipedia https://en.wikipedia.org/wiki/Leiderdorp
Official Website https://www.leiderdorp.nl/
Coordinates 52°9'42.463" N 4°32'2.732" E