🇳🇱 Alphen aan den Rijn is a city and municipality in the western Netherlands, in the province of South Holland, between Leiden and Utrecht. The city is situated on the banks of the river Oude Rijn, where the river Gouwe branches off. The municipality of Alphen aan den Rijn also includes the communities of Aarlanderveen, Zwammerdam, and Boskoop. The city is located in what is called the 'Green Heart' of the Netherlands, which is a somewhat less densely populated centre area of the Randstad.
The name "Alphen" is probably derived from the name of the Roman fort Albaniana, meaning "settlement at the white water". Its remains still lie underneath the city centre. Economy The information and publishing company Wolters Kluwer is based in Alphen aan den Rijn.
Alphen aan den Rijn has a population of over 110,986 people. Alphen aan den Rijn also forms part of the wider Randstad metropolitan area which has a population of over 8,400,000 people.