Zwammerdam is a town in the Dutch

Netherlands

The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...

 province of South Holland

South Holland

South Holland is a province situated on the North Sea in the western part of the Netherlands. The provincial capital is The Hague and its largest city is Rotterdam.South Holland is one of the most densely populated and industrialised areas in the world...

. It is a part of the municipality of Alphen aan den Rijn

Alphen aan den Rijn

Alphen aan den Rijn is a town and municipality in the western Netherlands, in the province of South Holland, between Leiden and Utrecht. The town is situated on the banks of the river Oude Rijn , where the river Gouwe branches off. The municipality had a population of 72,674 in 2010, and covers an...

, and lies about 6 km southeast of Alphen aan de Rijn.

In 2001, the town of Zwammerdam had 1709 inhabitants. The built-up area of the town was 62 km², and contained 484 residences.
The statistical area "Zwammerdam", which also can include the surrounding countryside, has a population of around 1810.

Zwammerdam was a separate municipality until 1964, when it was divided between Alphen aan den Rijn and Bodegraven

Bodegraven

Bodegraven is a town and former municipality in the western Netherlands, in the province of South Holland. The former municipality covers an area of 38.50 km² of which 1.02 km² is water....

. The town is the current home of the Jostiband Orchestra

Jostiband Orchestra

The Jostiband Orchestra is a Dutch orchestra for the mentally handicapped.The band was formed in September 1966 as a music club of the Johannes Stichting in Nieuwveen. In 1974, it moved to Zwammerdam, which has since been the home of the orchestra...