Nieuwveen is a town in the Dutch province of South Holland. It is a part of the municipality of Nieuwkoop, and lies about 9 km northeast of Alphen aan den Rijn. In 2001, the town of Nieuwveen had 2806 inhabitants. The built-up area of the town was 0.73 km², and contained 931 residences. The statistical area "Nieuwveen", which also can include the peripheral parts of the village, as well as the surrounding countryside, has a population of around 3630. Nieuwveen was a separate municipality until 1994, when it became part of Liemeer. The Jostiband Orchestra was founded here.