Alblasserdam (Dutch: [ɑlˌblɑsərˈdɑm]) is a town and municipality in the western Netherlands, in the province of South Holland. It covers an area of 10.06 km (3.88 sq mi), of which 1.27 km (0.49 sq mi) is water, and has a population of 19,838 as of 2014. Alblasserdam is officially a part of the Drechtsteden region. A portion of the small village of Kinderdijk, which boasts the largest and most famous concentration of windmills in the Netherlands, is part of Alblasserdam.