Sierakowo [ɕɛraˈkɔvɔ] is a village in the administrative district of Gmina Raciąż, within Płońsk County, Masovian Voivodeship, in east-central Poland.^[1] It lies approximately 3 kilometres (2 mi) east of Raciąż, 23 km (14 mi) north-west of Płońsk, and 86 km (53 mi) north-west of Warsaw.