Słupca [ˈswupt͡sa] is a village in the administrative district of Gmina Bulkowo, within Płock County, Masovian Voivodeship, in east-central Poland. It lies approximately 4 kilometres (2 mi) north-west of Bulkowo, 26 km (16 mi) east of Płock, and 76 km (47 mi) north-west of Warsaw.