|Coordinates: 52°38′N 22°27′E / 52.633°N 22.450°E|
|Elevation||125 m (410 ft)|
Zaszków [ˈzaʂkuf] is a village in the administrative district of Gmina Nur, within Ostrów Mazowiecka County, Masovian Voivodeship, in east-central Poland. It lies approximately 10 kilometres (6 mi) south-east of Nur, 42 km (26 mi) south-east of Ostrów Mazowiecka, and 109 km (68 mi) north-east of Warsaw.
The village has a population of 187.