Wólka Grochowa [ˈvulka ɡrɔˈxɔva] is a village in the administrative district of Gmina Długosiodło, within Wyszków County, Masovian Voivodeship, in north-central Poland. It lies approximately 4 kilometres (2 mi) north of Długosiodło, 25 km (16 mi) north of Wyszków, and 77 km (48 mi) north-east of Warsaw. Its postal code is 07210.