Słupno is a village in the administrative district of Gmina Radzymin, within Wołomin County, Masovian Voivodeship, in east-central Poland. It lies approximately 4 kilometres south-west of Radzymin, 8 km north-west of Wołomin, and 23 km north-east of Warsaw.
The village has a population of 1,500.
Wikipedia https://en.wikipedia.org/wiki/Słupno,_Wołomin_County
Coordinates 52°23'18.786" N 21°8'44.12" E
