Drewnowo-Ziemaki is a village in the administrative district of Gmina Boguty-Pianki, within Ostrów County, Masovian Voivodeship, in east-central Poland.
Drewnowo-Ziemaki along with Drewnowo-Goà Âyà Â, Drewnowo-Dmoszki, Drewnowo-Konarze and Drewnowo-Lipskie was a part of the okolica szlachecka of Drewnowo.