Siemiątkowo is a village located in east-central Poland. It is situated within the administrative district of Gmina Troszyn, which falls under the jurisdiction of Ostrołęka County in the Masovian Voivodeship.
The settlement serves as a rural locality within the region. While specific landmarks are not detailed in the primary records, it remains a recognized constituent of the local administrative landscape of the Masovian Voivodeship.