Gmina Trzcianne is a rural gmina (administrative district) in Mońki County, Podlaskie Voivodeship, in north-eastern Poland. Its seat is the village of Trzcianne, which lies approximately 11 kilometres (7 mi) south-west of Mońki and 41 km (25 mi) north-west of the regional capital Białystok.
The gmina covers an area of 331.64 square kilometres (128.0 sq mi), and as of 2006 its total population is 4,701.
Population. Size and Structure by Territorial Division. As of June 30, 2019.[1] Główny Urząd Statystyczny (GUS) (PDF files; 0.99 MiB), accessed on December 24, 2019