Mieczki-Sucholaszczki  Mieczki-Sucholaszczki is a village in the administrative district of Gmina Stawiski, within Kolno County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately south-east of Stawiski, south-east of Kolno, and west of the regional capital Białystok. The village has a population of 131.