Żerczyce is a village in the administrative district of Gmina Nurzec-Stacja, within Siemiatycze County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Belarus. It lies approximately 3 km north of Nurzec-Stacja, 17 km north-east of Siemiatycze, and 71 km south of the regional capital Białystok. According to the 1921 census, the village was inhabited by 271 people, among whom 19 were Roman Catholic, 248 Orthodox, and 4 Mosaic. At the same time, 27 inhabitants declared Polish nationality, 240 Belarusian and 4 Jewish. There were 51 residential buildings in the village.