Janiszew is locate in the centre of Brudzew administrative district, near the Koźmin strip of Adamów Brown Coal Mine, on a small river called Struga Janiszewska. The village lies on local road from Brudzew to Koźmin, about 10 kilometers from Turek, and 2 kilometers from Brudzew. Janiszew consists of the so-called Parcele, Poduchowne, Ostrów, and Stara Wieś of which only a giant hole of the strip mine remains today. The village adjoins Brudzew, Krwony, Głowy and Koźmin and is located about 100-105 meters above sea level.