The Sackwald is surrounded by the ridges of the Vorberge to the north, the southeastern foothills of the Hildesheim Forest to the north-northeast, the Sauberge to the northeast, the Harplage to the east-northeast, the Heber to the east, the Helleberg to the south and southwest, the Selter (on the other side of the Leine valley) to the southwest and the Sieben Berge to the northwest.