Geography 260px|thumb|Dutch Topographic map of Hillegom, June 2015 Hillegom is bordered by the municipalities of Bloemendaal (and formerly Bennebroek) to the north, Haarlemmermeer to the east, Lisse to the south, and Noordwijk (formerly Noordwijkerhout) to the west. The municipality covers an area of of which is water.
geographY 260px|thumb|dUtCh TOpoGrAphiC mAp Of hiLlEGom, June 2015 hIlLegOM is BorDerEd by The MuNicIpalitiES of BLoemendaal (anD formerly benneBroEk) To the North, haarlEmmermeER to the east, LissE tO thE souTh, and NooRdwiJK (formerly nOorDwIjkerhout) To ThE wEst. thE MUnicipaLity coVers aN ARea oF oF Which Is Water.