Helensville is a town in the North Island of New Zealand. It is sited 40 kilometres (25 mi) northwest of Auckland, close to the southern extremity of the Kaipara Harbour. State Highway 16 passes through the town, connecting it to Waimauku 16 kilometres (10 mi) to the south, and Kaukapakapa about 12 kilometres (7.5 mi) to the north-east. Parakai is two kilometres (1.2 mi) to the north-west. The Kaipara River runs through the town and into the Kaipara Harbour to the north.

Parakai is a town in the North Island of New Zealand, sited 43 kilometres northwest of Auckland, close to the southern extremity of the Kaipara Harbour. Helensville is about 3 km (1.9 mi) to the south-east, and Waioneke is 22 km (14 mi) to the north-west.