The City of Wanneroo is one of the fastest growing and largest local government authorities in Australia, and includes 32 kilometres of coastline, natural environments, agricultural and bush land. The City has 36 suburbs, across 685.1 square kilometres, stretching from Girrawheen in the south to Two Rocks in the north, and lies on the north-eastern urban corridor of the Perth metropolitan area, about 12km from the Perth CBD at its nearest point and 62km at its farthest point.

The City is bounded by the Shire of Gingin in the north, the Shire of Chittering and the City of Swan in the east, the cities of Stirling and Joondalup in the south, and the Indian Ocean to the west. The City is characterised by a diverse mix of urban, rural and industrial land uses, as well as a significant area of natural bushland and state forest, including Yanchep National Park, Neerabup National Park and Yellagonga Regional Park.
 

A natural wetland system runs through the City, dominated by the pristine Lake Joondalup that separates the City of Wanneroo from the City of Joondalup. Urban land is predominantly residential, with a number of commercial centres providing jobs and services, along with the established industrial centre of Wangara and the newly emerging Neerabup Industrial Area site.