structural:expansion
Scope

The boundaries of Auckland are imprecisely defined. The Auckland urban area, as it is defined by Statistics New Zealand under the Statistical Standard for Geographic Areas 2018 (SSGA18), spans 607.07 square kilometres (234.39 sq mi) and extends to Long Bay in the north, Swanson in the north-west, and Runciman in the south. Auckland's functional urban area (commuting zone) extends from just south of Warkworth in the north to Meremere in the south, incorporating the Hibiscus Coast in the northeast, Helensville, Parakai, Muriwai, Waimauku, Kumeū - Huapai, and Riverhead in the northwest, Beachlands-Pine Harbour and Maraetai in the east, and Pukekohe, Clarks Beach, Patumāhoe, Waiuku, Tuakau and Pōkeno (the latter two in the Waikato region) in the south. Auckland forms New Zealand's largest urban area.

The Auckland urban area lies within the Auckland Region, an administrative region that takes its name from the city. The region encompasses the city centre, as well as suburbs, surrounding towns, nearshore islands, and rural areas north and south of the urban area.

The Auckland central business district is the most built-up area of the region. The CBD covers 433 hectares (1,070 acres) in a triangular area, and is bounded by the Auckland waterfront on the Waitematā Harbour and the inner-city suburbs of Ponsonby, Newton and Parnell.