The NZ Localities: City Alias table is part of the [Fire and Emergency NZ Localities dataset](https://data.linz.govt.nz/layer/104830).
The City Alias table includes alternative/alias/adjacent polygons (cities) names for cities.
The Fire and Emergency NZ Localities dataset is used by Fire and Emergency New Zealand for locating and responding to emergencies within New Zealand. Coverage includes the New Zealand mainland, Stewart Island/Rakiura and offshore islands, as well as lakes and inland islands.
It is maintained by Fire and Emergency New Zealand and has been made available via the LINZ Data Service as part of LINZ’s key datasets for resilience and climate change programme.
For detailed metadata about this dataset, see the [Fire and Emergency NZ Localities Data Dictionary](https://data.linz.govt.nz/document/22739).
Localities are built mainly using LINZ cadastral data that is no more than three months old. The exception to this is where a territorial authority has gazetted their suburb boundaries which we use even though they may not follow cadastral boundaries. Coastlines are a mixture of cadastral data and topographical data - which is used where it has been found that relevant detail falls outside the cadastral "coastline".