New Zealand's statistical authority, StatNZ, uses two major administrative divisions: regional councils and territorial authorities.  It also variously reports aggregates of "island" (north and south), "rest of island," and "other excluding" (which omits the major urban areas of Auckland, Canterbury and Wellington).

StatNZ lists 17 "regional council" areas whereas Statoids (unofficial) classes them as 12 regional councils, four unitary authorities (which combine the functions of a regional council and territorial authority), and one special territorial authority.

Moody's Analytics has opted to use the Statoids definition.

References:

• Official:
  • StatNZ: Geographic Hierarchy
  • StatNZ: Map of South Island regional councils and territorial authorities (attached)
  • StatNZ: Map of North Island regional councils and territorial authorities (attached)
• Unofficial supplements:
  • Statoids: Regions of New Zealand
  • NZ Communities Development Trust: Interactive map
• Our usage:
  • Moody's Analytics: Metropolitan areas for New Zealand
  • Moody's Analytics: Historical data for New Zealand
  • Moody's Analytics: Estimated data for New Zealand

Table 1. Geographic types for New Zealand and Data Buffet geo codes. For example, all 12 regional councils are identified with INZL_(letter)(letter)(letter)(letter). The geo wild card INZL_^^^^ cannot differentiate between regional councils and unitary authorities; please use a geo list instead.

Table 2. New Zealand geographic hierarchy and geo codes. The geography codes assigned by Moody's Analytics appear in red in the first column.

• 2011 North Island Regional Councils and Territorial Authorities.pdf
• 2011 South Island Regional Councils and Territorial Authorities.pdf