2018 Census - Ethnicity, culture and identity
This topic covers data on a wide variety of variables in order to identify the ethnic and cultural makeup of the New Zealand population. Data collected in this area serves the purpose of identifying and tracking different outcomes, trends, and needs amongst the different demographic groupings within New Zealand when combined with other census data.
The current recommendations for this topic for the 2018 Census are:

Sexual orientation46 items
Gender identity173 items
Iwi affiliation24 items
Languages spoken10 items
Ethnicity57 items
Religious affiliation53 items
Citizenship/ residence status12 items
Birthplace3 items
Generational attachment8 items
Māori descent4 items