People who see mould larger than an A4 sheet of paper in their home in Taranaki districts, New Zealand
By territorial authority, 2023 Census, % of households where information available
The following information applies to all values in the table.
Census Year: 2023, Subject population: Households in occupied private dwellings, Total household income: Total, Unit: Percentage of total stated
Use this data with caution. This data was rated moderate quality by Stats NZ. Read the warnings and response rate metadata below before using.
Stats NZ gives data an overall rating based on sources and coverage, consistency, and data quality.
Why am I seeing this?
This data is from the Census. The past two censuses had relatively low response rates, particularly for some areas of New Zealand and groups of people.
Where information was missing or unreadable, Stats NZ attempted to use data from a range of places such as previous censuses or administrative data that is collected by other government agencies. If that isn't available, Stats NZ use statistical models to predict what the missing data would have been. This is called imputation.
Things to be aware of
The proportion of ‘Not stated’ has increased since the 2018 Census, particularly in areas impacted by severe weather events in 2023, such as Hawkes Bay, Gisborne, and Northland. This may result in the counts and proportion of dwellings with housing quality issues being under-represented in the data.
The high proportion of missing information means the data may not provide an accurate picture of housing quality for all groups of interest, particularly Māori and Pacific peoples households.
The timing of data collection can affect how people respond to questions on dampness and mould.
Mould: The information collected in this question is a self-evaluated assessment of whether the home has mould that is larger than an A4 sheet of paper (in total). Mould (mildew) may grow on the walls, ceiling, floor, doors, window frames, curtains or blinds.
Household income is derived by taking the sum of the median personal incomes (the representative value of the income band) of all members aged 15 and over.
Response rates and final data sources
For dampness and mould, the response rate from 2023 Census forms was 91.6%. There was no information for 8.4% of homes.
For household income, the response rate from 2018 Census forms only was 79.2%, 13.1% was obtained through a combination of admin data, imputation, and Census forms. There was no information for 7.7% of households.
Definitions
Dwelling: A dwelling is any building or structure that is used, or intended to be used, for human habitation. There can be more than one dwelling within a building. For example, each apartment in an apartment building is a dwelling.
Household: either one person who usually resides alone, or two or more people who usually reside together and share facilities in a private dwelling. Included are people who were absent on census night but usually live in a particular dwelling and are members of that household, as long as they were reported as being absent on the dwelling form or the household set-up form.
Data calculation/treatment
This data has been randomly rounded to protect confidentiality. Figure.NZ calculated percentages based on the 'Total stated' values for each variable. Individual percentages may not sum to 100% and values for the same data may vary in different tables.
Geographically the census includes the North Island, South Island, Stewart Island, and the Chatham Islands, plus largely uninhabited islands including the Kermadec Islands, Three Kings Islands, Mayor Island, Motiti Island, White Island, Moutohora Island, Bounty Islands, Snares Islands, Antipodes Islands, Auckland Islands, and Campbell Island.
From the dataset Census: Dwelling dampness, dwelling mould, and total household income for households in occupied private dwellings, 2018, and 2023 Censuses, this data was extracted:
The New Zealand Census of Population and Dwellings is the official count of how many people and dwellings there are in New Zealand. It provides a snapshot of our society at a point in time and helps to tell the story of its social and economic change. The 2023 Census, held on Tuesday 7 March, was the 35th New Zealand Census of Population and Dwellings. The first official census was run in 1851, and since 1877 there has been a census every five years, with only four exceptions.
Purpose of collection
Census information is used by government agencies, local authorities, businesses, community organisations, and the public for developing and implementing new policies, research, planning, and decision-making. It helps us make decisions about how to best use public funding, especially in areas of health, education, housing, and transport.
The census is also the primary source of information used for deciding the number of general and Māori electorates, along with data from the corresponding Māori Electoral Option.