Perth South West
Housing loan quartiles
In the Perth South West, the 'medium highest group' was the largest quartile, comprising of 26% of households with mortgages in 2021.
Mortgage repayments in the Perth South West are directly related to house prices, length of occupancy and the level of equity of home owners. When viewed with Household Income data it may also indicate the level of housing stress in the community.
The quartile method is the most objective method of comparing change in the mortgage payment profile of a community over time.
A detailed explanation of how Housing Loan Repayment quartiles are calculated and interpreted is available in specific data notes.
Please note, interest rates at the 2021 Census were at a record low in Australia. The first interest rate rises by the Reserve Bank began an upward cycle from May 2022. Please use mortgage payment data with caution as data from the 2021 Census pre-dates all official rate rises in the current cycle.
Derived from the Census questions:
'How much does your household pay for this dwelling?' and 'Is this dwelling (owned outright, owned with a mortgage etc.)'
Households with a mortgage
| Housing loan quartiles | ||||||||
|---|---|---|---|---|---|---|---|---|
| Perth South West - Households (Enumerated) | 2021 | 2016 | Change | |||||
| Loan repayment quartile group | Number | % | Greater Perth % | Number | % | Greater Perth % | 2016 to 2021 | |
| Lowest group | 15,254 | 22.8 | 23.0 | 13,321 | 22.6 | 23.2 | +1,933 | 34001 |
| Medium lowest | 16,982 | 25.4 | 24.7 | 14,744 | 25.0 | 24.5 | +2,239 | 34002 |
| Medium highest | 17,433 | 26.1 | 25.8 | 15,575 | 26.4 | 25.9 | +1,859 | 34003 |
| Highest group | 17,155 | 25.7 | 26.5 | 15,301 | 26.0 | 26.5 | +1,855 | 34004 |
| Total households with stated mortgage repayments | 66,827 | 100.0 | 100.0 | 58,942 | 100.0 | 100.0 | +7,885 | |
Source: Australian Bureau of Statistics, Census of Population and Housing (opens a new window) 2016 and 2021. Compiled and presented by .id (opens a new window)(informed decisions).
(Enumerated data)
| Housing loan - Quartile group dollar ranges | ||||||
|---|---|---|---|---|---|---|
| Calculated from loan repayment data for [theQBMQuartile] | Monthly housing loan repayments by Census year | |||||
| Housing loan repayment ranges | 2021 | 2016 | 2011 | 2006 | 2001 | |
| Lowest group | $0 to $1,303 | $0 to $1,314 | $0 to $1,221 | $0 to $826 | $0 to $605 | |
| Medium lowest | $1,304 to $1,851 | $1,315 to $1,995 | $1,222 to $1,969 | $827 to $1,241 | $606 to $855 | |
| Medium highest | $1,852 to $2,501 | $1,996 to $2,685 | $1,970 to $2,786 | $1,242 to $1,791 | $856 to $1,161 | |
| Highest group | $2,502 and over | $2,686 and over | $2,787 and over | $1,792 and over | $1,162 and over | |
Compiled and presented in profile.id by .id (informed decisions).
Compiled and presented in profile.id by .id (informed decisions).
Dominant groups
Housing loan repayment quartiles allow us to compare relative repayment liabilities across time. Analysis of the distribution of households by housing loan repayment quartiles in the Perth South West compared to Greater Perth shows that there was a smaller proportion of households in the highest repayment quartile, and a similar proportion in the lowest repayment quartile.
Emerging groups
The total number of households with a mortgage in the Perth South West decreased by 58,942 between 2016 and 2021. The most significant change in the Perth South West during this period was in the medium lowest quartile which showed an increase of 2,239 households.