This paper examines the geographic patterns of ‘mis-located’ households in terms of a mismatch of income and rental payments in the private rental market in Australia, particularly among low-income renters whose housing costs often take up a larger proportion of their household income. It occurs as a result of two possible processes: first, an absolute shortage of low-cost rental stock; and second, the occupation of affordable housing by higher-income households which could afford to pay more for their housing but choose not to. While previous research has examined the effects of these two conditions upon housing affordability for low-income renters, the extent to which they are associated with growing socio-spatial polarization is under-st...