The welfare agency Anglicare says housing affordability in WA has hit crisis point.
The organisation examined more than 4,000 listings across the state as part of its annual rental affordability snapshot report.
It found the median rental price in Perth has jumped from last year's average of $450 per week to $520.
The report showed less than one per cent of Perth's rental market is affordable for people on pensions or benefits and only five per cent is in reach for those on the minimum wage.
Nationally, Anglicare looked at more than 56,000 rental properties advertised over the April 13/14 weekend this year.
Executive director Kasey Chambers says they found only one per cent of those properties would cost less than 30 per cent of the person or family's weekly income.
"Really not a pretty picture if you're out there trying to find somewhere to live," she said.
Mining areas in Western Australia and Central Queensland were the least affordable, though Anglicare says it is dire across Australia.
Its WA CEO Ian Carter says there is not enough public housing.
"There is so little available and with the levels of public housing in WA still being at very low levels of around four to four and a half per cent of total housing stock, there are not many opportunities out there for people to be living on an affordable basis," he said.
"Housing is critical and everyone needs to be making this a priority right now.
"For Western Australia it is clear we are at crisis point, the amount of housing stock available for people on low and fixed incomes is deteriorating rapidly."
In a statement, the Housing Minister Bill Marmion said the government is on track to deliver 20,000 new affordable homes by 2020.
He said the government believes in the long term it is better to help people get into their own home.
The statement said they are doing this through a mix of shared equity, low interest loans and the release of lower cost houses and apartments.