BEYONDBLUE'S big blue bus will cross the Nullarbor over the Easter break, arriving in Albany ahead of Anzac Day commemorations before embarking on a two-month tour of the west.
Beyondblue chief executive Kate Carnell said the National Roadshow was a grassroots campaign to tackle anxiety and depression and would visit dozens of communities throughout WA.
"We are two months into our 16-month, 22,000 kilometre journey across Australia and we are incredibly excited about our visit to WA," she said.
"From coastal communities to remote mining sites, we'll be driving from town to town promoting good mental health and the importance of seeking support for common mental health conditions like depression and anxiety."
Roy Morgan data shows more than one in five Australians reported experiencing depression, anxiety or both in the past year.
However, more than half of people with a mental illness in Australia will still not seek treatment.
Compared to other states, WA actually has the lowest rate of self-reported depression or anxiety.
In 2013, 17.3 per cent of Western Australians aged 14 and over said they experienced depression or anxiety.
In comparison, Queenslanders reported the highest rate at 23.7 per cent.
Ms Carnell said there was still a lot of work to be done in educating people about mental health and breaking down stigma.
"We know depression and anxiety don't discriminate. We know these conditions are hugely under-reported," she said.
"And we know there are certain populations at higher risk including fly-in, fly-out workers who spend long periods away from family and friends, working long hours."
To find out more about the National Roadshow, go to www.beyondblue.org.au/take1step.