The new cases included a new case in the South West region and additional cases linked to aged care facility outbreaks.
There are now 509 active cases in Western Australia, but there are no patients in hospital.
The Government has been called into question over its low testing rates, with just 4351 people receiving a PCR test on Sunday.
Opposition leader David Honey told the ABC, “It is fair to say, the Premier has lost the trust of the people of Western Australia when he broke his contract with them on February 5 in terms of opening up the state.’’
“Western Australians went out they go their first jab, they got their second jab, they‘re overwhelmingly getting their booster jab, they’ve isolated, they’ve done all the things the Premier has required.
“And he’s bailed, and I think people are just fed up with the Premier making promises and not sticking with them.”
Western Australia has now reached 50% triple boosted and is expected to hit 80 per cent on March 5.