Georgiana Molloy Anglican School is the first school in Busselton to close due to the COVID-19 pandemic.
In a letter addressed to parents, principal Ted Kosicki said the school would remain open for core staff and parents who need to send their children to school.
GMAS will move to online learning commencing from next Monday.
WA schools remain open based on advice from the Health Department.
As of Monday March 23, 2020, 9,948 people have tested negative to COVID-19 in WA, there are 140 confirmed cases, six people have recovered from the illness and there has been one death.
Two cases are people who have been infected through community contact and another two cases have been confirmed in the South West.
The Australian Government has implemented a number of restrictions which includes social distancing.
People have been instructed to keep at least 1.5 metres away from others to reduce the risk of spreading coronavirus through community contact.
Yesterday pubs, clubs, gyms, churches, cinemas and entertainment venues throughout Australia were told to close leaving a large number of people jobless.
Restrictions are currently in place for non-essential gatherings of more than 500 people outside or more than 100 people inside, and entering aged care homes.
All non-essential indoor gatherings of less than 100 people must have no more than one person per four square metres.