Residents of a country Queensland town fighting to keep a Sri Lankan family in Australia are worried the family could be deported as early as next week after losing an appeal.

Tamils Priya and Nadesalingam and their two Australian-born children lost a bid to stop their deportation at the Federal Circuit Court on Thursday, but the family has 21 days to appeal the ruling.

Family friend and Biloela resident Angela Fredericks said the family were issued deportation notices on Friday afternoon, less than two days into the appeal period.