More than half of the 195 active cases in the Western NSW Local Health District are located in the Dubbo Regional Council area.

Western NSW LHD chief executive Scott McLachlan said there had also been a decrease in the number of patients in hospitals across the region.

"We now have 34 patients in hospitals," he said.

"One of them is pretty crook in intensive care and is being ventilated."

Dubbo city has also seen a jump in COVID-19 cases, with the highest number in a week reported on Friday morning.

In the 24 hours to 8 pm Thursday, the Western NSW LHD recorded 14 new COVID-19 cases, four in Dubbo, one in Wellington, three in Bourke, three in Oberon, two in Walgett and one in Orange.

Of the 14 cases, 13 are known to have not been infectious in the community and seven are known links to confirmed cases. One of the two Walgett cases remains under investigation.

Gulargambone residents are now also being urged to get tested after virus fragments were detected in sewage samples which were taken on Wednesday.

Mr McLachlan said it was good news to see testing numbers jump across the region.

"Pleasingly, we saw an increase in testing [on Thursday] to around 3,600 tests," he said.

"Thank you to everyone who came to get tested in the last 24 hours, it is one of the most crucial things in the coming weeks. [There's a] particular focus on Walgett, Orange, Wellington and Bourke. If you have any symptoms in those communities, please, get tested.

"Surveillance testing is available across the whole of the region where you don't need to isolate if you don't have any signs or symptoms and haven't been in a household with someone with symptoms. We're [at] a crucial period in our fight against COVID-19.

"We all need to be doing our bit to help. With restrictions easing, common sense and awareness become important in stopping the spread of the virus."

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