New South Wales Premier Gladys Berejiklian has announced that residents in the state's regional communities will be in lockdown until "at least" August 28.
This brings the regions into line with the current COVID-19 lockdown timeline for Greater Sydney and surrounds.
The extension of the lockdown for the state of NSW comes amid rising cases in towns such as Dubbo and Wilcannia.
LIVE UPDATES: NSW records 681 new cases, one death
The premier said cases in Western NSW remained a high concern.
"In Western New South Wales, we remain concerned with the cases bubbling along, especially around Wilcannia, Dubbo … Things are settling down in other parts of regional New South Wales, which is positive, but concerns remain for western New South Wales," Ms Berejiklian said.
NSW recorded 681 new cases of COVID-19 today, with at least 59 of those infectious in the community.
The state also recorded one new death of a man in his 80s who died at St George Hospital.
NSW Health recorded 25 new cases of COVID-19 reported to 8pm last night in the state's west, bringing the Local Health District's total to 167.
NSW Deputy Premier John Barilaro said the cases, as well as new infections in Goulburn, South Kempsey and Queanbeyan, drove the decision to extend regional NSW's lockdown to August 28.
"Clearly that there are concerns still in regional NSW," Mr Barilaro said.
He also said positive sewage detections in areas with no known cases announced over the past week were also concerning.
An additional three cases were also detected in Wilcannia, in the Far West, as health authorities expressed concern a funeral attended by more than 100 people before lockdown rules were in place could have seeded many cases. There were five new cases in the Newcastle area.
"It is right to stay in front of the curve, in front of the spread, and keep regional rural New South Wales and lockdown," Mr Barilaro said.
"My message is to state vigilant, get tested if you have symptoms."
The state also broke a new record 110,000 COVID-19 vaccinations yesterday