About 6,571,800 residents have now been placed into lockdown.
Byron Bay and surrounding local government areas in northern NSW entered a seven-day lockdown from 6pm on Monday.
That came as the New England regional city of Tamworth joined the Hunter region and Armidale for its own seven-day lockdown after an infected young woman visited the area from Newcastle.
The woman left Newcastle before it was included in the Hunter region lockdown from Thursday evening.
In the 24 hours to 8pm on Sunday NSW recorded 283 local Covid-19 cases, 106 of which were in the community while infectious.
An unvaccinated northern Sydney woman in her 90s has also died, taking the death toll from the current outbreak to at least 29.
NSW Premier Gladys Berejiklian has set a goal of six million Covid-19 vaccinations by the end of August in order to consider easing lockdown settings. About 4.5 million jabs have been administered so far.
Despite saying last week that "Covid zero" remains the goal in NSW, the premier on Monday said lockdown restrictions could ease from August 29 depending on infections in the community and hitting the six million jab target.
However, pre-pandemic freedoms could not be countenanced until vaccination rates of 70 and 80 percent are reached.
Ms Berejiklian acknowledged this meant residents of Sydney and surrounds could be banned from interstate travel for the long term, given the tendency of other states to close borders.
"I'm sure if you asked the majority of people in this state whether (they) look forward to more freedoms than we have now, I think the answer would be yes," Ms Berejiklian told reporters.
Residents of Greater Sydney and surrounds can only visit regional NSW for essential activity, and cannot freely enter any other Australian state or territory.
Meanwhile, thousands of Year 12 students from eight council areas in western and southwestern Sydney will this week get their Pfizer jab.
NSW Health also vaccinated almost 2000 supermarket and food distribution workers with AstraZeneca on a day it dubbed "Super Sunday" at the vaccination hub at Olympic Park.
