The new tally is an increase of 268 on the previous day, as NSW Health battles to contain several large transmission events.
Some 86,562 tests were recorded in the 24 hours to 8pm on Monday.
The double-dose vaccination rate of those 16 and older is 93.2 per cent, while 94.8 per cent of people have had their first jab.
There are 168 people are in hospital with the virus, 21 of them in intensive care.
Some 81.4 percent of children aged 12-15 have had one dose of a Covid-19 vaccine, while 77.7 per cent are fully jabbed.
Meanwhile, NSW Health says anyone who was at Newcastle's Finnegan's Hotel in Darby Street between 6.30pm on Friday and 2.30am on Saturday is advised to get tested and self-isolate for seven days.
"All household contacts of close contacts must also be tested and self-isolate until a negative result is received by everyone in the household," NSW Health said on Monday night.
"It is likely some of these cases have the Omicron variant of concern."
NSW Health is appealing for anyone who didn't check in using the QR code to also get tested and self-isolate.
The latest alert comes after cases linked to an outbreak that started at Newcastle's Argyle House nightclub on Wednesday spiked from 24 to 84 on Monday, with a number of the cases also likely to be the Omicron variant.
Nearly 700 people checked into the venue and Chief Health Officer Kerry Chant said it was "incredibly important" that anyone who was at the venue had a test, "given the high transmission at this venue".
From Wednesday, unvaccinated people in NSW will be free to mingle with everyone at pubs, cafes, gyms and shops as a swathe of restrictions are lifted.
Density limits will be scrapped at venues and masks will no longer be mandatory in shops but will be required on public transport and planes as well as for indoors front-of-house unvaccinated hospitality staff.
Check-ins will only be required in high-risk settings like hospitals, pubs, clubs and gyms and singing and dancing will be permitted indoors and outdoors for everyone.
Victoria
Meanwhile, Victoria has reported 1189 new Covid-19 infections and a further six deaths, as the number of people in hospital with the virus grows.
The state is now managing 11,051 active cases, the health department confirmed.
Hospitalisations with Covid-19 have reached the highest level in almost a month, growing by more than 40 patients in a day to 364 on Tuesday.
The last time numbers were of a similar level was on November 16, when 394 people were in hospital with the virus.
Of those in hospital, 80 patients are actively infected with the virus in intensive care and 44 on ventilators, an increase of four from Monday's figures.
The seven-day hospitalisation average is 327, a rise of 15 from Monday.
More than 92 percent of Victorians aged over 12 are fully vaccinated against Covid-19.
