Ten people were arrested in the city during the celebrations on New Year's Eve.
Police confirmed officers had made the arrests in Norwich for offences including assault, drunk and disorderly as people saw in the new year.
Superintendent Terry Lordan from Norfolk Constabulary said his team had "planned for months" to keep people safe.
He said: "Large numbers of people were out in Norfolk for the New Year’s Eve celebrations.
"It’s traditionally one of our busiest nights of the year and the policing operation is planned months in advance to make sure there are sufficient resources in place to keep people safe.
"Overall, the majority of people were in good spirits and brought in 2023 safely."
Police confirmed six people were also arrested in King’s Lynn and four in Great Yarmouth for similar offences - taking the tally to 20 across Norfolk.
It came after warnings from the superintendent and a nursing chief about being careful if enjoying the celebrations.
Tricia D’Orsi, director of nursing for NHS Norfolk and Waveney said the NHS needs the public's help "now more than ever".
The East of England Ambulance Service confirmed a second critical incident status at the end of last month amid a high volume of 999 calls and hospital handover delays.
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