It comes as Health Secretary Matt Hancock addressed the nation, explaining what life would look like across the country following the introduction of the new tier system on December 2.
At one point the case rate in South Norfolk had tripled week-on-week.
There were 1,100 cases in Norfolk in the week up to 21 November, down from 1,345 in the previous week.
Several areas in Sussex, including Brighton and Hove, are at the lower end of the list in Tier 2 with rates of less than 90 new weekly cases per 100,000 population.
England's coronavirus tiers were set out by the government as more areas face the toughest restrictions.
Up to six people can meet outdoors and pubs and restaurants must shut at 22:00 GMT.
Under the tier three rules, non-essential shops and gyms will be able to reopen and outdoor sports will be able to return from December 2.
London has seen an overall fall in infections and crucially among the over 60s, as well as one of the lowest hospital admission rates for Covid in England.
Hospitality venues, such as pubs, are also meant to close unless they are able to serve substantial meals with drinks.
The Rule of Six will return for tier one and two areas, meaning you will be able to meet both inside and outside households with people in your bubble. After a hugely disrupted Christmas run-in, all "retail, leisure and personal care services" can reopen.
Fifteen guests will be allowed at weddings and civil partnerships, increasing to 30 for funerals.
Classes and organised sport can take place outdoors but not indoors if there is any interaction between two different households.
Spectators will be allowed to attend some sporting events across England, and large outdoor events will be limited to 50% capacity.
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