Latest data from Northumberland County Council, published by Public Health England, reveals there were 1,159 positive cases in the county in the week to September 11.
The infection rate is 357.9 per 100,000 population – the highest since late July.
Here are the 16 areas of Northumberland with the highest rates.
There were 38 positive cases in Bamburgh ward in the week to September 11 and the infection rate is 835.3 positive cases per 100,000 population.
Photo: Jane Coltman
2. Bedlington West
There were 36 positive cases in Bedlington West where the rate is 805.2.
3. Cramlington West
There were 41 positive cases in Cramlington West where the rate is 728.5.
There were 26 positive cases in Blyth's Cowpen ward where the rate is 578.9.