Latest data from Public Health England reveals there were 1,905 positive cases countywide in the week to March 13.
The infection rate is 588.3 positive cases per 100,000 population.
Here are the 13 areas of Northumberland with the highest rates.
9. Prudhoe South
There were 43 positive cases in Prudhoe South where the rate is 764. Photo: Google
10. Ponteland West
There were 31 positive cases in Ponteland West where the rate is 767. Photo: Google
11. Kitty Brewster
There were 49 positive cases in Blyth's Kitty Brewster ward where the rate is 755. Photo: Google
12. Wensleydale
There were 36 positive cases in Blyth's Wensleydale ward where the rate is 752. Photo: Google