Latest data from Public Health England, published by Northumberland County Council, reveals there were 371 positive cases confirmed in the county in the week to June 12.
The infection rate stands at 115.8 positive cases per 100,000 population for the same period.
Here are the 29 areas of Northumberland with the highest rates.
9. Kitty Brewster
The rate is 246.5 in Blyth's Kitty Brewster ward where there were 16 positive cases.
The rate is 207.3 in Plessey ward, Blyth, where there were eight positive cases.
The rate is 200.5 in Lynemouth ward where there were nine positive cases.
12. Hexham Central with Acomb
The rate is 199.6 in Hexham Central with Acomb ward where there were nine positive cases.