Latest data from Public Health England, published by Northumberland County Council, reveals there were 413 confirmed positive cases in the week to June 14.
The infection rate is 129.0 per 100,000 population for the same period.
Here are the 17 areas of the county with the lowest rates.
The rate in Humshaugh ward is 23.0 per 100,000.
6. Berwick West with Ord
The rate is 24.0 in Berwick West with Ord.
The rate is 25.7 in Bellingham ward.
8. Cramlington Eastfield
The rate is Cramlington Eastfield is 38.2.