The highest number of cases are largely in the west with isolated hotspots elsewhere.
Latest data from Public Health England, published by Northumberland County Council, up to December 27 reveals the county-wide infection rate is 184.2 positive cases per 100,000.
This compared to 191.7 per 100,000 on December 22.
There have been 590 positive cases recorded in Northumberland over the past seven days.
Northumberland is currently in the Tier 3 ‘very high alert’ level of restrictions.
Here are the 18 wards in Northumberland with the highest case numbers.
1. Haltwhistle
There have been 31 positive cases recorded in Haltwhistle ward over the past seven days. The rate is 643 per 100,000.
Photo: Google
2. Humshaugh
There were 26 positive cases in Humshaugh ward. The rate is 598.1.
Photo: Google
3. Hexham East
There were 24 positive cases in Hexham East. The rate is 524.4.
Photo: Google
4. Haydon and Hadrian
There were 23 positive cases in Haydon and Hadrian ward. The rate is 524.9.
Photo: Google