The latest county data – which has been rising on the sixth since Tuesday – was published by Public Health England on Wednesday evening.
Another 28 people – aged between 47 and 93 – also died nationally after testing positive for coronavirus in England, NHS England said, bringing the total deaths in the UK to 465.
The death figures for March 25 are an increase of 43 compared to the total for March 24.
None of the latest deaths occurred in the Northumberland area.
According to the data of March 25, the complete list of confirmed cases in the North East reads as follows:
10 – Redcar and Cleveland