University Hospitals Plymouth NHS Trust was caring for 30 coronavirus patients in hospital as of Wednesday, figures show.
NHS England data shows the number of people being treated in hospital for Covid-19 by 8am on September 7 was up from 24 on the same day the previous week.
There were 32 beds occupied by Covid-19 patients four weeks ago in University Hospitals Plymouth NHS Trust.
Across England there were 4,864 people in hospital with Covid as of September 7, with 117 of them in mechanical ventilation beds.
The number of Covid-19 patients hospitalised nationally has decreased by 43% in the last four weeks, while the number on mechanical ventilators has decreased by 46%.
The figures also show that 22 new Covid patients were admitted to hospital in University Hospitals Plymouth NHS Trust in the week to September 5. This was up from 18 in the previous seven days.