According to the latest government figures, Lincolnshire’s case numbers increased from 916 to 977 - a rise of 61.
It is the highest jump since April 22 when case numbers rose by 76.
North East Lincolnshire cases increased from 426 to 431, while North East Lincolnshire reported a total of 143 (up from 140).
The latest figures bring the local total to 1,551 – an increase of 99 cases.
Nationally the government has reported 226,463 cases.
A total of 32,692 people who have been diagnosed with COVID-19 have died across the country in total.