The COVID-19 incidence rate in Donegal has now passed 300 per 100,000 population.
Figures from the HPSC show the 14-day incidence rate in the county stands at 312.2 - the highest in the country.
Nine other counties currently have incidence rates of 100 or more: Cavan, Clare, Cork, Dublin, Limerick, Longford, Monaghan, Offaly and Roscommon.
Monaghan has the second highest incidence rate at 257.4 per 100,000, followed by Dublin (171.4) and Roscommon (170.4).
The national incidence rate has reached 124.43.
Meanwhile, the number of COVID-19 patients in Irish hospitals has continued to gradually increase.
There were 17 admissions in the past 24 hours, bringing the total number of confirmed cases in hospitals to 159.
Today's figure compares to just 49 confirmed coronavirus cases in hospital a month ago.
The number of COVID-19 patients in intensive care has remained relatively stable in recent days, with the latest figure showing 25 patients in Ireland's ICUs.