The 14-day incidence rate of Covid-19 in an area in Donegal is over six times the national average.
The county continues to have the highest rate in the Republic.
In this region, the Claremorris LEA has the third highest rate of infection in the country.
In the two-week period that ended on Monday, the country's 14-day incidence rate for coronavirus was 80.2 per 100,000 people.
But in the Carndonagh local electoral area in Co Donegal, it was nearly 519.
Donegal also had the LEA with the country's second highest incidence rate - that was Letterkenny, at 322, which is four times the national average.
Three other areas in the county also had incidence rates of at least double the national average - Lifford-Stranorlar, Milford and Buncrana.
Elsewhere in the border, some LEAs in Monaghan and Louth also had high incidence rates.
Meanwhile, the Claremorris local electoral area in Co Mayo had a rate of 258 during the two-week period - the third highest in the country.
