All electoral areas of Monaghan have Covid rates higher than the national rate, while all of Cavan is below.
The latest local breakdown shows the Northern Sound region recorded 555 cases between July 20th and August 2nd.
The Monaghan LEA has seen the highest number of cases locally over that period, recording 142 cases.
Elsewhere in Monaghan, the Carrickmacross-Castleblayney area saw 59 cases and the Ballybay-Clones area saw 76.
All three areas in Monaghan have Covid rates above the national rate per 100,000 people, with the north of the county being almost twice the national rate.
In Cavan, the Balllyjamesduff area has the highest rate - it saw 94 cases over the two week period.
The Bailiborough-Cootehill LEA has the second highest rate with 82 cases, followed by Cavan-Belturbet seeing 72.
All three Cavan areas have below average rates.
Nationally, one in every 47 people in one area of Donegal tested positive for Covid-19 in the space of two weeks.
Carndonagh local electoral area continues to have the highest rate in the country.
On Monday, the country's 14-day incidence rate was 373 cases per 100,000 people.
But Carndonagh's was almost six times as high, at 2,110 - but that's down from 2,800 last week.
However, it remains by far the highest in the country.
The next hardest hit area is Buncrana LEA, also in Donegal, at 1,297.
The area with the third highest rate is Westport in Co Mayo, at 1,230 - followed by Galway City Central, at 1,064.
The fifth highest is Dundalk-Carlingford in Co Louth, at 805.
Internationally, Ireland has the sixth highest incidence rate in the EU, with Cyprus by far the worst, at 1,242.