CSO figures show 3,233 homes have achieved the top energy rating.
Just 6%of homes in the midlands have a BER rating of A.
Figures from the CSO show, of the 49,300 houses in the region, only 3,233 have achieved the top energy rating.
In Laois, 8% of homes have an A rating, for a total of 1,303.
That figure is 7% in Offaly - the number of homes with the highest BER score is 981.
Westmeath holds the lowest number of A rated homes in the midlands - 949 have achieved that score, which is 5% of the total number of houses in the county.
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