Is Co. Donegal a high radon county?

11 of the 51 town centres we sampled in Co. Donegal are in an EPA High Radon Area (1 in 5 homes or more predicted above 200 Bq/m³). Nationally it is 36% of towns. High towns include Bundoran, Donegal Town, Ballyshannon, Dungloe, Laghey, Derrybeg.

What does a High Radon Area mean for a buyer?

Houses built after 1998 in a High Radon Area must have a radon barrier. Older houses usually have none, and one in five will test above the reference level. It costs €50 to €60 to test after you move in and €1,500 to €3,000 to fix. Ask the seller for any test result.

Why does radon vary so much within a county?

Radon comes from uranium in the underlying rock. Granite and some limestones give high readings; the map follows the geology, so it changes over a few kilometres. The exact Eircode grid square is what matters.

Radon · Co. Donegal

Radon in Co. Donegal: 11 of 51 towns in a High Radon Area

The EPA map predicts the share of homes above the radon reference level for each grid square. Read at the centre of 51 towns in Co. Donegal, 11 fall in a High Radon Area (1 in 5 homes or more).

11/51

town centres in an EPA High Radon Area (1 in 5 or more)

in a moderate band (about 1 in 10)

36%

of Irish towns sampled are in a High Radon Area

Radon across Co. Donegal

The EPA map predicts, for each grid square, the share of homes above 200 Bq/m³. We read it at the centre of every town in Co. Donegal with at least 100 registered sales. 22% of those centres fall in a High Radon Area. Towns by predicted odds, highest first:

Bundoran	1 in 5
Donegal Town	1 in 5
Ballyshannon	1 in 5
Dungloe	1 in 5
Laghey	1 in 5
Derrybeg	1 in 5
Dunkineely	1 in 5
Creeslough	1 in 5
Malin	1 in 5
Annagry	1 in 5
Lettermacaward	1 in 5
Letterkenny	1 in 10
Buncrana	1 in 10
Lifford	1 in 10

Check one house in Co. Donegal

The area tells you the odds. The report tells you about the house.

Enter the Eircode. The free snapshot shows which of the twenty-nine checks flag up. The full report (€24.99, one house, no account) reads the EPA prediction for the exact Eircode square, checks the build year against the 1998 barrier rule, and puts radon beside the other twenty-eight checks.

Or read the sample report first: a real house, 16 pages.

Other checks for Co. Donegal

Co. Donegal is one of the five counties in the Defective Concrete Blocks grant scheme (mica). For any house built 1990 to 2015, the report checks the scheme designation and tells you what to ask the seller about block testing.

Radon by town in Co. Donegal

Questions people ask

Is Co. Donegal a high radon county?: 11 of the 51 town centres we sampled in Co. Donegal are in an EPA High Radon Area (1 in 5 homes or more predicted above 200 Bq/m³). Nationally it is 36% of towns. High towns include Bundoran, Donegal Town, Ballyshannon, Dungloe, Laghey, Derrybeg.
What does a High Radon Area mean for a buyer?: Houses built after 1998 in a High Radon Area must have a radon barrier. Older houses usually have none, and one in five will test above the reference level. It costs €50 to €60 to test after you move in and €1,500 to €3,000 to fix. Ask the seller for any test result.
Why does radon vary so much within a county?: Radon comes from uranium in the underlying rock. Granite and some limestones give high readings; the map follows the geology, so it changes over a few kilometres. The exact Eircode grid square is what matters.

Sources

Area figures, compiled from public records. They describe the town or county, not any one house. The paid report checks the exact Eircode.