Radon Test & Risk Check: Co. Monaghan
18 official risk checks for any property in Co. Monaghan. Built on official Irish government data.
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Official data sourced from Irish government agencies
Radon Risk in Co. Monaghan, Ulster
In EPA measurements to end-2019, 5.4% of homes tested in Monaghan were at or above the Reference Level of 200 Bq/m³ — below the national share of 14.1% of homes tested. Because testing was promoted hardest in known high-radon areas, these are shares of homes tested, not of all homes in Monaghan. Radon is Ireland's leading cause of lung cancer after smoking, making a radon check essential for any property buyer in Monaghan. PropertyPack includes EPA radon zone data and risk classification for any Eircode in Monaghan, Carrickmacross, Castleblayney and surrounding areas.
location_onCo. Monaghan at a Glance
- Population
- 65,000
- Province
- Ulster
- Coastline
- Inland county
- Character
- Predominantly Rural
- Main Rivers
- Blackwater, Fane
- Median Price (2026)
- €242,500 (+1% YoY)
- Radon (of homes tested)
- 5.4% at/above 200 Bq/m³
- Recorded Flood Events
- 163
- Mica/Pyrite (DCB Scheme)
- Not designated
Sources: Property Price Register (sales to 2026); EPA radon measurements to 2019 (self-selected sample — % of homes tested, not prevalence); past flood events derived from OPW floodinfo.ie data; DCB scheme designations via gov.ie.
Radon Levels Measured in Co. Monaghan
The EPA measured radon in 372 Co. Monaghan homes up to the end of 2019. 20 of them — 5.4% of homes tested — came in at or above the 200 Bq/m³ Reference Level. Radon is linked to around 350 lung cancer cases in Ireland every year, and the only way to know a home's level is to test it.
Homes Tested by the EPA
372
At or Above Reference Level
5.4%of homes tested
Highest Reading in Co. Monaghan
800Bq/m³ — 4× the Reference Level
Measured Homes by Radon Band
- Below 200 Bq/m³ (below the Reference Level)352
- 200–799 Bq/m³ (above the Reference Level)20
- 800+ Bq/m³ (4× the Reference Level or more)0
Source: Radon results by county — EPA measurements to 31 Dec 2019 (EPA (Environmental Protection Agency)). Homes that tested are a self-selected sample — testing was promoted hardest in high-radon areas — so these percentages overstate county-wide prevalence. Nationally, the EPA's 2022 radon risk map predicts 170,000 Irish homes above the Reference Level, and a High Radon Area is anywhere more than 1 home in 10 is predicted to exceed it.
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Official Risk Checks
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Counties Covered
What We Check for Every Monaghan Property
Every PropertyPack report runs 18 checks. Here are 12 of the key risk categories, all aggregated from official Irish government data.
Plus more checks across insurance, neighbourhood, transport and more.
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Radon Risk in Monaghan: FAQs
A PropertyPack report for any Monaghan address covers 18 risk categories: flood risk (OPW data), radon levels (EPA data), BER ratings (SEAI), property prices (Property Price Register), crime statistics (CSO), school catchment, broadband speeds, planning applications, air quality, noise levels, and more. Each check runs for the Eircode you enter, with the data's confidence level labelled where a source is only published at county or division level.
The full 18-check PDF report for any Monaghan address costs €29. House-hunting across several properties? A 3-report bundle is €59 and a 5-report bundle is €79. You see a free snapshot first — no card needed.
In EPA measurements to end-2019, 5.4% of homes tested in Monaghan were at or above the Reference Level of 200 Bq/m³ — below the national share of 14.1% of homes tested. Homes in known high-radon areas were more likely to test, so this is a share of homes tested, not of all homes. Radon is Ireland's second biggest cause of lung cancer, and the EPA recommends testing any home regardless of area.
PropertyPack includes EPA radon zone classification for any Eircode in Monaghan. For definitive measurement, a physical radon test using detectors placed in the property for 3+ months is recommended. PropertyPack data tells you whether your area is classified as high-risk before you invest in testing.
Risk levels vary across Monaghan depending on which factor you're considering. Properties away from Blackwater and Fane flood plains have lower flood risk. For radon, 5.4% of homes tested in Monaghan measured over the Reference Level — the EPA's map shows which areas are classified as High Radon Areas. Well-established residential areas in Monaghan, Carrickmacross, Castleblayney tend to have better broadband, lower crime, and closer school access. PropertyPack helps you compare specific locations within Monaghan across 18 risk categories.
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