Area scores › Ireland › Dublin
Safety, air quality and noise in Stillorgan-Mount Merrion, Co. Dun Laoghaire/rathdown, Dublin
Area scores as of 2026-08-03. Scores are area-level medians; individual properties vary.
Safety — higher is safer
Stillorgan-Mount Merrion, Co. Dun Laoghaire/rathdown scores 91 out of 100 for safety, where higher is safer.
Measured figure: 207.4 recorded offences in five CSO groups per 10,000 residents.
Safety uses 207.4 recorded offences in five CSO groups per 10,000 residents for the whole DMR East Garda Division, from CSO CJQ06 recorded crime by Garda Division; population Census 2022 Small Areas, 2025, so every area inside that division carries the same figure.
Median across the 8 member areas; middle half 91 to 91.
Clean air — higher is cleaner
Stillorgan-Mount Merrion, Co. Dun Laoghaire/rathdown scores 71 out of 100 for clean air, where higher is cleaner.
Measured figure: 9.5 micrograms per cubic metre PM2.5 annual mean.
Clean air uses a median of 9.5 micrograms per cubic metre of PM2.5 across the 8 SAs in this locality, an annual mean modelled at 8 member-area centroids from SpotCheck's city air-quality model.
Median across the 8 member areas; middle half 63 to 76.
Quiet — higher is quieter
Stillorgan-Mount Merrion, Co. Dun Laoghaire/rathdown scores 23 out of 100 for quiet, where higher is quieter.
Measured figure: 70.8 decibels (modelled).
Quiet uses a median of 70.8 decibels of modelled outdoor sound across the 8 SAs in this locality, a day-evening-night level taken at 8 member-area centroids from SpotCheck's traffic, railway and aircraft noise models, where a lower reading means a quieter area.
Median across the 8 member areas; middle half 7 to 24.
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