Castleknock, Co. Dublin City scores 66/100 for quality of life, #35 of the 108 Irish areas BuyerIQ ranks, and its fundamentals are rated “declining”. The median home sells for €538,750 (most €430,000–€747,250), it scores 48/100 for safety (79.6 recorded crimes per 1,000 residents), 3,716 people live here. It's strongest on transport & services and environment.
Updated August 2026 · Property Price Register + 20+ official sources, refreshed daily
Above average today — the fundamentals are slipping behind the rest of the country.
Ranked on quality of life alone — cost of living excluded, so the genuinely best areas rank top even though they cost more. Factor in price and Castleknock is #35 of 108 for value for money (most quality of life per euro).
3,716 people.
Castleknock, Co. Dublin City, scores 66/100 on BuyerIQ's Quality of Life composite (cost of living excluded) — #35 of the 108 areas we rank. It's strongest on transport & services and environment.
Castleknock scores 48/100 on safety, ~79.6 recorded crimes per 1,000 residents.
The median sale price in Castleknock over the last 24 months was €538,750, most between €430,000 and €747,250 (Property Price Register).
Castleknock is rated "Declining" — unemployment fell just 2 points — lagging the national fall, third-level education up only 4 points — behind the national rise.
About 2% of homes sold in Castleknock in the last 24 months were new builds (Property Price Register).
30 planning applications were lodged within Castleknock in the last 12 months, covering 1,963 residential units (181 on record) — measured per town, not just at county level.
Castleknock scores 60/100 for families and community.
Castleknock scores 63/100 for schools and education, with 2 schools in the area.
Castleknock is about 17 minutes by road from Dublin.
Sale prices from the Property Price Register (rolling 24 months). Quality of Life averages seven equal-weighted dimensions from 40+ metrics across 13 public datasets (CSO census + SAPS, Garda crime, SEAI, EPA, DES schools, GTFS). Population is CSO Census 2022; the “on the up” trajectory compares 2016→2022. Figures refresh daily · an area assessment, not advice on a specific property. Updated August 2026.