Town comparison · Castleknock vs Dalkey

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Castleknock or Dalkey?

Both towns measured at town level, not the wider Eircode area, on the same 52 figures: prices, schools, amenities, social life, commute, affluence and safety.

Castleknock, Co. Dublin City · D15 · 3,716 people | Dalkey, Co. Dublin City · A96 · 2,895 people

Castleknock is the stronger town on the data. It leads on 4 of the 7 dimensions to Dalkey’s 2, with 1 level.

Castleknock leads on
schools & amenitiespublic transportaffordabilityaccess to its nearest city
Dalkey leads on
education levelssafety
251611

Castleknock aheadlevel or not comparableDalkey ahead

AffluenceEducationAmenitiesTransportSafetyAffordabilityCity access
CastleknockDalkey
iCastleknock sits in D15, Dalkey in A96. Each figure below is tagged with the geographic level it’s actually measured at. The town ahead on a row is the one in green. Scores and percentages are charted against a true 0 to 100 scale; every other row is charted against the larger of the two towns, so the bars compare but don’t imply a ceiling.
!Castleknock & Dalkey are city suburbs — its boundary follows the postal area (the Small Areas whose addresses carry the name), not an official settlement line, so it can run broader than the local core and the figures cover that wider postal patch.

Outlines are each town’s CSO Small Areas — the exact footprint every figure is measured over.

Castleknock
Dalkey

Size

TOWN · census

Resident population at the 2022 CSO census, summed over the Small Areas that make up each town. Not scored: a bigger town isn’t a better one, it just explains why the counts below differ.

3,716
Population
2,895

Prices & market

TOWN · exact
€540k
Median sale pricelower is better
€1000k
Castleknock leads
€433k – €744k
Typical range (P25–P75)
€738k – €1348k
631
Sales (24m)
238
+1.5%
Price momentum (YoY)
N/A
17.7%
New-build share
21.4%

Schools, health & amenities

TOWN · counts

Facilities in and around each town — each counted once, for the town it’s closest to. Bigger towns naturally score higher — read alongside population.

7 prim · 3 sec
Schools
4 prim · 1 sec
Castleknock leads
Castleknock · 10 schools (largest first)
Castleknock Community College Secondary
1,290 pupils · 75% to 3rd-level · MULTI DENOMINATIONAL
Luttrellstown Community College Secondary
998 pupils · 75% to 3rd-level · MULTI DENOMINATIONAL
Edmund Rice College Secondary
813 pupils · 75% to 3rd-level · CATHOLIC
St Patricks Ns Primary
891 pupils · Catholic
St Brigids Mxd N S Primary
878 pupils · Catholic
Scoil Thomais Primary
640 pupils · Catholic
Castleknock Educate Together Ns Primary
409 pupils · Multi Denominational
St Francis Xavier J N S Primary
388 pupils · Catholic
St Francis Xavier Senior N S Primary
376 pupils · Catholic
Scoil Naisunta Chnuacha Primary
199 pupils · Church Of Ireland
Dalkey · 5 schools (largest first)
Loreto Abbey Secondary School Secondary
742 pupils · 90% to 3rd-level · CATHOLICFee-paying
Loreto National School Primary
309 pupils · Catholic
S N Gleann Na Gcaorach Iníon Léinín Primary
215 pupils · Church Of Ireland
Harold Boys N S Primary
113 pupils · Catholic
Dalkey N S (2) Primary
101 pupils · Church Of Ireland
20
Creches
5
Castleknock leads
3
GP practices
N/A
8
Pharmacies
4
Castleknock leads
0
Hospitals
0
42
Bus stops
22
Castleknock leads
1
Rail / Luas stops
1
5
Gyms & leisure
2
Castleknock leads
6
Parks & playgrounds
5
Castleknock leads
66
Sports pitches
14
Castleknock leads

Social life

TOWN · counts

Places to eat, drink and go out in and around each town — each counted once, for the town it’s closest to. The residents per venue row is the fairer read — raw counts just track town size, so a big town wins by being big.

8
Restaurants
13
Dalkey leads
5
Cafés
7
Dalkey leads
10
Pubs & bars
6
Castleknock leads
9
Takeaways
3
Castleknock leads
0
Nightclubs
0
0
Cinema & theatre
0
116
Residents per venuelower is better
100
Dalkey leads

Day-to-day

TOWN · counts

The errands you run without thinking about them. Same caveat — read the residents-per-service row alongside the counts.

4
Supermarkets
2
Castleknock leads
4
Convenience shops
1
Castleknock leads
1
Bakery, butcher & greengrocer
2
Dalkey leads
0
Banks
2
Dalkey leads
2
Post offices
0
Castleknock leads
3
Hairdressers
2
Castleknock leads
4
Dentists
3
Castleknock leads
1
Vets
0
Castleknock leads
1
Filling stations
1
5
EV charging
2
Castleknock leads
2
Library & community centre
3
Dalkey leads
138
Residents per shop or servicelower is better
161
Castleknock leads

Commute by car

TOWN · from centre

Drive time from the town centre to each city centre — typical off-peak, with an estimated weekday rush hour. OSRM road routing.

17m · ~35 rush
Dublinlower is better
25m · ~50 rush
Castleknock leads
118m · ~130 rush
Waterfordlower is better
125m · ~140 rush
Castleknock leads
139m · ~155 rush
Limericklower is better
150m · ~170 rush
Castleknock leads
144m · ~170 rush
Galwaylower is better
161m · ~185 rush
Castleknock leads
178m · ~200 rush
Corklower is better
189m · ~210 rush
Castleknock leads

Affluence & profile

ELECTORAL DIVISION
6.8
Affluence (Pobal HP)
6.4
Castleknock leads
Castleknock · 8 EDs, poorest → richest
-7Blanchardstown-coolmineBelow average
-6Blanchardstown-coolmineBelow average
0Blanchardstown-delwoodBelow average
+0Blanchardstown-delwoodAbove average
+8Castleknock-knockmaroonAffluent
+9Castleknock-knockmaroonAffluent
+9Castleknock-parkAffluent
+10Castleknock-parkAffluent
Dalkey · 11 EDs, poorest → richest
+3Dalkey-coliemoreAbove average
+5Dun Laoghaire-glasthuleAffluent
+5Dalkey-coliemoreAffluent
+5Dun Laoghaire-glasthuleAffluent
+5Dalkey HillAffluent
+6Dalkey-bullockAffluent
+6Dalkey HillAffluent
+7Dalkey-bullockAffluent
+10Mansion House BAffluent
+10Dalkey UpperAffluent
+17Mansion House BVery affluent
60.1%
Third-level educated
65.4%
Dalkey leads
56.0%
Professional class
59.6%
Dalkey leads
7.1%
Unemploymentlower is better
6.2%
Dalkey leads
71.7%
Owner-occupier
69.5%
Castleknock leads
24.4%
Private rental
22.8%
3.1%
Social housing (LA)
5.6%

Liveability & safety

AREA · D15 / A96

Wider-area figures, not the town. Quality of life & rank are for the whole Eircode area each town sits in (CastleknockD15, DalkeyA96); safety & crime are the DMR West Garda division.

66/100
Quality of Life
66/100

Quality of Life is the equal-weighted average of these seven 0–100 dimensions, scored for the whole Eircode routing area (D15 / A96) from official data — Garda crime, CSO income & census, OPW flood, EPA water, and transport/healthcare/broadband coverage. Refreshed quarterly. The dashed line is each town’s overall score (that average) — dimensions to its right beat the average, to its left fall short. Two towns can share a score with a very different mix.

CastleknockDalkeyOverall (avg)
Safety66486671
Affordability6610
Infrastructure10088
Family6062
Education6378
Environment6980
Economic5373
020406080100020406080100
#35
National rank
#35
#10
County rank
#10
48/100
Safety
71/100
Dalkey leads
79.6
Crime / 1,000lower is better
41.6
Dalkey leads

Affluence range

Pobal HP deprivation index, published per Electoral Division, so the spread shows the town’s poorest to richest ED. A town that is a single ED shows one mark, no range.

Castleknock Affluent+6.8
← more deprivednational avg · 0more affluent →
Spread across the town: Blanchardstown-coolmine -7 (least affluent) → Castleknock-park +10 (most affluent). It straddles the national average.
Dalkey Affluent+6.4
← more deprivednational avg · 0more affluent →
Spread across the town: Dalkey-coliemore +3 (least affluent) → Mansion House B +17 (most affluent). Even its least-affluent neighbourhood is above the national average.

How accurate is this, and at what level?

TOWN
Prices, amenities and commute are exact and town-specific.

Prices come from individual PPR sales inside the town’s Small-Area boundary; schools, GPs, transport, gyms and parks are counted the same way; commute is routed from the town centre.

ED
Affluence, profile and tenure are Electoral-Division level.

Published per Electoral Division and averaged across the town’s EDs, with a range where the town spans several.

AREA
Liveability and safety are wider-area, not the town.

Quality of life and rank are per Eircode routing key; safety and crime are the Garda division (DMR West), coarser than a town, so two towns in the same county read the same.

Population growth isn’t shown: the 2016 and 2022 censuses don’t use the same Small Areas, and the areas that were re-cut are the ones that grew, so a like-for-like comparison understates growth badly. Rent and yield are still too sparse to show per town. Built from 22 CSO Small Areas.

Homes for sale in Castleknock

The stronger town on the data.

Compare somewhere else

Put any two Irish towns head to head, or step up to the wider Eircode areas.