Town comparison · Castleknock vs Ranelagh

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Castleknock or Ranelagh?

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 | Ranelagh, Co. Dublin · D06 · 48,716 people

Castleknock and Ranelagh are closely matched. Each leads on 3 of the 7 dimensions, with 1 level.

Castleknock leads on
schools & amenitiespublic transportaffordability
Ranelagh leads on
affluenceeducation levelssafety
181123

Castleknock aheadlevel or not comparableRanelagh ahead

AffluenceEducationAmenitiesTransportSafetyAffordabilityCity access
CastleknockRanelagh
iCastleknock sits in D15, Ranelagh in D06. 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 & Ranelagh 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
Ranelagh

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
48,716

Prices & market

TOWN · exact
€530k
Median sale pricelower is better
€800k
Castleknock leads
€435k – €737k
Typical range (P25–P75)
€542k – €1320k
617
Sales (24m)
902
+1.0%
Price momentum (YoY)
+44.1%
17.7%
New-build share
1.3%

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
2 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
Ranelagh · 4 schools (largest first)
Christian Brothers, Synge St. Secondary
291 pupils · 35% to 3rd-level · CATHOLICDEIS
Technological University Dublin Third-level
enrolment n/a · technological_university
Presentation Primary School Primary
229 pupils · CatholicDEIS
Sancta Maria C B S Primary
101 pupils · CatholicDEIS
20
Creches
5
Castleknock leads
3
GP practices
5
Ranelagh leads
8
Pharmacies
5
Castleknock leads
0
Hospitals
1
Ranelagh leads
42
Bus stops
20
Castleknock leads
1
Rail / Luas stops
2
Ranelagh leads
5
Gyms & leisure
6
Ranelagh leads
6
Parks & playgrounds
3
Castleknock leads
66
Sports pitches
2
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
30
Ranelagh leads
5
Cafés
27
Ranelagh leads
10
Pubs & bars
19
Ranelagh leads
9
Takeaways
25
Ranelagh leads
0
Nightclubs
3
Ranelagh leads
0
Cinema & theatre
0
116
Residents per venuelower is better
468
Castleknock leads

Castleknock is a small town and Ranelagh is a large town, so their national rankings aren’t like-for-like — each is ranked only against places of its own size. Compare them on the residents-per-venue row instead.

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
0
Castleknock leads
4
Convenience shops
11
Ranelagh leads
1
Bakery, butcher & greengrocer
4
Ranelagh leads
0
Banks
3
Ranelagh leads
2
Post offices
2
3
Hairdressers
8
Ranelagh leads
4
Dentists
6
Ranelagh leads
1
Vets
0
Castleknock leads
1
Filling stations
0
Castleknock leads
5
EV charging
1
Castleknock leads
2
Library & community centre
2
138
Residents per shop or servicelower is better
1,317
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
10m · ~20 rush
Ranelagh leads
118m · ~130 rush
Waterford
118m · ~130 rush
139m · ~155 rush
Limericklower is better
140m · ~160 rush
Castleknock leads
144m · ~170 rush
Galwaylower is better
149m · ~175 rush
Castleknock leads
178m · ~200 rush
Corklower is better
179m · ~200 rush
Castleknock leads

Affluence & profile

ELECTORAL DIVISION
6.8
Affluence (Pobal HP)
10.7
Ranelagh 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
Ranelagh · 31 EDs, poorest → richest
-6Royal Exchange BBelow average
+1Royal Exchange BAbove average
+5Wood Quay BAffluent
+6Saint Kevin'sAffluent
+6Wood Quay BAffluent
+9South DockAffluent
+10Rathmines West BAffluent
+10Rathmines West BAffluent
+10Rathmines West DAffluent
+10Rathmines West DAffluent
+10Rathmines West AAffluent
+10Rathmines East AAffluent
+10Mansion House BAffluent
+10Rathmines West FAffluent
+10Rathmines West FAffluent
+10Rathmines West AAffluent
+11South DockAffluent
+11Pembroke West CAffluent
+12Rathmines East DAffluent
+12Rathmines East CAffluent
+12Rathmines West CAffluent
+12Rathmines East BAffluent
+12Pembroke West BVery affluent
+12Rathmines East AVery affluent
+13Rathmines West CVery affluent
+13Rathmines East CVery affluent
+13Pembroke West BVery affluent
+13Rathmines East DVery affluent
+14Rathmines East BVery affluent
+15Pembroke West CVery affluent
+17Mansion House BVery affluent
60.1%
Third-level educated
76.9%
Ranelagh leads
56.0%
Professional class
55.5%
Castleknock leads
7.1%
Unemploymentlower is better
6.7%
Ranelagh leads
71.7%
Owner-occupier
34.2%
Castleknock leads
24.4%
Private rental
57.9%
3.1%
Social housing (LA)
3.8%

Liveability & safety

AREA · D15 / D06

Wider-area figures, not the town. Quality of life & rank are for the whole Eircode area each town sits in (Castleknock → D15, Ranelagh → D06); safety & crime are the DMR West Garda division.

66/100
Quality of Life
68/100
Ranelagh leads

Quality of Life is the equal-weighted average of these seven 0–100 dimensions, scored for the whole Eircode routing area (D15 / D06) 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.

CastleknockRanelaghOverall (avg)
Safety66486860
Affordability6610
Infrastructure100100
Family6046
Education63100
Environment6974
Economic5389
020406080100020406080100
#35
National ranklower is better
#28
Ranelagh leads
#10
County ranklower is better
#9
Ranelagh leads
48/100
Safety
60/100
Ranelagh leads
79.6
Crime / 1,000lower is better
60.2
Ranelagh 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.
Ranelagh Affluent+10.7
← more deprivednational avg · 0more affluent →
Spread across the town: Royal Exchange B -6 (least affluent) → Mansion House B +17 (most affluent). It straddles 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 236 CSO Small Areas.

Homes for sale in Castleknock

The towns are level, so these are from the first.

Compare somewhere else

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