Town comparison · Castleknock vs Tallaght

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Castleknock or Tallaght?

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 | Tallaght, Co. Dublin · D24 · 81,022 people

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

Castleknock leads on
affluenceeducation levelsaccess to its nearest city
Tallaght leads on
schools & amenitiespublic transportaffordability
121129

Castleknock aheadlevel or not comparableTallaght ahead

AffluenceEducationAmenitiesTransportSafetyAffordabilityCity access
CastleknockTallaght
iCastleknock sits in D15, Tallaght in D24. 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 is a city suburb — 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
Tallaght

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
81,022

Prices & market

TOWN · exact
€530k
Median sale pricelower is better
€370k
Tallaght leads
€435k – €737k
Typical range (P25–P75)
€295k – €450k
617
Sales (24m)
1,112
+1.0%
Price momentum (YoY)
+12.0%
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
19 prim · 4 sec
Tallaght 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
Tallaght · 23 schools (largest first)
Old Bawn Community School Secondary
1,032 pupils · 75% to 3rd-level · INTER DENOMINATIONAL
St Marks Community School Secondary
924 pupils · 50% to 3rd-level · INTER DENOMINATIONALDEIS
Tallaght Community School Secondary
828 pupils · 50% to 3rd-level · INTER DENOMINATIONALDEIS
Coláiste De Híde Secondary
267 pupils · 35% to 3rd-level · MULTI DENOMINATIONALDEIS
St Marks Sen Ns Primary
492 pupils · CatholicDEIS
St Marks Junior Mixed Primary
464 pupils · CatholicDEIS
St Dominic's National School Primary
411 pupils · CatholicDEIS
St Martin De Porres N S Primary
394 pupils · Catholic
Scoil Maelruain Senior Primary
388 pupils · Catholic
Belgard Heights N S Primary
381 pupils · CatholicDEIS
Scoil Maelruain Junior Primary
379 pupils · Catholic
St Marys School Primary
323 pupils · Catholic
St Annes Primary School Primary
311 pupils · CatholicDEIS
St Kevins Boys Primary
277 pupils · Catholic
Scoil Santain Primary
269 pupils · CatholicDEIS
St Kevins Girls Primary
253 pupils · Catholic
S N An Croi Ro Naofa Primary
209 pupils · CatholicDEIS
S N Aenghusa Primary
205 pupils · CatholicDEIS
An Chroi Ro Naofa Sois Primary
179 pupils · CatholicDEIS
Scoil Aenghusa Jun Ns Primary
173 pupils · CatholicDEIS
Scoil Cnoc Mhuire Junior Primary
151 pupils · CatholicDEIS
Scoil Cnoc Mhuire Sin Primary
146 pupils · CatholicDEIS
Scoil Iosa Primary
103 pupils · CatholicDEIS
20
Creches
47
Tallaght leads
3
GP practices
7
Tallaght leads
8
Pharmacies
13
Tallaght leads
0
Hospitals
2
Tallaght leads
42
Bus stops
141
Tallaght leads
1
Rail / Luas stops
16
Tallaght leads
5
Gyms & leisure
24
Tallaght leads
6
Parks & playgrounds
51
Tallaght leads
66
Sports pitches
90
Tallaght 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
20
Tallaght leads
5
Cafés
20
Tallaght leads
10
Pubs & bars
15
Tallaght leads
9
Takeaways
43
Tallaght leads
0
Nightclubs
0
0
Cinema & theatre
2
Tallaght leads
116
Residents per venuelower is better
810
Castleknock leads

Castleknock is a small town and Tallaght 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
15
Tallaght leads
4
Convenience shops
18
Tallaght leads
1
Bakery, butcher & greengrocer
3
Tallaght leads
0
Banks
8
Tallaght leads
2
Post offices
7
Tallaght leads
3
Hairdressers
18
Tallaght leads
4
Dentists
6
Tallaght leads
1
Vets
1
1
Filling stations
11
Tallaght leads
5
EV charging
6
Tallaght leads
2
Library & community centre
16
Tallaght leads
138
Residents per shop or servicelower is better
743
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
23m · ~45 rush
Castleknock leads
118m · ~130 rush
Waterfordlower is better
108m · ~120 rush
Tallaght leads
139m · ~155 rush
Limericklower is better
129m · ~145 rush
Tallaght leads
144m · ~170 rush
Galwaylower is better
146m · ~170 rush
Castleknock leads
178m · ~200 rush
Corklower is better
168m · ~190 rush
Tallaght leads

Affluence & profile

ELECTORAL DIVISION
6.8
Affluence (Pobal HP)
-10.5
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
Tallaght · 26 EDs, poorest → richest
-25Tallaght-killinardanExtremely disadvantaged
-24Tallaght-killinardanVery disadvantaged
-21Tallaght-avonbegVery disadvantaged
-18Tallaght-avonbegVery disadvantaged
-17Tallaght-fettercairnVery disadvantaged
-15Tallaght-tymonDisadvantaged
-13Tallaght-tymonDisadvantaged
-13Tallaght-millbrookDisadvantaged
-12Tallaght-jobstownDisadvantaged
-11Tallaght-millbrookDisadvantaged
-10Tallaght-kiltipperDisadvantaged
-9Tallaght-jobstownDisadvantaged
-8Tallaght-fettercairnDisadvantaged
-8Tallaght-belgardDisadvantaged
-8Tallaght-belgardBelow average
-8Tallaght-kiltipperBelow average
-8Tallaght-springfieldBelow average
-7Tallaght-oldbawnBelow average
-7Tallaght-kilnamanaghBelow average
-7Tallaght-kilnamanaghBelow average
-7Tallaght-oldbawnBelow average
-6Tallaght-springfieldBelow average
-6Tallaght-kingswoodBelow average
-6Tallaght-glenviewBelow average
-5Tallaght-kingswoodBelow average
-5Tallaght-glenviewBelow average
60.1%
Third-level educated
25.5%
Castleknock leads
56.0%
Professional class
25.0%
Castleknock leads
7.1%
Unemploymentlower is better
16.0%
Castleknock leads
71.7%
Owner-occupier
55.7%
Castleknock leads
24.4%
Private rental
19.7%
3.1%
Social housing (LA)
21.9%

Liveability & safety

AREA · D15 / D24

Wider-area figures, not the town. Quality of life & rank are for the whole Eircode area each town sits in (Castleknock → D15, Tallaght → D24); safety & crime are the DMR West Garda division — so they read identically for both towns.

66/100
Quality of Life
59/100
Castleknock leads

Quality of Life is the equal-weighted average of these seven 0–100 dimensions, scored for the whole Eircode routing area (D15 / D24) 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.

CastleknockTallaghtOverall (avg)
Safety66485948
Affordability6675
Infrastructure100100
Family6062
Education6332
Environment6969
Economic5325
020406080100020406080100
#35
National ranklower is better
#85
Castleknock leads
#10
County ranklower is better
#19
Castleknock leads
48/100
Safety
48/100
79.6
Crime / 1,000
79.6

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.
Tallaght Disadvantaged-10.5
← more deprivednational avg · 0more affluent →
Spread across the town: Tallaght-killinardan -25 (least affluent) → Tallaght-glenview -5 (most affluent). Every neighbourhood is below 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 268 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.