Town comparison · Castleknock vs Firhouse

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Castleknock or Firhouse?

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 | Firhouse, Co. Dublin City · D24 · 2,369 people

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

Castleknock leads on
affluenceeducation levelsschools & amenitiespublic transport
Firhouse leads on
affordability
30166

Castleknock aheadlevel or not comparableFirhouse ahead

AffluenceEducationAmenitiesTransportSafetyAffordabilityCity access
CastleknockFirhouse
iCastleknock sits in D15, Firhouse 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 & Firhouse 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
Firhouse

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
2,369

Prices & market

TOWN · exact
€540k
Median sale pricelower is better
€490k
Firhouse leads
€435k – €743k
Typical range (P25–P75)
€410k – €560k
630
Sales (24m)
161
+1.0%
Price momentum (YoY)
+1.5%
17.6%
New-build share
14.3%

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
3 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
Firhouse · 4 schools (largest first)
Firhouse Community College Secondary
824 pupils · 75% to 3rd-level · INTER DENOMINATIONAL
Holy Rosary Primary School Primary
544 pupils · CatholicDEIS
City West Educate Together National School Primary
378 pupils · Multi Denominational
Scoil Carmel Primary
337 pupils · Catholic
20
Creches
3
Castleknock leads
3
GP practices
2
Castleknock leads
8
Pharmacies
1
Castleknock leads
0
Hospitals
0
42
Bus stops
24
Castleknock leads
1
Rail / Luas stops
0
Castleknock leads
5
Gyms & leisure
2
Castleknock leads
6
Parks & playgrounds
8
Firhouse leads
66
Sports pitches
20
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
1
Castleknock leads
5
Cafés
1
Castleknock leads
10
Pubs & bars
2
Castleknock leads
9
Takeaways
3
Castleknock leads
0
Nightclubs
0
0
Cinema & theatre
0
116
Residents per venuelower is better
338
Castleknock 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
0
Castleknock leads
4
Convenience shops
2
Castleknock leads
1
Bakery, butcher & greengrocer
0
Castleknock leads
0
Banks
0
2
Post offices
0
Castleknock leads
3
Hairdressers
0
Castleknock leads
4
Dentists
0
Castleknock leads
1
Vets
1
1
Filling stations
0
Castleknock leads
5
EV charging
0
Castleknock leads
2
Library & community centre
2
138
Residents per shop or servicelower is better
474
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
19m · ~40 rush
Castleknock leads
118m · ~130 rush
Waterfordlower is better
110m · ~125 rush
Firhouse leads
139m · ~155 rush
Limericklower is better
132m · ~150 rush
Firhouse leads
144m · ~170 rush
Galway
144m · ~170 rush
178m · ~200 rush
Corklower is better
171m · ~195 rush
Firhouse leads

Affluence & profile

ELECTORAL DIVISION
6.8
Affluence (Pobal HP)
0.6
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
Firhouse · 6 EDs, poorest → richest
-7EdmondstownBelow average
-1EdmondstownBelow average
+1SaggartAbove average
+2Firhouse VillageAbove average
+3Firhouse VillageAbove average
+3SaggartAbove average
60.1%
Third-level educated
42.9%
Castleknock leads
56.0%
Professional class
41.7%
Castleknock leads
7.1%
Unemploymentlower is better
9.1%
Castleknock leads
71.7%
Owner-occupier
77.7%
Firhouse leads
24.4%
Private rental
18.2%
3.1%
Social housing (LA)
5.5%

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 (CastleknockD15, FirhouseD24); 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.

CastleknockFirhouseOverall (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.
Firhouse Above average+0.6
← more deprivednational avg · 0more affluent →
Spread across the town: Edmondstown -7 (least affluent) → Saggart +3 (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 16 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.