CastleknockCo. Dublin City vs RathfarnhamCo. Dublin CityTown level

The same comparison as the area page, but measured for the town itself, not the whole Eircode routing key.

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iCastleknock sits in D15, Rathfarnham in D14. Each figure below is tagged with the geographic level it's actually measured at.
!Castleknock & Rathfarnham 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.
Castleknock
Rathfarnham

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

TOWNS
Castleknock
Co. DUBLIN CITY · in D15 · pop · 12 small areas
Rathfarnham
Co. DUBLIN CITY · in D14 · pop 458 · 8 small areas
Prices & market● TOWN · exact
Median sale price
€540k
€679k
Typical range (P25–P75)
€427k – €751k
€541k – €851k
Sales (24m)
640
720
Price momentum (YoY)
+4.1%
+3.6%
New-build share
1.4%
1.7%
Schools, health & amenities● TOWN · counts
Count of each facility whose location falls inside the town boundary. Bigger towns naturally score higher — read alongside population.
Schools
1 prim · 1 sec
1 prim · 0 sec
Castleknock · 2 schools (largest first)
Castleknock Community College Secondary
1,290 pupils · 75% to 3rd-level · MULTI DENOMINATIONAL
St Patricks Ns Primary
891 pupils · Catholic
Rathfarnham · 1 schools (largest first)
Whitechurch Nat School Primary
199 pupils · Church Of Ireland
Creches
2
3
GP practices
1
1
Pharmacies
1
1
Hospitals
0
0
Bus stops
11
5
Rail / Luas stops
0
0
Gyms & leisure
1
1
Parks & playgrounds
4
0
Sports pitches
23
9
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.
Dublin
17m · ~35 rush
17m · ~35 rush
Waterford
118m · ~130 rush
118m · ~130 rush
Limerick
139m · ~155 rush
139m · ~155 rush
Galway
144m · ~170 rush
151m · ~175 rush
Cork
178m · ~200 rush
178m · ~200 rush
Affluence & profile● ELECTORAL DIVISION
Affluence (Pobal HP)
6.8
6.6
Castleknock · 4 EDs, poorest → richest
-6Blanchardstown-coolmineBelow average
0Blanchardstown-delwoodBelow average
+9Castleknock-knockmaroonAffluent
+9Castleknock-parkAffluent
Rathfarnham · 8 EDs, poorest → richest
-7EdmondstownBelow average
+4Rathfarnham-st. Enda'sAffluent
+7Ballinteer-woodparkAffluent
+7Rathfarnham-butterfieldAffluent
+9Foxrock-carrickminesAffluent
+10Templeogue-kimmage ManorAffluent
+10Rathfarnham VillageAffluent
+11Churchtown-landscapeAffluent
Third-level educated
62.2%
60.9%
Professional class
56.5%
62.1%
Unemployment
6.3%
5.2%
Owner-occupier
71.7%
84.6%
Private rental
23.3%
12.3%
Social housing (LA)
3.2%
1.2%
Liveability & safety● AREA · D15 / D14
Wider-area figures, not the town. Quality of life & rank are for the whole Eircode area each town sits in (CastleknockD15, RathfarnhamD14); safety & crime are the DMR West Garda division.
Quality of Life
66/100
71/100
National rank
#35
#10
County rank
#10
#2
Safety
48/100
60/100
Crime / 1,000
79.6
60.2

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 -6 (least affluent) → Castleknock-park +9 (most affluent). It straddles the national average.
Rathfarnham Affluent+6.6
← more deprivednational avg · 0more affluent →
Spread across the town: Edmondstown -7 (least affluent) → Churchtown-landscape +12 (most affluent). It straddles the national average.

How accurate is this, and at what level?

● TOWN
Prices, amenities & commute — exact, 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. The figures the routing-key area page can't give you.

● ED
Affluence, profile & tenure — Electoral-Division level.

Pobal HP, third-level, class, unemployment, tenure are published per Electoral Division and averaged across the town's EDs — a range where the town spans several EDs (see the bar above).

● AREA
Liveability & safety — wider-area, not the town.

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

Population & growth are loaded for ~7 counties so far (not Leinster yet); rent & yield are too sparse per town. Tap Schools or Affluence to drill in. Built from 20 CSO Small Areas.
AffluenceEducationAmenitiesTransportSafetyAffordabilityCity access
CastleknockRathfarnham
The verdict

Castleknock is the stronger town on the data — it leads on 3 of the 7 dimensions to Rathfarnham’s 1, with 3 level: schools & amenities, public transport and affordability. Rathfarnham leads on safety.

Higher is better on every spoke — affluence, education, amenity density, transport, safety, affordability and nearest-city access, scored head-to-head.

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