Each edition grades its towns against each other only.
The neighbourhood has 22,510 residents and lies in Dublin. Its population rose 13% from 2016 to 2022.
Real strengths, and real weak spots. Health is its strong suit (A−). Where it falls short is cost of living (C−): half the homes sold for more than €408,000, a price of 5.1 times what the median household earns. The overall grade lands at B−, #149 of 320 Irish towns. Nationally, it does better than 54% of Irish towns. Elsewhere it is close to typical: C+ for safety, B for jobs & income, B for walkability and B− for hazard risk.
Figures: health, work and commuting, CSO Census 2022 · prices, Property Price Register, 2023 to 2025 · incomes, CSO · crime, CSO recorded crime, 2023 to 2025 · radon, EPA.
The 3 things Clonsilla does most differently from other towns.
Each subject compares Clonsilla with Irish towns of 2,500 or more, ordered by how far it is from the middle. Towns in other countries are graded separately.
How TownRatings grades Irish towns →
3 archaeological sites are on the record here too.
0% of its homes were built before 1919, against 3% in the median of Irish towns.
Data highlights are ordered by what stands out in Clonsilla.
1.4% of residents described their health as bad or very bad, below both Co. Dublin’s towns (1.9%) and Irish towns (2%). Asked at the census, 92% of residents of Clonsilla said they were in good or very good health. Family carers: 4.4% of the people in Clonsilla look after someone without pay.
| Census 2022 | Clonsilla | Co. Dublin | Ireland |
|---|---|---|---|
| With a disability | 17% | 22% | 22% |
| Unpaid carers | 4.4% | 5.3% | 5.4% |
| Good or very good health | 92% | 89% | 88% |
| Bad or very bad health | 1.4% | 1.9% | 2% |
CSO, Census 2022 general health, disability and carers · CSO life expectancy by region, 2016 · HSE medical cards, 2024 · TownRatings age-standardised ratios
Social renters account for 4% of households. Prices in Clonsilla are up 92% since 2010: the typical sale went from €229K that year to €438K in 2025. Renting cost €2,063 a month on average, near Co. Dublin’s towns (€2,066) and higher than Irish towns (€1,606).
| By type | Median | Sales |
|---|---|---|
| New homes | €515,000 | 60 |
| Second-hand homes | €395,000 | 621 |
| The last 12 months | €470,000 | 227 |
| Housing | Clonsilla | Co. Dublin | Ireland |
|---|---|---|---|
| Households in social housing | 4% | 10% | 13% |
| Households owning their home | 75% | 66% | 61% |
| Median sale price | €408K | €454K | €350K |
| Rent on a new tenancy, a month | €2,063 | €2,066 | €1,606 |
Property Price Register · CSO residential prices by Eircode area · RTB rents · CSO, Census 2022 tenure
5% of the schools teach through Irish, lower than both Co. Dublin’s towns (7%) and Irish towns (8%). For secondary school, the closest is Hartstown Community School, 0.6 km from the town. Families in Clonsilla have 56 schools within 3 km to choose from: 38 primary schools, 16 secondary schools and 2 special schools.
| School | Level | Pupils | Ethos |
|---|---|---|---|
| St Patricks N.S.Largest primary schoolPrimary | Primary | 867 | Catholic |
| Castleknock Community CollegeLargest post-primary schoolPost-primary · ETB | Post-primary · ETB | 1,318 | Multi-denominational |
| Gaelscoil Thulach na nÓg GaelscoilTeaches through IrishPrimary | Primary | 360 | Inter-denominational |
| Scoil Choilm Community NS DEISIn the DEIS schemePrimary | Primary | 698 | Multi-denominational |
| Schools within 3 km | Clonsilla | Co. Dublin | Ireland |
|---|---|---|---|
| Single-sex secondaries | 19% | 40% | 39% |
| In the DEIS scheme | 21% | 40% | 35% |
| Pupils since 2019/20 | −2% | +4% | +4% |
| Teach through Irish | 5% | 7% | 8% |
Department of Education school lists, 2025/26 (preliminary) · no results are published by school · You won’t find letters or results below: Ireland publishes none for single schools.
The average trip to work took 33.3 min, above Co. Dublin’s towns (31.1 min) and Irish towns (27.6 min) alike. At the census, nearly two thirds of commuters went by car. Also worth knowing: the jobless rate is 7.4%.
| Census 2022 | Clonsilla | Co. Dublin | Ireland |
|---|---|---|---|
| Average trip | 33.3 min | 31.1 min | 27.6 min |
| Median household income | €79,270 | €72,400 | €57,760 |
| Trips under 15 minutes | 25% | 23% | 31% |
| Unemployment rate | 7.4% | 7.3% | 9.2% |
CSO, Census 2022 travel to work, work and education · CSO Geographical Profiles of Income 2022 · Live Register · Census day was 3 April 2022, with working from home still common; shares are of those who travelled.
July afternoons reach 20.0°C here, close to both Co. Dublin’s towns (19.9°C) and Irish towns (19.9°C). Day and night, summer and winter, Clonsilla averages 10.0°C. A year brings 814 mm of rain to Clonsilla.
| Climate, 1991–2020 | Clonsilla | Co. Dublin | Ireland |
|---|---|---|---|
| January low | 2.3°C | 2.9°C | 2.9°C |
| Average temperature over the year | 10.0°C | 10.3°C | 10.3°C |
| Rain a year | 814 mm | 770 mm | 937 mm |
| July high | 20.0°C | 19.9°C | 19.9°C |
Met Éireann, 1991–2020 averages.
78% of homes are within 400 m of green space, below Co. Dublin’s towns (100%) and Irish towns (92%) alike. 5 parks and 85 ha of green space in all: that is Clonsilla’s share. Per 1,000 residents, Clonsilla has 3.8 ha of green space.
| Outdoors | Clonsilla | Co. Dublin | Ireland |
|---|---|---|---|
| Near a park | 78% | 100% | 92% |
| Paths per km² of town | 6.4 km per km² | 5.4 km per km² | 2.1 km per km² |
| Woodland within 1 km | 3% | 2.2% | 2.7% |
| Protected nature within 5 km | 0.1% | 0.2% | 1.8% |
OpenStreetMap parks and paths, NPWS protected sites and the National Trails Register.
In November a normal day reaches 11°C and a normal night 4°C; the forecast for Clonsilla below sets each day against them. Around 1 mm of rain is due today, on a breeze of up to 24 km/h, with a low of 9°C. Rain peaks later in the week on Tuesday, at about 7 mm for the day.
| Season | High | Low | Rain |
|---|---|---|---|
| Winter | 9°C | 2°C | 201 mm |
| Spring | 13°C | 5°C | 169 mm |
| Summer | 19°C | 11°C | 207 mm |
| Autumn | 14°C | 7°C | 238 mm |
Forecast: MET Norway (CC BY 4.0) · normals: Met Éireann, 1991–2020
Children under 15 make up 24%, above both Co. Dublin’s towns (17%) and Irish towns (20%). 30% of residents were born abroad. Graduates make up 38% of adults.
50.4% of Clonsilla’s residents are women
11,337 women and 11,173 men live here; across Ireland, women are 50.6%.
| Clonsilla | Co. Dublin | Ireland | |
|---|---|---|---|
| Under 15 | 24% | 17% | 20% |
| 15–24 | 15% | 12% | 12% |
| 25–44 | 30% | 30% | 29% |
| 45–64 | 25% | 24% | 24% |
| 65+ | 5.8% | 14% | 14% |
| Primary or none | 6.9% | 8.5% | 9.7% |
| Lower secondary | 11% | 11% | 14% |
| Leaving Cert | 37% | 30% | 35% |
| Diploma or cert | 6.6% | 5.2% | 5.8% |
| Degree or higher | 38% | 44% | 36% |
CSO, Census 2022 · Co. Dublin and Ireland: the median of their towns of 2,500+
Clonsilla spans more than one of the local electoral areas: 87% of its residents vote in Ongar, most of the rest in Castleknock. Independent lead Fingal County Council with 7 of 40 seats, but no party has a majority: 21 are needed. In the Dáil, Clonsilla is part of Dublin West, which elects 5 TDs.
| Turnout | Clonsilla | Co. Dublin | Ireland |
|---|---|---|---|
| Local elections, June 2024 | 38% | 42% | 46% |
| General election, November 2024 | 57% | 57% | 59% |
Department of Housing count sheets, 2024
Relative to its size, Clonsilla keeps 2 buildings on the inventory per 10,000 residents. 0.3% of its homes were built before 1919, lower than both Co. Dublin’s towns (1.2%) and Irish towns (3.4%). The Sites and Monuments Record holds 3 entries for the town.
| Heritage | Clonsilla | Co. Dublin | Ireland |
|---|---|---|---|
| Inventory buildings per 10,000 residents | 2 | 10 | 48 |
| Homes built before 1919 | 0.3% | 1.2% | 3.4% |
| Archaeological sites on the record | 3 | 7 | 11 |
NIAH, the National Inventory of Architectural Heritage · Sites and Monuments Record · CSO, Census 2022 homes by year built
Town centres with shops, stations and nightlife record more incidents per resident: they are counted where they happen, not where victims live.
Damage to property topped the graded crimes in Clonsilla (2023–2025). Violent crime ran at 4.7 per 1,000 residents a year, below Co. Dublin’s towns (5.3) and Irish towns (5.7) alike. Homes see 6.9 burglaries and acts of damage per 1,000 residents a year.
Not in the gradeTheft, public order and offences found by Garda checks (drugs, road traffic, dangerous acts) are shown but left out of the Safety Grade, which counts violence, burglary and damage.
| Per 1,000 a year | Clonsilla | Co. Dublin | Ireland |
|---|---|---|---|
| Violent crime | 4.7 | 5.3 | 5.7 |
| Burglary & damage | 6.9 | 7.5 | 6.4 |
CSO recorded crime by Garda station, 2023–2025, shared to towns by where residents live · Census 2022 populations
A flood relief scheme, the River Tolka (Clonee and Dunboyne) Scheme, protects parts of Clonsilla. Landslides: none of Clonsilla lies in a high-susceptibility zone. Very few of its homes sit on low ground by water.
| Share of homes | Clonsilla | Co. Dublin | Ireland |
|---|---|---|---|
| Low-lying near a river | 0% | 0% | 0.5% |
| In high-radon areas | 0% | 0% | 0% |
EPA radon map, GSI landslide susceptibility and our low-lying homes estimate from OPW LiDAR.
Castles, abbeys, gardens, museums and days out in and near Clonsilla. Best known first.
5 of Clonsilla’s buildings made the national inventory of architectural heritage, all at regional importance. The national record lists 3 archaeological sites in and around the town.
No notable person born in Clonsilla is on our list; these were born in the towns around it.
Graham Carey: Biser Todorov, CC BY 4.0 · Roderic O'Gorman: Roderic O'Gorman, CC BY-SA 4.0 · Mark Ferguson: Mark Ferguson, Public domain
The nearest places of 1,000 or more. Boundaries: Tailte Éireann, CSO Urban Areas 2022 and Electoral Divisions.
| Town | People | km | Overall | Cost | Safety | Health |
|---|---|---|---|---|---|---|
| Clonsilla | 22,510 | — | B− | C− | C+ | A− |
| Ongar | 13,390 | 1 | A− | B | C+ | A |
| Clonee Meath | 1,205 | 2 | — | C+ | B+ | B− |
| Mulhuddart | 19,252 | 2.2 | B− | B | C+ | C |
| Blanchardstown | 24,613 | 2.7 | B | B− | C+ | B+ |
| Carpenterstown | 20,967 | 3.4 | A | B− | C+ | A+ |
| Hollystown | 12,884 | 3.8 | B | C− | C+ | A |
People: CSO, Census 2022. Distances: centre to centre.
Clonsilla had 22,510 people at the 2022 census, up from 19,941 in 2016: 12.9% more, against 7.6% in the median of Irish towns.
The median age in Clonsilla is 34.3, against 37.6 in the median of Irish towns.
11% mostly work from home, and 25% of journeys take under 15 minutes.
Neighbourhood in Dublin
22,510 people live in Clonsilla, in the area of Fingal County Council. TownRatings splits Dublin into neighbourhoods made from the CSO’s Electoral Divisions, named from Tailte Éireann’s gazetteer, so each has figures of its own.
Built from Tailte Éireann’s boundaries and the CSO’s Census 2022 (CC BY 4.0)
Sources: CSO, Census 2022 Small Area Population Statistics (CC BY 4.0) · Tailte Éireann, Urban Areas and Electoral Divisions 2022 (CC BY 4.0) · TownRatings grades, run #544 (Irish towns only). Under Creative Commons Attribution 4.0 (CC BY 4.0).
Contains Central Statistics Office (CSO) data, Census 2022, and Tailte Éireann boundaries (CSO Urban Areas, Small Areas, local electoral areas, constituencies), under Creative Commons Attribution 4.0 (CC BY 4.0).