KnocklyonDublin

In Dublin, this neighbourhood has 13,854 residents. The population grew 20% between 2016 and 2022.

6 places within 19 kmMap →

Photo: Sarah777 · Public domain

Population

13,854

CSO, Census 2022 · South Dublin County Council

Median age

36.9

13% are 65+ · Co. Dublin 14%

Degree level

55%

of residents 15+ · Irish towns 36%

Walk, cycle, transit

19%

of working residents · Irish towns 23%

TownGrade

#24 of 320

Is Knocklyon a good place to live?

Much to like here, and you pay for it. Residents are healthier than most: 48 residents in bad health and 85 with a disability for every 100 its ages predict. The catch is cost of living: buying the median home, at €570,000, takes 5.6 times the town’s median household income. All told, that adds up to an A overall and a rank of #5 of 116 in Co. Dublin. On that grade it does better than 93% of Irish towns. Elsewhere it is close to typical: B for walkability and B− for hazard risk.

Figures: health and commuting, CSO Census 2022 · prices, Property Price Register, 2023 to 2025 · incomes, CSO · radon, EPA.

StrongestA⁺Health AJobs & income A⁻SafetyWeakestDCost of living

What makes Knocklyon stand out

The 3 things Knocklyon does most differently from other towns.

Picked automatically from the data

Median gross household income

Income

Gross, a year (the median of Irish towns: €57,760)

CSO household income for the electoral division.

Health

Better than 99%

of Irish towns on health

Its health grade: A+.

Median sale price

Housing

€596,600 median home

1.6 times the median of Irish towns, €372,600

Property Price Register, 2023 to 2025.

How Knocklyon grades

Each subject compares Knocklyon 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 grading works

Health85 with a disability per 100 predictedA⁺Open →Cost of livingIn the bottom fifth of the towns comparedDOpen →Jobs & income5% unemployedAOpen →SafetyGraded on crime per residentA⁻Open →WalkabilityEasier than most to get around on footBOpen →Hazard risk6% of homes above the radon reference levelB⁻Open →

SchoolsNot graded in Ireland: schools’ exam results aren’t published school by school (Education Act 1998, s.53)–

How TownRatings grades Irish towns →

8 places on the register, on Knocklyon’s outline

Knocklyon’s story

Knocklyon has 8 buildings on the National Inventory

The record adds 3 archaeological sites.

Homes built before 1919: 0%, against 3% across Irish towns.

1770Idrone
1790Prospect House
1820Charleville House

Explore the history →

Nearby attractions

Pearse Museum - St. Enda's Park and 11 more in and around Knocklyon

Castles, abbeys, gardens, museums and days out in and near Knocklyon. Best known first.

All attractions →

Museum · Office of Public WorksPearse Museum - St. Enda's Park1.3 km outside town, to the east

CastleDrimnagh Castle3.7 km outside town, to the north CastleCastle · Office of Public WorksRathfarnham Castle2 km outside town, to the northeast AttractionAttraction · Office of Public WorksNature Room1.3 km outside town, to the east Art galleryArt galleryRUA RED South Dublin Arts Centre2.8 km outside town, to the west GardenGardenAirfield Estate4.4 km outside town, to the east

Places: Fáilte Ireland open data (CC BY 4.0) · © OpenStreetMap contributors · Wikidata

Photos: each place’s Wikidata image, from Wikimedia Commons under the licence below (our copy, resized).

Photo credits (2)

Pearse Museum - St. Enda's Park: Dave Addey at English Wikipedia, Public domain, Wikimedia Commons
Drimnagh Castle: Ericlevik, CC BY-SA 4.0, Wikimedia Commons

The data

Data highlights are ordered by what stands out in Knocklyon.

HealthHealth A⁺

Knocklyon has 85 people with a disability for every 100 its ages predict, fewer than in both Co. Dublin’s towns and Irish towns

Asked at the census, 94% of residents of Knocklyon said they were in good or very good health. This Co. Dublin town ranks 3rd of the 40 Irish towns nearest its size on the Health Grade. At the census, 0.8% of residents said their health was bad or very bad, lower than both Co. Dublin’s towns (1.9%) and Irish towns (2%). A disability affects 17% of people locally.

94%good or very good healthA⁺Health Grade

Per 100 expected at the town’s ages · age-standardised

Bad health48

Disability85

Co. Dublin103

Expected100

General health, self-reported

Good or very good 94%Fair 6%Bad or very bad 1%

Census 2022	Knocklyon	Co. Dublin	Ireland
Good or very good health	94%	89%	88%
Bad or very bad health	0.8%	1.9%	2%
With a disability	17%	22%	22%
Unpaid carers	5.8%	5.3%	5.4%

bad health per 100 expected · Co. Dublin 103

disability per 100 expected · Co. Dublin 99

83.4 · 80.1

life expectancy, women · men, the Dublin region, 2016

28%

hold a medical card, HSE Dublin and Midlands

Full pageKnocklyon’s health pageOpen the page

Health GradeBad health 48, disability 85 per 100 expected Getting care71% within 800 m of a pharmacy, 86% of a GP surgery Census health94% in good or very good health The wider areaLife expectancy: women 83.4, men 80.1 Vs. the neighboursAhead of all 6 graded neighbours

CSO, Census 2022 general health, disability and carers · CSO life expectancy by region, 2016 · HSE medical cards, 2024 · TownRatings age-standardised ratios

HousingCost of living D

Most households in Knocklyon own their home: 85%, more than in both Co. Dublin’s towns and Irish towns

Prices in Knocklyon have kept pace with Irish towns since 2010: the typical sale is up 76%, to €615K in 2025, against 77%. Social housing holds 3% of households, lower than both Co. Dublin’s towns (10%) and Irish towns (13%). 12% of households are private tenants.

€570Kmedian sale priceDCost of living Grade

Median sale price · Property Price Register, 2023–2025

Knocklyon€570K

Co. Dublin€450K

Irish towns€350K

By type	Median	Sales
New homes	€500,000	50
Second-hand homes	€593,000	211
The last 12 months	€580,000	106

Housing	Knocklyon	Co. Dublin	Ireland
Households owning their home	85%	66%	61%
Median sale price	€570K	€450K	€350K
Households in social housing	3%	10%	13%
Households renting privately	12%	20%	22%

85%

own their home · Irish towns 61%

12%

rent privately · Irish towns 22%

€2,162

a month on new tenancies, Knocklyon

times median household income, County Dublin

Full pageKnocklyon’s cost of living pageOpen the page

Owners and renters85% own their home Cost of livingMedian sale price €570,000 Price trend€350K in 2010, €615K in 2025 Renting€2,162 a month · Average rent on new tenancies

Property Price Register · CSO residential prices by Eircode area · RTB rents · CSO, Census 2022 tenure

Work & commuteJobs & income A

Households in Knocklyon earn more than in both Co. Dublin’s towns and Irish towns: €101,050 a year

On foot, by bike or by bus and train: that was how nearly a fifth of commuters travelled at the census. Working mainly from home: 17% of workers, above both Co. Dublin’s towns (14%) and Irish towns (11%). 74% of people aged 15 to 64 were in work at the census.

19%walk, cycle or take transit

How working residents got to work · census 2022

Car or van65%

Bus11%

Bicycle5%

Walk2%

Train, DART or Luas1%

Census 2022	Knocklyon	Co. Dublin	Ireland
Median household income	€101,050	€72,400	€57,760
Unemployment rate	5%	7.4%	9.2%
In work, 15 to 64	74%	71%	68%
Average trip	32.3 min	31.1 min	27.6 min

€101,050

household income, 2022 estimate · Co. Dublin €71,123

17%

worked mainly from home, 2022

12%

trips of an hour or more

48,940

on the Live Register, County Dublin, September 2026

Walkability: better than 63% of Irish towns

Full pageKnocklyon’s work & commute pageOpen the page

Median income€101,050 a year · Median household income, before tax Getting to work19% walk, cycle or take transit Unemployment5% unemployed · Irish towns: 9.2%Benefits over time48,940 on the Live Register · +5.4% on a year earlier

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.

SafetySafety A⁻

Among the 118 Irish towns of 10,000 to 50,000 people, Knocklyon records less crime per resident than nine in ten them

The commonest graded crime in Knocklyon was damage to property (2023–2025). Burglary and damage came to 4.2 per 1,000 residents a year, below both Co. Dublin’s towns (7.5) and Irish towns (6.4). Add to that, each year, 2.6 violent crimes are recorded per 1,000 residents.

2.6violent incidents per 1,000 a yearA⁻Safety Grade

Compared with towns its sizeFewer incidents against residents per 1,000 than 90% of the 118 Irish towns of 10,000 to 50,000 people: less crime than most for its size. Context only, not part of the grade.

More crimeLess crime

Recorded by type · per 1,000 residents a year, 2023–2025

Theft9.8

Road traffic4.4

Damage2.9

Dangerous acts2.4

Public order2.3

Assault2

Drugs1.6

Burglary1.3

Against justice0.6

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	Knocklyon	Co. Dublin	Ireland
Burglary & damage	4.2	7.5	6.4
All recorded crime	28	59.2	54.3
Violent crime	2.6	5.3	5.7
Theft	9.8	18.5	15.3

2.6

violent incidents per 1,000 a year

4.2

burglary and damage per 1,000 a year

1,857

incidents a year, Rathfarnham Garda area

6.7

against residents per 1,000, as graded

Full pageKnocklyon’s safety reportOpen the page

Safety Grade2.6 violent incidents per 1,000 · Knocklyon records less crime per resident than 78% of Irish towns Crime by typeDamage to property is the most common of the graded categories Vs. the neighboursAhead of 2 of its 6 graded neighbours Questions“Is Knocklyon safe?”

CSO recorded crime by Garda station, 2023–2025, shared to towns by where residents live · Census 2022 populations

Schools

Schools around Knocklyon have lost ground: pupils −1% since 2019, below Co. Dublin’s towns and Irish towns

Within 3 km of Knocklyon there are 75 schools (45 primary schools, 22 secondary schools and 8 special schools). Nearly a quarter of the schools are in the DEIS scheme, below both Co. Dublin’s towns (40%) and Irish towns (35%). The nearest secondary, St. Colmcille's Community School, is 0.3 km away.

75schools within 3 km

School	Level	Pupils	Ethos
St Colmcille Senior N.S.Largest primary schoolPrimary	Primary	744	Catholic
Old Bawn Community SchoolLargest post-primary schoolPost-primary · Community school	Post-primary · Community school	1,024	Inter-denominational
Gaelcholáiste an Phiarsaigh GaelcholáisteTeaches through IrishPost-primary · Voluntary secondary	Post-primary · Voluntary secondary	296	Multi-denominational
Tallaght Community School DEISIn the DEIS schemePost-primary · Community school	Post-primary · Community school	840	Inter-denominational

See all 75 schools →

Schools by ethos · Schools within 3 km

Catholic54

Multi-denominational11

Church of Ireland4

Inter-denominational6

Schools within 3 km	Knocklyon	Co. Dublin	Ireland
In the DEIS scheme	23%	40%	35%
Pupils since 2019/20	−1%	+4%	+4%
Single-sex secondaries	36%	40%	39%

27,868

pupils at schools within 3 km, 2025/26

−1%

pupils since 2019/20 · Irish towns +4%

0.7 km

to the nearest primary school

0.3 km

to the nearest secondary school

Full pageKnocklyon’s schools pageOpen the page

Pupils over time27,868 pupils · −1% since 2019/20 Who runs them75 schools within 3 km Language8% teach through Irish · 6 schools teach through Irish Questions“What schools are there in Knocklyon?”

Department of Education school lists, 2025/26 (preliminary) · no results are published by school · No letters and no results: Ireland publishes none school by school.

Climate

In Knocklyon, July heat, January chill and rainfall all sit near the middle of Irish towns

Across the year it averages 10.1°C, lower than both Co. Dublin’s towns (10.3°C) and Irish towns (10.3°C). Expect January lows of around 2.5°C in Knocklyon. A year brings 860 mm of rain to Knocklyon.

19.8°CJuly afternoon high

Average afternoon highs by season · 1991–2020 averages

Winter8.5°C

Spring12.9°C

Summer19.2°C

Autumn14.0°C

Climate, 1991–2020	Knocklyon	Co. Dublin	Ireland
January low	2.5°C	2.9°C	2.9°C
Average temperature over the year	10.1°C	10.3°C	10.3°C
Rain a year	860 mm	770 mm	937 mm
July high	19.8°C	19.9°C	19.9°C

19.8°C

July high

2.5°C

January low

860 mm

Rain a year

99 mm

Wettest month

Air frosts

1,397 hrs

Sunshine

Full pageKnocklyon’s climate pageOpen the page

At a glanceJuly highs 19.8°C, January lows 2.5°C The yearSummer highs 19.2°C, winter lows 2.6°C Rain860 mm of rain a year · November is the wettest month, 99 mm Weather station8.5 km to the weather station · Casement

Met Éireann, 1991–2020 averages.

Outdoors

Knocklyon is made for walking: 5.8 km per km² of paths, more than in both Co. Dublin’s towns and Irish towns

Green space comes to 17.2 ha per 1,000 people in Knocklyon, higher than both Co. Dublin’s towns (7.6 ha) and Irish towns (4.1 ha). A park or green space is within 400 m for just over nine in ten homes. 5 parks and 239 ha of green space in all: that is the town’s share.

91%of homes near green space

Green space per 1,000 residents · per 1,000 residents

Knocklyon17.2 ha

Co. Dublin7.6 ha

Irish towns4.1 ha

Outdoors	Knocklyon	Co. Dublin	Ireland
Paths per km² of town	5.8 km per km²	5.4 km per km²	2.1 km per km²
Woodland within 1 km	4.7%	2.2%	2.7%
Green space per 1,000 residents	17.2 ha	7.6 ha	4.1 ha
Protected nature within 5 km	3.2%	0.2%	1.8%

91%

Near a park

17.2 ha

Green space

83 km

Footpaths

3.2%

Protected for nature

Full pageKnocklyon’s outdoors pageOpen the page

Paths and trails83 km of paths · 10 trails and greenways within 5 km Green space nearby91% of homes within 400 m Parks17.2 ha per 1,000 residents · 239 ha of green space, 5 parks Protected nature3.2% of the land within 5 km · No protected site within 5 km

OpenStreetMap parks and paths, NPWS protected sites and the National Trails Register.

Weather

Up to 11 degrees in Knocklyon today, light showers

Set beside Knocklyon’s forecast, a normal November runs from 5°C at night to 11°C by day. Rain totals about 1 mm today, the wind freshens to 24 km/h, and the low is 9°C. In December, the normal shifts to highs of 9°C and lows of 3°C.

11°C / 9°CToday

This month and the next three, normal highs · 1991–2020 averages

November11°C

December9°C

January8°C

February9°C

Season	High	Low	Rain
Winter	8°C	3°C	229 mm
Spring	13°C	5°C	183 mm
Summer	19°C	11°C	194 mm
Autumn	14°C	7°C	254 mm

11°C / 9°C

Today

0.9 mm

Rain, next 24 hours

21 km/h

Wind

81%

Humidity

9 h 18 min

Daylight

Full pageKnocklyon’s weather pageOpen the page

Next 24 hours0.9 mm Rain, next 24 hours · Some rain The week ahead11°C / 9°C Today · A normal 4 November: 12°C / 6°C Warnings & more9 h 18 min Daylight · 07:29 to 16:48

Forecast: MET Norway (CC BY 4.0) · normals: Met Éireann, 1991–2020

Who lives here

A town of families: 22% of people in Knocklyon are under 15, more than in both Co. Dublin’s towns and Irish towns

Daily Irish speakers outside school: 1.4%, higher than both Co. Dublin’s towns (1.2%) and Irish towns (1.1%). Graduates make up 55% of adults. 16% of residents were born abroad.

36.9median age

KnocklyonCo. DublinIreland

Co. DublinIreland

Ages · share of residents

13%

Highest education · residents 15 and older who have finished education

Primary or none4%

Lower secondary7%

Leaving Cert28%

Diploma or cert6%

Degree or higher55%

Women and men · all residents

Women make up 51.1% of Knocklyon

7,085 women and 6,769 men live here; across Ireland, women are 50.6%.

Ages and education in Knocklyon
	Knocklyon	Co. Dublin	Ireland
Under 15	22%	17%	20%
15–24	13%	12%	12%
25–44	29%	30%	29%
45–64	24%	24%	24%
65+	13%	14%	14%
Primary or none	3.8%	8.5%	9.7%
Lower secondary	6.9%	11%	14%
Leaving Cert	28%	30%	35%
Diploma or cert	6.3%	5.2%	5.8%
Degree or higher	55%	44%	36%

Full pageKnocklyon’s Who lives here pageOpen the page

Ages36.9 median age · 13% are 65 or over Households4,551 households · 3.1 people per household Where born16% born outside Ireland Irish speakers48% can speak Irish · 1.4% speak Irish daily outside school

CSO, Census 2022 · Co. Dublin and Ireland: the median of their towns of 2,500+

Town hall

Turnout in Firhouse-Bohernabreena was among the lowest at the 2024 local elections

Just over two in five voters turned out at the last local elections. Local government for Knocklyon is South Dublin County Council alone; Ireland has a single tier. South Dublin County Council has no ruling majority: Independent hold 10 of its 40 seats, short of the 21 needed.

10/40seats held by Independent

Seats on South Dublin County · June 2024

Independent10

Fine Gael9

Fianna Fáil5

Sinn Féin5

People Before Profit–Solidarity4

Labour Party3

Social Democrats2

Independent Ireland1

Turnout	Knocklyon	Co. Dublin	Ireland
Local elections, June 2024	41%	42%	46%
General election, November 2024	59%	57%	59%

Councillors

10/40

Independent seats on South Dublin County, the largest party

41%

turnout, June 2024

TDs elected for Dublin South-West

Full pageKnocklyon’s town hall & politics pageOpen the page

Who’s in chargeNo majority: Independent lead with 10 of 40 (21 needed)Councillors5 councillors · Firhouse-Bohernabreena How Knocklyon voted41% turned out · Local elections, June 2024 · Co. Dublin towns 42%TDs5 TDs · Dublin South-West

Department of Housing count sheets, 2024

History

8 inventory buildings stand in Knocklyon, each of regional importance

Relative to its size, Knocklyon keeps 6 buildings on the inventory per 10,000 residents, below Co. Dublin’s towns (10) and Irish towns (48) alike. 0.3% of homes date from before 1919. The Sites and Monuments Record holds 3 entries for the town.

8inventory buildings

Buildings by NIAH rating · NIAH

International0

National0

Regional8

Among them

sites on the Sites and Monuments Record

1770

earliest dated inventory building

homes built before 1919 · Irish towns 3%

Heritage	Knocklyon	Co. Dublin	Ireland
Inventory buildings per 10,000 residents	6	10	48
Homes built before 1919	0.3%	1.2%	3.4%
Archaeological sites on the record	3	7	11

Full pageKnocklyon’s history pageOpen the page

NIAH buildings8 buildings on the inventory Older homes0% built before 1919 · Irish towns: 3%Monuments3 sites · On the Sites and Monuments Record Questions“How many historic buildings are there in Knocklyon?”

NIAH, the National Inventory of Architectural Heritage · Sites and Monuments Record · CSO, Census 2022 homes by year built

Natural hazardsHazard risk B⁻

Radon reaches above the reference level in about 5.5% of Knocklyon’s homes

For a swim, the nearest bathing water is Sandymount Strand, 9.2 km from Knocklyon, rated sufficient in 2025. No part of Knocklyon is mapped as high landslide susceptibility. Few of its homes stand low beside water.

0%of homes in high-radon areasB⁻Hazard risk Grade

Homes exposed · share of the town’s homes

Low-lying beside water0%

In high-radon areas0%

On high landslide susceptibility0%

Low-lying near a river0%

Low-lying near the coast0%

Share of homes	Knocklyon	Co. Dublin	Ireland
Low-lying near a river	0%	0%	0.5%
In high-radon areas	0%	0%	0%

9.2 km

to Sandymount Strand bathing water (sufficient)

4,445

homes mapped for these shares

Full pageKnocklyon’s flood & hazards pageOpen the page

Low-lying homes0% of homes · Homes low beside water GroundHigh landslide susceptibility · Irish towns 0%Radon0% of homes in high-radon areas Vs. the neighboursAhead of 1 of its 6 graded neighbours

EPA radon map, GSI landslide susceptibility and our low-lying homes estimate from OPW LiDAR.

Keep exploring

Everything we know about Knocklyon

15pages on Knocklyon

The big questions

SafetyA⁻Housing & costDProperty pricesSchoolsHealthA⁺Work & commuteANatural hazardsB⁻5.5% of homes in high-radon areas

Out and about

OutdoorsAttractionsClimateWeather

The story

Who lives hereMedian age 36.9 History8 buildings on the National Inventory Town hallFamous people3 notable people born here

Landmarks

Surveyors for the national inventory recorded 8 buildings in Knocklyon, each of regional importance. Archaeologists have recorded 3 sites here.

All historic buildings →

NIAH: Regional

IdroneCountry house · 1770

NIAH: Regional

Prospect HouseDemesne walls / gates / railings · 1790

NIAH: Regional

Charleville HouseCountry house · 1820

NIAH: Regional

Knocklyon CastleCastle / fortified house · 1820

Famous people from Knocklyon

3 notable people were born in Knocklyon.

See all 3 →

Andrew MoranIrish footballer · born 2003

Robbie GibbonsIrish footballer · born 1991

Ciarán MaherIrish Gaelic footballer · 1962–2012

Knocklyon’s neighbours

The nearest places of 1,000 or more. Boundaries: Tailte Éireann, CSO Urban Areas 2022 and Electoral Divisions.

BallybodenFirhouseEdmondstownRathfarnhamBohernabreenaTempleogueKnocklyon

How the neighbours grade

Town	People	km	Overall	Cost	Safety	Health
Knocklyon	13,854	—	A	D	A⁻	A⁺
Ballyboden	5,246	1	A	D⁻	A⁻	A⁺
Firhouse	12,254	1.3	A⁻	D	A⁻	A⁻
Edmondstown	5,451	1.7	B⁻	D⁻	A⁻	C⁺
Rathfarnham	17,508	2.5	A	D⁻	A⁻	A⁺
Bohernabreena	4,613	2.7	C	B⁻	D	B⁻
Templeogue	18,076	2.8	A⁻	D⁻	B	A⁺

People: CSO, Census 2022. Distances: centre to centre.

Questions about Knocklyon

Has Knocklyon grown?

Knocklyon had 13,854 people at the 2022 census, up from 11,596 in 2016: 19.5% more, against 7.6% in the median of Irish towns.

Is Knocklyon a young town or an old one?

The median age in Knocklyon is 36.9, against 37.6 in the median of Irish towns. 22% of residents are under 15 and 13% are 65 or over.

About Knocklyon

Neighbourhood in Dublin

Knocklyon has 13,854 people, in the area of South Dublin 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)

Population: 13,854 (CSO, Census 2022)
County: Dublin
Council: South Dublin County Council
Local electoral area: Firhouse-Bohernabreena
Dáil constituency: Dublin South-West
Name in Irish: Cnoc Lín
Area: 1.2 sq mi (3.1 km²)
CSO code: ED:SD:FIRHOUSE#knocklyon

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).