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County Dublin · Leinster

About Portmarnock

Portmarnock is a village in County Dublin, 12 km north-east of Dublin. It stands on the R106, R123 and R124. The map gives it 4,040 buildings and 92 named streets, with 73 places named on them in 56 kinds, and 462 things to see in and around it. By the number of buildings on the map it is the 31th largest of the 50 settlements this site covers in County Dublin.

Where
12 km north-east of Dublin
Position
53.4220° N, 6.1358° W
Roads
R106, R123, R124, L2150 and L2160
Governed
Dublin County Council, in the province of Leinster
On the model
4,040 buildings, 92 streets, 73 named places in 56 kinds
Test Photograph Portmarnock (1139742570)
Test Photograph Portmarnock (1139742570)·William Murphy from Dublin, Ireland, CC BY-SA 2.0 via Wikimedia Commons
Test Photograph Portmarnock (1138901989)
Test Photograph Portmarnock (1138901989)·William Murphy from Dublin, Ireland, CC BY-SA 2.0 via Wikimedia Commons

Portmarnock in order

27 of the places on this map carry a date on Wikidata, running from the 800s to 2020. That is not a history of Portmarnock, and it is not written as one: it is the order in which the things still standing were built, which is the part a map can actually tell you.

the 800s2020Book of KellsCasino Model Railway Museum
The eighth century
  • the 800sBook of KellsAttractions · 12 km from the centre · Memory of the World International Register
The twelfth century
  • 1200Swords CastleCastles · 7.0 km from the centre · national monument of Ireland
The thirteenth century
The eighteenth century
The nineteenth century
The twentieth century
The twenty-first century

County Dublin since 1841

Every census of the county, which is the only way to see what happened to rural Ireland: the fall from the Famine runs for a century, and the recovery is recent.

1,458,154372,77318412022

Source: Central Statistics Office, table F1001 'Population at Each Census', read through the PxStat API, read 2026-09-20.

What to see

Closest to the centre first, with how far each one is.

All 462 things to see

Getting around

By road

The map records the R106, R123, R124, L2150 and L2160 running through Portmarnock. 4 car parks on the map.

By bus or train

There is a station in the settlement. 13 lines call at 42 stops here. Plan a journey for the day and time you are going.

Schools and services

3 school or colleges on the map: H5 computer lab, Portmarnock Community School and Saint Marnock's National School.

Questions people ask

Where is Portmarnock?
In County Dublin, in the province of Leinster, 12 km north-east of Dublin and 12 km from Dublin, on the R106, R123 and R124.
How big is Portmarnock?
No census figure is on record for it here. On the map it is 4,040 buildings, 92 named streets and 73 named places, which by building count makes it the 31th largest of the 50 settlements this site covers in County Dublin.
What is there to see in Portmarnock?
462 things the map records in and around it, the closest being Strand Mill Ruins, Ardilaun and St. Marnocks Bay Playground.
How do you get to Portmarnock?
13 bus and train lines call at 42 stops here in the published timetable, run by Bus Átha Cliath – Dublin Bus, Go-Ahead Ireland and Iarnród Éireann / Irish Rail. There is a station in the settlement itself.
Has County Dublin grown or shrunk?
The census counted 372,773 people in the county in 1841 and 1,458,154 in 2022.
4,040
buildings on the model
92
named streets
73
named places
56
kinds of place

Buildings, streets, places, roads and position are OpenStreetMap, counted by this site rather than quoted from anywhere. Population, elevation, area and twinning are structured claims on Wikidata. County population is the Central Statistics Office. Journeys are the National Transport Authority’s published timetable. Every sentence on this page is written from those numbers; none of it is copied from a description of the place.

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