Portmarnock

Portmarnock
Port Mearnóg (Irish)
Suburb (village core)
Portmarnock, Dublin
Portmarnock
Location in Ireland
Coordinates: 53°25′18″N 6°08′14″W / 53.4217°N 6.1372°W / 53.4217; -6.1372
CountryIreland
ProvinceLeinster
CountyDublin
Local government areaFingal
Elevation
3 m (9.8 ft)
Population
 (2022)
 • Total
10,750
Eircode routing key
D13

Portmarnock (Irish: Port Mearnóg) is a coastal town in County Dublin, Ireland, north of the city of Dublin, with significant beaches, a modest commercial core and inland residential estates, and two golf courses, including one of Ireland's best known, Portmarnock Golf Club. As of 2022, the population was 10,750, an increase of 13.5% on the 2016 census figure of 9,466.

Portmarnock is also a civil parish in the ancient barony of Coolock. It is in the local government area of Fingal.