Ireland does not have postcodes. Dublin 5 is the postal district that Killester is in. So your address would finish as: Killester, Dublin 5 Ireland.
Killester College was created in 1955.
Dart Killester was created in 1967.
Killester railway station was created in 1923.
Dublin Food Co-op was created in 1991.
Clondalkin
Kenmare in Co. Kerry is about 200 miles from Dublin.
Ireland does not have post codes. Dublin city and some suburbs have postal districts, but other parts of Dublin do not. Portmarnock does not have a post code. To get something to Portmarnock it would be: Portmarnock, Co. Dublin Ireland. For internet forms, use IE.
Stillorgan is only ever addressed as "Stillorgan, Co. Dublin." Presently it has no postcode.
No its Dublin 5
Dublin.
about 80 miles