| Timezone | Ireland Time |
| Area | 1,900 km² |
| Population | 2.5 million |
| Population Density | 1,318 / km² |
|
| Postal Codes | A42, A45, A63 (62 more) |
| Area Codes | 1, 402, 404 (15 more) |
| Businesses in Leinster | 101,283 |
| Cities | 57 |
65 Postal Codes in Leinster
| Postal Code | City | Administrative Region | City Population |
|---|
| A42 | Garristown | Leinster | 433 |
| A45 | Oldtown, Dublin | Leinster | 455 |
| A63 | Greystones | Leinster | 13,492 |
| A67 | Wicklow | Leinster | 14,048 |
| A82 | Kells, County Meath | Leinster | 4,820 |
| A83 | Enfield, County Meath | Leinster | 2,929 |
| A84 | Ashbourne, County Meath | Leinster | 11,355 |
| A85 | Dunshaughlin | Leinster | 3,903 |
| A86 | Dunboyne | Leinster | 6,959 |
| A91 | Dundalk | Leinster | 33,428 |
| A92 | Drogheda | Leinster | 33,441 |
| A94 | Blackrock, Dublin | Leinster | 8,821 |
| A96 | Dún Laoghaire | Leinster | 185,400 |
| A98 | Bray | Leinster | 6,477 |
| C15 | Trim, County Meath | Leinster | 1,800 |
| D01 | South Dublin | — | — |
| D02 | South Dublin | — | — |
| D03 | South Dublin | — | — |
| D04 | South Dublin | — | — |
| D05 | South Dublin | — | — |
| D06 | South Dublin | — | — |
| D07 | South Dublin | — | — |
| D08 | South Dublin | — | — |
| D09 | South Dublin | — | — |
| D10 | South Dublin | — | — |
| D11 | South Dublin | — | — |
| D12 | South Dublin | — | — |
| D13 | South Dublin | — | — |
| D14 | South Dublin | — | — |
| D15 | South Dublin | — | — |
| D16 | South Dublin | — | — |
| D17 | South Dublin | — | — |
| D18 | South Dublin | — | — |
| D20 | South Dublin | — | — |
| D22 | South Dublin | — | — |
| D24 | South Dublin | — | — |
| D6W | South Dublin | — | — |
| K34 | Loughshinny | Leinster | 670 |
| K36 | Malahide | Leinster | 15,846 |
| K45 | Lusk, Dublin | Leinster | 7,022 |
| K56 | Rush, Dublin | Leinster | 9,231 |
| K67 | Swords, Dublin | Leinster | 36,924 |
| K78 | Lucan, Dublin | Leinster | 15,269 |
| N37 | Athlone | Leinster | 15,951 |
| N39 | Longford | Leinster | 7,787 |
| N91 | Mullingar | Leinster | 17,262 |
| P14 | Crookstown | Leinster | — |
| R14 | Athy | Leinster | 12,855 |
| R21 | Muine Bheag | Leinster | 3,033 |
| R32 | Port Laoise | Leinster | 13,622 |
| R35 | Tullamore | Leinster | 11,575 |
| R42 | Birr | Leinster | 4,549 |
| R45 | Edenderry | Leinster | 4,890 |
| R51 | Kildare | Leinster | 8,142 |
| R93 | Carlow | Leinster | 20,055 |
| R95 | Kilkenny | Leinster | 21,589 |
| W12 | Newbridge, County Kildare | Leinster | 18,860 |
| W23 | Maynooth | Leinster | 12,510 |
| W34 | Monasterevin | Leinster | 3,710 |
| W91 | Naas | Leinster | 20,713 |
| Y14 | Arklow | Leinster | 11,761 |
| Y21 | Enniscorthy | Leinster | 9,709 |
| Y25 | Gorey | Leinster | 6,040 |
| Y34 | New Ross | Leinster | 6,695 |
| Y35 | Loch Garman | Leinster | 19,913 |
Address Example
Most populated cities in Leinster
