| Timezone | Ireland Time |
| Area | 7,073 km² |
| Population | 4.6 million |
| Population Density | 653.6 / km² |
|
| Postal Codes | A41, A42, A45 (135 more) |
| Area Codes | 1, 21, 22 (55 more) |
| Businesses in Republic of Ireland | 203,369 |
| Cities | 128 |
Postal Code Ranges
| Postal Codes | Administrative Region | Number of postal codes |
|---|
| E21 - E91, P12 - P85, T12 - X91 | Munster | 42 |
| F12 - F91, H53 - H91 | Connacht | 18 |
| F92 - H23 | Ulster | 10 |
Address Example
![Postal Codes formatting]()
138 Postal Codes in Republic of Ireland
| Postal Code | City | Administrative Region | City Population |
|---|
| A41 | — | — | — |
| A42 | Garristown | Leinster | 433 |
| A45 | Oldtown, Dublin | Leinster | 455 |
| A63 | Greystones | Leinster | 13,492 |
| A67 | Wicklow | Leinster | 14,048 |
| A75 | Castleblayney | Ulster | 3,006 |
| A81 | Carrickmacross | Ulster | 3,995 |
| 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 | — | — |
| E21 | Cahir | Munster | 3,578 |
| E25 | Cashel, County Tipperary | Munster | 2,798 |
| E32 | — | — | — |
| E34 | Tipperary | Munster | 4,976 |
| E41 | Thurles | Munster | 7,588 |
| E45 | Nenagh | Munster | 5,500 |
| E53 | Roscrea | Munster | 5,403 |
| E91 | Clonmel | Munster | 17,394 |
| F12 | Knock, County Mayo | Connacht | 811 |
| F23 | Castlebar | Connacht | 12,874 |
| F26 | Ballina, County Mayo | Connacht | 10,087 |
| F28 | Westport, County Mayo | Connacht | 6,200 |
| F31 | Ballinrobe | Connacht | 2,704 |
| F35 | Ballyhaunis | Connacht | 2,312 |
| F42 | Roscommon | Connacht | 5,693 |
| F45 | Castlerea | Connacht | 1,985 |
| F52 | Boyle, County Roscommon | Connacht | 2,199 |
| F56 | Ballymote | Connacht | 1,539 |
| F91 | Sligo | Connacht | 20,228 |
| F92 | Letterkenny | Ulster | 16,901 |
| F93 | Lifford | Ulster | 1,658 |
| F94 | Bundoran | Ulster | 1,865 |
| H12 | Cavan | Ulster | 6,388 |
| H14 | Belturbet | Ulster | 1,277 |
| H16 | Cootehill | Ulster | 1,713 |
| H18 | Monaghan | Ulster | 5,937 |
| H23 | Clones | Ulster | 1,834 |
| H53 | Ballinasloe | Connacht | 6,388 |
| H54 | Tuam | Connacht | 6,130 |
| H62 | Loughrea | Connacht | 5,062 |
| H65 | Athenry | Connacht | 3,950 |
| H71 | Clifden | Connacht | 2,056 |
| H91 | Galway | Connacht | 70,686 |
| K32 | — | — | — |
| 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 |
| N41 | Carrick-on-Shannon | Connacht | 3,980 |
| N91 | Mullingar | Leinster | 17,262 |
| P12 | Macroom | Munster | 3,169 |
| P14 | Crookstown | Leinster | — |
| P17 | Kinsale | Munster | 3,843 |
| P24 | Cobh | Munster | 10,501 |
| P25 | Midleton | Munster | 8,891 |
| P31 | Ballincollig | Munster | — |
| P32 | Rylane | Munster | — |
| P36 | Youghal | Munster | 6,868 |
| P43 | Carrigaline | Munster | 14,775 |
| P47 | Dunmanway | Munster | 1,585 |
| P51 | Mallow, County Cork | Munster | 9,495 |
| P56 | Charleville, County Cork | Munster | 3,672 |
| P61 | Fermoy | Munster | 4,933 |
| P67 | Mitchelstown | Munster | 3,677 |
| P72 | Bandon, County Cork | Munster | 5,492 |
| P75 | Bantry | Munster | 3,348 |
| P81 | Skibbereen | Munster | 2,098 |
| P85 | Clonakilty | Munster | 4,065 |
| 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 |
| R56 | — | — | — |
| R93 | Carlow | Leinster | 20,055 |
| R95 | Kilkenny | Leinster | 21,589 |
| T12 | Cork (city) | Munster | 190,384 |
| T23 | Cork (city) | Munster | 190,384 |
| T34 | Carrignavar | Munster | 499 |
| T45 | Glanmire | Munster | — |
| T56 | Watergrasshill | Munster | 1,161 |
| V14 | Shannon, County Clare | Munster | 9,673 |
| V15 | Kilrush | Munster | 2,712 |
| V23 | — | — | — |
| V31 | Listowel | Munster | 4,143 |
| V35 | Kilmallock | Munster | 1,635 |
| V42 | Newcastle West | Munster | 6,327 |
| V92 | Tralee | Munster | 22,941 |
| V93 | Kenmare | Munster | 2,175 |
| V94 | Limerick | Munster | 90,054 |
| V95 | Milltown Malbay | Munster | 777 |
| W12 | Newbridge, County Kildare | Leinster | 18,860 |
| W23 | Maynooth | Leinster | 12,510 |
| W34 | Monasterevin | Leinster | 3,710 |
| W91 | Naas | Leinster | 20,713 |
| X42 | Kilmacthomas | Munster | 871 |
| X91 | Waterford | Munster | 47,904 |
| 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 |
Administration areas or states in Ireland
Most populated cities in Republic of Ireland
