L
| Town and County | Population |
|---|---|
| Lackaghbeg, Galway | 220 |
| Ladytown, Kildare | 242 |
| Laghy (Laghey), Donegal | 174 |
| Lahinch, Clare | 625 |
| Lanesborough-Ballyleague, Longford and Roscommon | 943 |
| Lawcus, Kilkenny | 273 |
| Laragh, Wicklow | 357 |
| Laytown-Bettystown-Mornington, Meath | 5597 |
| Leap, Cork | 160 |
| Leighlinbridge, Carlow | 646 |
| Leixlip, Kildare | 15016 |
| Lemybrien, Waterford | 210 |
| Letterkenny Town, Donegal | 15231 |
| Lifford, Donegal | 1395 |
| Limerick City, Limerick | 86998 |
| Liscannor, Clare | 108 |
| Liscarroll, Cork | 256 |
| Lisdoonvarna, Clare | 822 |
| Lismore, Waterford | 1182 |
| Listowel Town, Kerry | 3999 |
| Littleton, Tipperary North | 500 |
| Lixnaw, Kerry | 248 |
| Longford Town, Longford | 7557 |
| Longwood, Meath | 480 |
| Loughanure, Donegal | 312 |
| Loughglinn, Roscommon | 182 |
| Loughrea, Galway | 4004 |
| Loughshinny, Fingal | 663 |
| Louisburgh, Mayo | 207 |
| Louth, Louth | 514 |
| Lusk, Fingal | 2456 |
Read more about this topic: List Of Towns In The Republic Of Ireland/2002 Census Records