Lú · Leinster
Louth takes its name from the village of Louth, which is named after Lugh. The county is the setting for much of the Táin Bó Cúailnge. The Vikings named Carlingford Lough and built a longphort at Annagassan in the 9th century. Early in the 12th century the area became part of the O'Carroll kingdom of Airgíalla, and Monasterboice, Mellifont Abbey and the Dominican friary of St Mary Magdalene are among its religious sites.
| Province | Leinster |
|---|---|
| County town | Dundalk |
| Population | 139,100 (2022) |
| Area (km²) | 826 |
| Population change in the Famine, 1841–51 | -16% |
| Daily Irish speakers | 1,048 (2022) |
| Highest point (m) | 589 — Slieve Foye |
| All-Ireland football titles | 3 |
| Townlands | 665 |
| Baronies | 6 |
| Civil parishes | 63 |
| Recorded monuments | 2,461 |
| Ringforts | 218 |
| Holy wells | 51 |
| Historic buildings recorded | 1,347 |
| Castles on the site | 9 |
| Battles and sieges | 5 |
| Workhouses | 3 |
| Railway stations (with an article) | 11 |
| Blue Flag beaches | 3 |
| Olympic medallists born here | 1 |
| Towns on the site | 3 |
| Surnames on the site | 12 |
Every figure is from a page on myireland.ie that names its source — see https://myireland.ie/counties/louth/. Printed from myireland.ie, the atlas of Irish history.