List of Irish counties by area in the context of "County Louth"

County Armagh (Irish: Contae Ard Mhacha [ˌaːɾˠd̪ˠ ˈwaxə]) is one of the six counties of Northern Ireland and one of the traditional thirty-two counties of Ireland. It is located in the province of Ulster and adjoins the southern shore of Lough Neagh. It borders the Northern Irish counties of Tyrone to the west and Down to the east. The county borders Louth and Monaghan to the south and southwest, which are in the Republic of Ireland. It is named after its county town, Armagh, which derives from the Irish Ard Mhacha, meaning "Macha's height". Macha was a sovereignty goddess in Irish mythology and is said to have been buried on a wooded hill around which the town of Armagh grew. County Armagh is colloquially known as the "Orchard County" because of its many apple orchards.

The county covers an area of 1,327 km (512 sq mi), making it the smallest of Northern Ireland's six counties by size and the sixth-smallest county on the island of Ireland. With a population of 194,394 as of the 2021 census, it is the fourth-most populous county in both Northern Ireland and Ulster. It is the 10th most populous of Ireland's 32 traditional counties, as well as the fifth-most densely populated. In addition to the city of Armagh and the western portion of the city of Newry, notable towns in the county include Lurgan, Portadown and Craigavon.

County Meath (/miːð/ MEEDH; Irish: Contae na Mí or simply an Mhí, lit. 'middle') is a county in the Eastern and Midland Region of Ireland, within the province of Leinster. It is bordered by County Dublin to the southeast, Louth to the northeast, Kildare to the south, Offaly to the southwest, Westmeath to the west, Cavan to the northwest, and Monaghan to the north. To the east, Meath also borders the Irish Sea along a narrow strip between the rivers Boyne and Delvin, giving it the second shortest coastline of any county. Meath County Council is the local authority for the county.

Meath is the 14th-largest of Ireland's 32 traditional counties by land area, and the 8th-most populous, with a total population of 220,826 according to the 2022 census. The county town and largest settlement in Meath is Navan, located in the centre of the county along the River Boyne. Other towns in the county include Trim, Kells, Laytown, Ashbourne, Dunboyne, Slane and Bettystown.

County Carlow (/ˈkɑːrloʊ/ KAR-loh; Irish: Contae Cheatharlach) is a county located in the Southern Region of Ireland, within the province of Leinster. Carlow is the second smallest and the third least populous of Ireland's 32 traditional counties. Carlow County Council is the governing local authority.

The county is named after the town of Carlow, which lies on the River Barrow and is both the county town and largest settlement, with over 40% of the county's population. Much of the remainder of the population also reside within the Barrow valley, in towns such as Leighlinbridge, Bagenalstown, Tinnahinch, Borris and St Mullins. Carlow shares a border with Kildare and Laois to the north, Kilkenny to the west, Wicklow to the east and Wexford to the southeast.

County Kerry (Irish: Contae Chiarraí) is a county on the southwest coast of Ireland, within the province of Munster and the Southern Region. It is bordered by two other counties; Limerick to the east, and Cork to the south and east. It is separated from Clare to the north by the Shannon Estuary. With an area of 4,807 square kilometres (1,856 sq mi) and a population of 156,458 as of 2022, it is the 5th largest of Ireland's 32 counties by land area, and the 15th most populous. The governing local authority is Kerry County Council.

Bounded by the Atlantic Ocean, Kerry is Ireland's most westerly county. Its rugged coastline stretches for 886 kilometres (551 miles) and is characterised by bays, sea cliffs, beaches and many small offshore islands, of which the Blaskets and the Skelligs are the most notable. The county's peninsulas have a hilly to mountainous topography, with the MacGillycuddy's Reeks on Iveragh rising to over 1,000 m (3,300 ft). By contrast, its interior regions are mostly flat, interspersed with low mountain ranges such as the Stacks and the Mullaghareirks. The climate of Kerry is dominated by the North Atlantic Current and is usually mild and humid, with abundant precipitation. This allows for the growth of a wide variety of temperate and sub-tropical plants not typically found at such northerly latitudes.

County Roscommon (Irish: Contae Ros Comáin) is a county in Ireland. It is part of the province of Connacht and the Northern and Western Region. It is the 11th largest Irish county by area and 26th most populous. Its county town and largest town is Roscommon. Roscommon County Council is the local authority for the county. The population of the county was 70,259 as of the 2022 census.