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American.irish
The Four Historic Kingdoms

Leinster Province

Cúige Laighean

Leinster, home to twelve counties on the eastern seaboard, is the historic heartland of Irish trade, politics, and literature. From the Bronze Age tombs of Newgrange to Dublin’s publishing houses and Wexford’s maritime harbors, Leinster contributed skilled tradespeople, journalists, and civic leaders to American cities.

12 Historic Counties in Leinster

Counties of Leinster

View All 32 Counties →
Leinster 3 Surnames

County Carlow

Contae Cheatharlach

"The Dolmen County on the banks of the scenic Barrow River."

Capital: Carlow Town Explore Roots →
Leinster 2 Surnames

County Dublin

Contae Bhaile Átha Cliath

"The literary, political, and cultural capital on the banks of the Liffey."

Capital: Dublin City Explore Roots →
Leinster 3 Surnames

County Kildare

Contae Chill Dara

"The Thoroughbred County, consecrated by St. Brigid and rich green plains."

Capital: Naas Explore Roots →
Leinster 3 Surnames

County Kilkenny

Contae Chill Chainnigh

"The Medieval Marble City of soaring castles and hurling legends."

Capital: Kilkenny City Explore Roots →
Leinster 5 Surnames

County Laois

Contae Laoise

"The inland stronghold dominated by the fortress Rock of Dunamase."

Capital: Portlaoise Explore Roots →
Leinster 1 Surnames

County Longford

Contae an Longfoirt

"The heart of the midlands, realm of the ancient Annaly Farrell clan."

Capital: Longford Town Explore Roots →
Leinster 1 Surnames

County Louth

Contae Lú

"The Wee County of epic Cooley legends and Cú Chulainn’s valor."

Capital: Dundalk Explore Roots →
Leinster

County Meath

Contae na Mí

"The Royal County, sacred seat of the High Kings at the Hill of Tara."

Capital: Navan Explore Roots →
Leinster 6 Surnames

County Offaly

Contae Uíbh Fhailí

"Ancient monastic sanctuary on the banks of the mighty Shannon."

Capital: Tullamore Explore Roots →
Leinster 1 Surnames

County Westmeath

Contae na hIarmhí

"The Lake County at the pastoral crossroads of the emerald midlands."

Capital: Mullingar Explore Roots →
Leinster 6 Surnames

County Wexford

Contae Loch Garman

"The cornerstone of 1798 republican freedom and ancestral home of JFK."

Capital: Wexford Town Explore Roots →
Leinster 3 Surnames

County Wicklow

Contae Chill Mhantáin

"The Garden of Ireland, of granite peaks and monastic serenity."

Capital: Wicklow Town Explore Roots →