Historic Counties Institute

Geography • Identity • Continuity

Reference, evidence, and public education for the historic counties.

Historic counties are the enduring geography. Councils are administration, lieutenancies are ceremonial – neither define the counties.

County Dossier

Leitrim

A quiet county of waterways, hills and woodland margins.

Leitrim is a small north-western county where the Shannon begins to broaden into one of Ireland's defining waterways. Much of its terrain is marked by low hills, woods, loughs and scattered settlement.

Leitrim county reference map

At a glance

Leitrim at a glance

A quiet county of waterways, hills and woodland margins.

Nation Ireland
Formal name County Leitrim
Local name Liatroim
Foundation c.1565
  • Formed from earlier West Bréifne territories
  • Lakes, woods and Iron Mountains
  • Birthplace of John McGahern, novelist
  • Area: 613 sq mi 1,588 km²
  • Population: 31,798
  • County Top: Truskmore Cairn (2,070ft / 631m)

County Geography

Leitrim meets Donegal to the north, Fermanagh to the north-east, Cavan to the east, Longford to the south-east, Roscommon to the south, and Sligo to the west. The county is shaped by the upper Shannon, the hills and iron country of the north-west, and the chain of lakes and lower ground that lead toward the midlands.

Leitrim is easy to recognise through the upper Shannon, wooded hills, and north-western lake country.

Map Reference

View Leitrim on the map

Leitrim is the county. The map shows its boundary, places, and neighbouring counties.

Open Leitrim in the Interactive Map

Places and routes

Carrick-on-Shannon, Manorhamilton, Mohill, Drumshanbo, and Kinlough show the county from its river axis and central lake country to its northern and western sides.

Connections

The county’s routes have long followed the Shannon through Carrick-on-Shannon, crossed the central lake country at Drumshanbo, and run north and west toward Manorhamilton, Mohill, and Kinlough. Movement follows the same river, lake, and hill pattern.

Leitrim landscape or key location
Glencar Waterfall, County Leitrim.

Names

  • Leitrim
  • County Leitrim
  • County of Leitrim
  • Liatroim

Liatroim is the Irish form of Leitrim. County Leitrim is the formal historical style, the county name means the grey ridge, and the older county background lies in Breifne and the frontier landscape between Ulster and Connacht.

Leitrim was a county by the sixteenth century, and the upper Shannon and lake-and-hill geography still keep the historic county’s shape clear.

Support the reference

Enjoying this county guide?

Supporters help fund new county research, articles and map improvements.

County Reference

Explore Leitrim

Open the map to explore Leitrim, or return to the county index to browse other counties.