Town

Mullaghmore

An Mullach Mór

Mullaghmore’s harbour and nearby country house reveal nineteenth-century ambitions, while the coast also holds the memory of the 1979 bombing.

Watercolour and fine ink illustration of Classiebawn Castle, Mullaghmore.
Illustration, Classiebawn Castle, Mullaghmore
Recorded locationMullaghmore54.46663° N · 8.45912° WInteractive map supplied by OpenStreetMap.
Recorded place location · Logainm.ie

The name

These Irish name elements are associated with this record in the Logainm glossary.

An element’s translation is a clue, rather than a complete explanation of the name. Its form and meaning depend on local history and the full Irish name.

Recorded forms

  • An Mullach Mór · Irish · main form · validated name
  • Mullaghmore · English · main form

Place & story

Alexander Nimmo’s stone harbour

Mullaghmore Harbour was sponsored by Henry John Temple, Viscount Palmerston, and designed by engineer Alexander Nimmo. The architectural inventory records a pier built in 1828 and extended over the following years to 1842. High seawalls protect the eastern and northern piers, with recessed flights of steps giving access to the water. Differences in the stonework reveal alterations within a structure that remains central to the village’s layout and maritime identity. [2]

A nineteenth-century castle silhouette

Classiebawn Castle stands on an elevated site southwest of the village. It is a Victorian country house, designed by James Rawson Carroll in the Scottish Baronial style, rather than a surviving medieval fortress. A tall central tower, projecting corner turret, gables and parapets create its distinctive outline. The architectural inventory dates the building to 1874 and records fine dressed stone around openings and at the corners. Its dramatic coastal position forms part of a deliberately composed estate landscape. [3]

The people killed in 1979

On 27 August 1979, an IRA bomb exploded aboard the Shadow V off Mullaghmore. Lord Louis Mountbatten, his fourteen-year-old grandson Nicholas Knatchbull and fifteen-year-old Paul Maxwell were killed; the Dowager Baroness Brabourne died later from her injuries. Mountbatten regularly spent family holidays at Classiebawn. RTÉ’s reports of subsequent commemorations document the continuing local remembrance of all four victims, including a silence at the cliff top on the thirtieth anniversary. The harbour was where the dead and injured were brought ashore. [4] [5]

Geographic information

Place type
Town
County
Sligo
Barony
Carbury
Civil parish
Ahamlish
Coordinates
54.46663, -8.45912
Logainm ID
1416779 ↗

Population over time

Mullaghmore — Census 2016 settlement footprint

Population within 2016 settlement boundaries

172people · 2022

050100150200 2016: 136 people20162022: 172 people2022

Both counts use the 2016 settlement boundary, allowing like-for-like comparison. CSO supplies the 2022 count on this older boundary for comparison only. The official 2022 Built Up Area has different boundaries.

View population figures
Mullaghmore — Census 2016 settlement footprint — census population
Census yearPopulation
2016136
2022172

Source: CSO Census 2022 Profile 1 — Appendix Table 1: Census 2022 De Facto Population for the 2016 Towns · Supporting source 1. CC BY 4.0. Retrieved 2026-10-25.

Mullaghmore, Sligo — Census town, CSO 2006 report

2002–2006: census town

147people · 2006

050100150200 2002: 137 people20022006: 147 people2006

These are the historical areas published in the 2006 census report. Boundaries may differ between censuses and from modern settlements. Legal towns, environs and suburbs are shown separately; none has been combined into a modern settlement total.

View population figures
Mullaghmore, Sligo — Census town, CSO 2006 report — census population
Census yearPopulation
2002137
2006147

Source: CSO C0112 — Alphabetical list of towns, populations 2002 and 2006 · Supporting source 1. CC BY 4.0. Retrieved 2026-10-25.

Mullaghmore, Sligo — Census town, CSO 1996 report

1991–1996: census town

164people · 1996

050100150200 1991: 124 people19911996: 164 people1996

These are the historical areas published in the 1996 census report. Boundaries may differ between censuses and from modern settlements. Legal towns, environs and suburbs are shown separately; none has been combined into a modern settlement total.

View population figures
Mullaghmore, Sligo — Census town, CSO 1996 report — census population
Census yearPopulation
1991124
1996164

Source: CSO A0112 — Alphabetical list of towns, populations 1991 and 1996 · Supporting source 1. CC BY 4.0. Retrieved 2026-10-25.

Mullaghmore, Sligo — Census town, CSO 1986 report

1981–1986: census town

147people · 1986

050100150200 1981: 150 people19811986: 147 people1986

Figures cover the historical town area printed in the 1986 report. Boundaries may have changed between censuses. Legal town, environs and suburb totals remain separate and differ from modern settlement boundaries.

View population figures
Mullaghmore, Sligo — Census town, CSO 1986 report — census population
Census yearPopulation
1981150
1986147

Source: CSO Census 1986, Volume 1, Table 10, page 68. Creative Commons Attribution 4.0 International (CC BY 4.0). Retrieved 2026-10-25.

Other census areas and years

These figures use different area definitions. Read the boundary note before comparing them.

Mullaghmore, Sligo

Published census settlement populations

136people · 2016

Settlement boundaries changed during this period. Differences may reflect boundary changes as well as population change. Where a 2011 legal-town-and-environs count is shown, it has not been recalculated onto the 2016 settlement boundary.

View population figures
Mullaghmore, Sligo — census population
Census yearPopulation
2011128
2016136

Source: CSO E2016 — Population and Actual and Percentage Change 2011 to 2016. CC BY 4.0. Retrieved 2026-10-25.

Mullaghmore, Co Sligo — Census 2022 Built Up Area

Built Up Area population, 2022

172people · 2022

Built Up Areas use a new land-use definition. Their population figures cannot be compared directly with Census 2016 settlement counts.

View population figures
Mullaghmore, Co Sligo — Census 2022 Built Up Area — census population
Census yearPopulation
2022172

Source: CSO F1015 — Population, Census 2022 Built Up Areas. CC BY 4.0. Retrieved 2026-10-25.

Sources & further reading

  1. Logainm.ie — Mullaghmore. Place names and geographic record, licensed under CC BY 4.0.
  2. Mullaghmore Harbour, register 32301002 · National Inventory of Architectural Heritage
  3. Classiebawn Castle, register 32400204 · National Inventory of Architectural Heritage
  4. Memorial services mark 1979 bombings, 27 August 2009 · RTÉ News
  5. UK–Ireland relations five years after Mullaghmore visit, 19 May 2020 · Tommie Gorman, RTÉ News
  6. Classiebawn Castle, Mullaghmore illustration: based on a Classiebawn Castle, Mullaghmore by Kent Wang. AI-assisted watercolour and ink adaptation; cream paper margins added, incidental clutter omitted and fine details simplified. Licence: CC BY-SA 2.0; adapted illustration distributed under the same licence.

Name record retrieved 2026-10-25 · Source record modified 2025-01-10. How this page was prepared.