Town

Ballycastle

Baile an Chaisil

Ballycastle in north Mayo connects a nineteenth-century coastal village with the discovery of the Céide Fields and stories told about nearby Downpatrick Head.

Watercolour and fine ink illustration of Ballycastle church, County Mayo.
Illustration, Ballycastle church, County Mayo
Recorded locationBallycastle54.27828° N · 9.36656° 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

  • Baile an Chaisil · Irish · main form · validated name
  • Ballycastle · English · main form

Place & story

A village preparing for the coast road

In 1837 Samuel Lewis described Ballycastle's view towards Downpatrick Head and its potential as a sea-bathing resort. New houses had been built, a market place was under construction and a road through the mountains towards Belmullet was being made. Six annual fairs, weekly petty sessions and a penny post to Killala served the surrounding district. His account captures a coastal village investing in buildings and connections, with both agricultural trade and visiting bathers contributing to its prospects. [2]

People & connections

Patrick and Séamus Caulfield's buried landscape

At Belderrig, west of Ballycastle, schoolteacher Patrick Caulfield noticed stone walls beneath the bog while cutting turf in the 1930s. Their position below the peat suggested that they belonged to a much older landscape. His son Séamus later pursued the archaeological investigation that revealed the Céide Fields: field walls, houses and tombs more than five thousand years old. Research traced the hidden walls by probing through the peat. In 1989 Séamus Caulfield, Martin Downes and a local committee began the visitor-centre project; the OPW-designed centre opened in May 1993. [3]

Folklore & tradition

A Ballycastle storyteller's Crom Dubh

Douglas Hyde recorded St Patrick and Crom Dubh from Michael Mac Ruaidhri of Ballycastle. In this version, Crom Dubh lives at Downpatrick Head and opposes the saint with fierce dogs and a great fire. Patrick subdues the dogs, quenches the fire and strikes the cliff with his crozier, separating Crom's dwelling from the mainland to form Dún Briste. The tale also links Patrick's victory with a yearly well pilgrimage. Its named Ballycastle storyteller gives this dramatic account a specific local voice. [4]

Geographic information

Place type
Town
County
Mayo
Barony
Tirawley
Civil parish
Doonfeeny
Coordinates
54.27828, -9.36656
Logainm ID
1412311 ↗

Population over time

Ballycastle — Census 2016 settlement footprint

Population within 2016 settlement boundaries

199people · 2022

075150225300 2016: 219 people20162022: 199 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
Ballycastle — Census 2016 settlement footprint — census population
Census yearPopulation
2016219
2022199

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.

Ballycastle, Mayo — Census town, CSO 2006 report

2002–2006: census town

215people · 2006

075150225300 2002: 249 people20022006: 215 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
Ballycastle, Mayo — Census town, CSO 2006 report — census population
Census yearPopulation
2002249
2006215

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

Ballycastle, Mayo — Census town, CSO 1996 report

1991–1996: census town

234people · 1996

075150225300 1991: 225 people19911996: 234 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
Ballycastle, Mayo — Census town, CSO 1996 report — census population
Census yearPopulation
1991225
1996234

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

Ballycastle, Mayo — Census town, CSO 1986 report

1981–1986: census town

200people · 1986

075150225300 1981: 203 people19811986: 200 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
Ballycastle, Mayo — Census town, CSO 1986 report — census population
Census yearPopulation
1981203
1986200

Source: CSO Census 1986, Volume 1, Table 10, page 67. 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.

Ballycastle, Mayo

Published census settlement populations

219people · 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
Ballycastle, Mayo — census population
Census yearPopulation
2011234
2016219

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

Ballycastle, Co Mayo — Census 2022 Built Up Area

Built Up Area population, 2022

220people · 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
Ballycastle, Co Mayo — Census 2022 Built Up Area — census population
Census yearPopulation
2022220

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

Sources & further reading

  1. Logainm.ie — Ballycastle. Place names and geographic record, licensed under CC BY 4.0.
  2. Ballycastle, Tyrawley: A Topographical Dictionary of Ireland (1837) · Samuel Lewis
  3. History of Céide Fields · Museums of Mayo; Céide Fields
  4. Legends of Saints and Sinners: St Patrick and Crom Dubh · Douglas Hyde, recording Michael Mac Ruaidhri of Ballycastle
  5. Ballycastle church, County Mayo illustration: based on a Ballycastle Church by Liz McCabe. 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.