Town

Castlegregory

Caisleán Ghriaire

Castlegregory preserves pieces of its vanished castle alongside a railway building and the dune-and-lake habitats around Lough Gill.

Watercolour and fine ink illustration of St Mary Church and Brandon Point from Castlegregory.
Illustration, St Mary Church and Brandon Point from Castlegregory
Recorded locationCastlegregory52.25563° N · 10.02116° 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

  • Caisleán Ghriaire · Irish · main form · validated name
  • Castlegregory · English · main form

Place & story

The castle in scattered stones

Castle Gregory no longer stands, but architectural fragments survive around the village. Archaeologist Laurence Dunne’s report of 1997 testing near Tailor’s Row describes pieces of an inscribed archway and a gun-loop reused in a castle-like feature outside a supermarket. He considered Gregory Hoare a possible builder of the sixteenth-century castle and cited a record of Sir Charles Wilmot taking it in 1602. The test trenches found no castle deposits on the development plot, helping to narrow its possible location without establishing its complete outline. [2]

A corrugated-iron railway station

The former Castlegregory railway station opened in 1891 and closed in 1939. Its modest single-storey building used corrugated iron for both walls and roof, with timber corner posts and sash windows. The architectural inventory recorded the original arrangement still recognisable when surveyed in 2005, although the tracks had been removed. An attached two-storey house may have served the stationmaster. The building is a particularly tangible reminder of the period when a narrow-gauge railway reached this coastal village. [3]

The shallow lake and its toads

Nearby Lough Gill and the dunes north of Castlegregory provide breeding places for natterjack toads. A National Parks and Wildlife Service review describes a shallow lake and seasonal pools forming in hollows among the dunes, with their persistence depending on rainfall. Toads breed in these pools and along parts of the lake shore. The review records natterjacks here from the late 1960s, connecting the village’s coastal setting with a long-running history of wildlife observation and conservation. [4]

Geographic information

Place type
Town
County
Kerry
Civil parish
Killiney
Coordinates
52.25563, -10.02116
Logainm ID
1416501 ↗

Population over time

Castlegregory — Census 2016 settlement footprint

Population within 2016 settlement boundaries

290people · 2022

075150225300 2016: 250 people20162022: 290 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
Castlegregory — Census 2016 settlement footprint — census population
Census yearPopulation
2016250
2022290

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.

Castlegregory, Kerry — Census town, CSO 2006 report

2002–2006: census town

205people · 2006

075150225300 2002: 186 people20022006: 205 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
Castlegregory, Kerry — Census town, CSO 2006 report — census population
Census yearPopulation
2002186
2006205

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

Castlegregory, Kerry — Census town, CSO 1996 report

1991–1996: census town

163people · 1996

050100150200 1991: 159 people19911996: 163 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
Castlegregory, Kerry — Census town, CSO 1996 report — census population
Census yearPopulation
1991159
1996163

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

Castlegregory, Kerry — Census town, CSO 1986 report

1981–1986: census town

161people · 1986

050100150200 1981: 181 people19811986: 161 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
Castlegregory, Kerry — Census town, CSO 1986 report — census population
Census yearPopulation
1981181
1986161

Source: CSO Census 1986, Volume 1, Table 10, page 60. 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.

Castlegregory, Kerry

Published census settlement populations

250people · 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
Castlegregory, Kerry — census population
Census yearPopulation
2011243
2016250

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

Castlegregory, Co Kerry — Census 2022 Built Up Area

Built Up Area population, 2022

370people · 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
Castlegregory, Co Kerry — Census 2022 Built Up Area — census population
Census yearPopulation
2022370

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

Sources & further reading

  1. Logainm.ie — Castlegregory. Place names and geographic record, licensed under CC BY 4.0.
  2. 1997:234 — Castlegregory, licence 97E 0487 · Laurence Dunne, Eachtra Archaeological Projects
  3. Castlegregory Railway Station, register 21303605 · National Inventory of Architectural Heritage
  4. The Natterjack Toad in Ireland: Castlegregory–Lough Gill site review, Irish Wildlife Manuals 10 · National Parks and Wildlife Service
  5. St Mary Church and Brandon Point from Castlegregory illustration: based on a Church-1013464, Dingle Peninsula, Co. Kerry, Ireland by Maoileann. AI-assisted watercolour and ink adaptation; cream paper margins added, incidental clutter omitted and fine details simplified. Licence: CC BY-SA 4.0.

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