Town

Trim

Baile Átha Troim

The Boyne crossing became a centre of Anglo-Norman power. Around its castle survive traces of religious houses, pilgrimage and the countryside known to Jonathan Swift.

Watercolour and fine ink illustration of Trim Castle in its medieval prime in Trim.
Illustration, Trim Castle — artistic reconstruction, c.1250
Recorded locationTrim53.55628° N · 6.78233° WInteractive map supplied by OpenStreetMap.
Recorded place location · Logainm.ie

The name

A reliable full-name meaning has not been established here. The recorded Irish and English forms are given without an unsupported translation.

Recorded forms

  • Baile Átha Troim · Irish · main form · validated name
  • Trim · English · main form

Place & story

The crossing and the lordship

Meath County Council explains Áth Truim as the ford of the elder trees, placing the name within the Boyne landscape. Hugh de Lacy made Trim a centre of his lordship of Meath after the Anglo-Norman arrival. The early timber fortification was destroyed and replaced in stone. The river crossing and the seat of political power developed together. [2] [3]

A keep with twenty sides

The castle’s great keep has a cruciform plan and twenty sides. The Office of Public Works describes a three-storey central fortification protected by a ditch, curtain wall and moat. Its mass reflects a building campaign continued by Hugh de Lacy’s successors. The illustration on this page is an artistic reconstruction of the medieval castle. [4]

Folklore & tradition

The town as a place of pilgrimage

The urban archaeological survey records fifteenth-century pilgrims visiting a celebrated wooden image of Our Lady at Trim. The Yellow Steeple survives from St Mary's Abbey; Meath County Council dates it to 1368 and connects its name with the stone's warm colour in evening light. [3] [5]

People & connections

Jonathan Swift at nearby Laracor

Jonathan Swift served as vicar at Laracor, near Trim, in the early eighteenth century. The council’s heritage account connects his time in the district with the Journal to Stella. Across the river and downstream, the remains at Newtown Trim add another distinct ecclesiastical settlement to the landscape Swift knew. [5]

Geographic information

Place type
Town
County
Meath
Civil parish
Trim
Civil parish
Laracor
Civil parish
Newtownclonbun
Coordinates
53.55628, -6.78233
Logainm ID
1416699 ↗

Population over time

Trim — Census 2016 settlement footprint

Population within 2016 settlement boundaries

9,523people · 2022

02.5K5K7.5K10K 2016: 9,194 people20162022: 9,523 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
Trim — Census 2016 settlement footprint — census population
Census yearPopulation
20169,194
20229,523

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.

Trim Legal Town, Meath — Legal town, CSO 2006 report

2002–2006: legal town

1,375people · 2006

05001K1.5K2K 2002: 1,447 people20022006: 1,375 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
Trim Legal Town, Meath — Legal town, CSO 2006 report — census population
Census yearPopulation
20021,447
20061,375

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

Trim Environs, Meath — Town environs only, CSO 2006 report

2002–2006: town environs only

5,495people · 2006

01.5K3K4.5K6K 2002: 4,447 people20022006: 5,495 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
Trim Environs, Meath — Town environs only, CSO 2006 report — census population
Census yearPopulation
20024,447
20065,495

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

Trim Legal Town, Meath — Legal town, CSO 1996 report

1991–1996: legal town

1,740people · 1996

05001K1.5K2K 1991: 1,784 people19911996: 1,740 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
Trim Legal Town, Meath — Legal town, CSO 1996 report — census population
Census yearPopulation
19911,784
19961,740

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

Trim Environs, Meath — Town environs only, CSO 1996 report

1991–1996: town environs only

2,665people · 1996

07501.5K2.3K3K 1991: 2,401 people19911996: 2,665 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
Trim Environs, Meath — Town environs only, CSO 1996 report — census population
Census yearPopulation
19912,401
19962,665

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

Trim, Meath — Town environs only, CSO 1986 report

1981–1986: town environs only

2,157people · 1986

07501.5K2.3K3K 1981: 1,455 people19811986: 2,157 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
Trim, Meath — Town environs only, CSO 1986 report — census population
Census yearPopulation
19811,455
19862,157

Source: CSO Census 1986, Volume 1, Table 10, page 51. Creative Commons Attribution 4.0 International (CC BY 4.0). Retrieved 2026-10-25.

Trim, Meath — Legal town, CSO 1986 report

1981–1986: legal town

1,967people · 1986

07501.5K2.3K3K 1981: 2,144 people19811986: 1,967 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
Trim, Meath — Legal town, CSO 1986 report — census population
Census yearPopulation
19812,144
19861,967

Source: CSO Census 1986, Volume 1, Table 10, page 51. 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.

Trim, Meath — 2011 legal town and environs; 2016 census settlement

Published census settlement populations

9,194people · 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
Trim, Meath — 2011 legal town and environs; 2016 census settlement — census population
Census yearPopulation
20118,268
20169,194

Source: CSO E2016 — Population and Actual and Percentage Change 2011 to 2016 · Supporting source 1. CC BY 4.0. Retrieved 2026-10-25.

Trim, Co Meath — Census 2022 Built Up Area

Built Up Area population, 2022

9,563people · 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
Trim, Co Meath — Census 2022 Built Up Area — census population
Census yearPopulation
20229,563

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

Sources & further reading

  1. Logainm.ie — Trim. Place names and geographic record, licensed under CC BY 4.0.
  2. Trim Porchfield and River Walk · Meath County Council
  3. County Meath Urban Archaeology Survey — Trim · 1985
  4. Trim Castle — Office of Public Works
  5. Trim Heritage Town — Meath County Council
  6. Trim Castle in its medieval prime illustration: based on a reference photograph by Zairon. AI-assisted watercolour and ink adaptation; warm cream paper margins; incidental modern clutter removed and fine details simplified. Licence: CC BY 4.0.

Name record retrieved 2026-10-25 · Source record modified 2026-09-22. How this page was prepared.