Townland

Castlereagh

An Caisleán Riabhach

Castlereagh is a townland in Down. Explore its recorded names and geographic context.

Recorded locationCastlereagh54.57026° N · 5.87566° 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 Caisleán Riabhach · Irish · main form · non-validated name
  • Castlereagh · English · main form

Geographic information

Place type
Townland
County
Down
Civil parish
Knockbreda
Coordinates
54.57026, -5.87566
Mapped area
1.69 km²
Logainm ID
66190 ↗

People & family history

Census figures refer to the matched historical census area for each year. Boundaries and spellings can change over time.

1901 census

128People recorded
24Households recorded

Most frequent surnames in this year’s matched records

  • McClune 14
  • Walmsley 11
  • Campbell 10
  • Millar 10
  • Hewitt 7
Explore the 1901 records ↗

1926 census

This year is outside the available dataset’s coverage. This does not indicate a population of zero.

Sources & further reading

  1. Logainm.ie — Castlereagh. Place names and geographic record, licensed under CC BY 4.0.
  2. Boundary geometry retains its source attribution and licence in the downloadable geographic record. Map tiles © OpenStreetMap contributors.

Name record retrieved 2026-10-25 · Source record modified 2019-06-27. How this page was prepared.