Derry, Quebec (1871 census)
Derry was a census subdivision in Quebec, recorded in the 1871 Census of Canada with a population of 42. The community is grounded to Wikidata Q63242981. The administrative centroid was at approximately 45.779°N, 75.441°W.
Population
In 1871, Derry had a population of 42: 21 male and 21 female residents.
Population trajectory across census years
| Year | Population |
|---|---|
| 1871 | 42 |
| 1911 | 159 |
| 1921 | 141 |
Cross-year identity established by spatial polygon overlap (SAME_AS chains across the Canadian Census Subdivision boundary files).
Boundary continuity (non-identical overlaps)
Spatial polygon overlaps with adjacent census years where the boundary shifted enough that the SAME_AS chain didn't merge them. These show where the territory came from and went to even when it isn't tracked as the same persistent place.
Earlier boundary forms
- In an earlier year, this CSD was contained in Derry, East and West, 1861 (42.3% share).
Later boundary forms
- In a later year, this CSD became part of Mulgrave, Derry, 1881 (42.3% share).
Neighbouring Census Subdivisions in 1871
In the 1871 census, Derry shared boundaries with:
Full census record, 1871
The 1871 census recorded 16 measurements for this Census Subdivision across 4 categories.
Population & families (1871). This community's record includes 42 total population, 21 females, 21 males, 10 married persons, 8 families, 5 married females, 5 married males, 3 widowed persons, 2 widowed females, 1 widowed males. (Source: 1871 Census of Canada, V1T1.)
Age structure (1871). This community's record includes 29 single persons under 18, 15 single males under 18, 14 single females under 18. (Source: 1871 Census of Canada, V1T1.)
Buildings & housing (1871). This community's record includes 8 inhabited houses, 8 occupied houses. (Source: 1871 Census of Canada, V1T1.)
Agriculture (1871). This community's record includes 35,200 total area (acres). (Source: 1871 Census of Canada, V1T1.)
Identifiers
- TCP UID:
QC094005— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_QC062015— computed from spatial-overlap chains across census years - Wikidata: Q63242981
Sources
Census tabulations from the 1871 Census of Canada, transcribed and georeferenced by the Canadian Peoples / TCP project, hosted at the HGIS Lab, University of Saskatchewan. Persistent place identity computed from spatial-overlap chains across all available census years (1851–1921). Identity grounding to Wikidata performed via the HGIS Canada Knowledge Graph project's MCP-assisted disambiguation pipeline. See the About / Methodology page for the full data pipeline.
Cite this page
Clifford, J. (2026). "Derry, Quebec (1871 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/qc/derry-qc094005-1871/.