St. Guillaume d'Upton, Quebec (1921 census)
St. Guillaume d'Upton was a census subdivision in Quebec, recorded in the 1921 Census of Canada with a population of 1,494. The administrative centroid was at approximately 45.877°N, 72.774°W.
Population
In 1921, St. Guillaume d'Upton had a population of 1,494: 763 male and 731 female residents.
Population trajectory across census years
| Year | Population |
|---|---|
| 1901 | 2,778 |
| 1911 | 1,772 |
| 1921 | 1,494 |
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 St. Guillaume d'Upton, 1911 (89.1% share).
Neighbouring Census Subdivisions in 1921
In the 1921 census, St. Guillaume d'Upton shared boundaries with:
- St. Bonaventure d'Upton
- St. David
- St. Edmond de Grantham
- St. Eugène de Grantham
- St. Guillaume, VL
- St. Hugues de Ramsay
- St. Marcel
Full census record, 1921
The 1921 census recorded 9 measurements for this Census Subdivision across 3 categories.
Population & families (1921). This community's record includes 1,494 total population, 763 males in the population, 739 males born in Canada, 731 females in the population, 717 females born in Canada, 24 males born outside the British Empire, 14 females born outside the British Empire. (Source: 1921 Census of Canada, V1T16.)
Ethnic origin (1921). This community's record includes 1,494 persons of French origin. (Source: 1921 Census of Canada, V1T27.)
Religion (1921). This community's record includes 1,494 Roman Catholics. (Source: 1921 Census of Canada, V1T38.)
Identifiers
- TCP UID:
QC100009— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_QC100009— computed from spatial-overlap chains across census years - Wikidata: not yet grounded. This page covers a place whose persistent identity has not yet been linked to a Wikidata entity. Identification is via TCP UID and spatial polygon only.
Sources
Census tabulations from the 1921 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). "St. Guillaume d'Upton, Quebec (1921 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/qc/st-guillaume-d-upton-qc100009-1921/.