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 density was 43.9 people per square mile.
Population trajectory across census years
| Year | Population |
|---|---|
| 1871 | 2,532 |
| 1881 | 2,751 |
| 1891 | 2,821 |
| 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 2 categories. Tables below are collapsible.
Population & families (3 variables)
| Variable | Value |
|---|---|
| POP F | 731 |
| POP M | 763 |
| POP TOT | 1,494 |
Other recorded variables (6 variables)
| Variable | Value |
|---|---|
| CAN BORN F | 717 |
| CAN BORN M | 739 |
| EUR FRENCH | 1,494 |
| FOREIGN BORN F | 14 |
| FOREIGN BORN M | 24 |
| ROMAN CATHOLICS | 1,494 |
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/.