St. Grégoire de Montmorency, Quebec (1921 census)
St. Grégoire de Montmorency was a census subdivision in Quebec, recorded in the 1921 Census of Canada with a population of 1,463. The community is grounded to Wikidata Q137754615. The administrative centroid was at approximately 46.873°N, 71.160°W.
Population
In 1921, St. Grégoire de Montmorency had a population of 1,463: 674 male and 789 female residents. Population density was 6426.8 people per square mile.
Population trajectory across census years
| Year | Population |
|---|---|
| 1911 | 2,710 |
| 1921 | 1,463 |
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 Montmorency, VL, 1911 (29.0% share).
Neighbouring Census Subdivisions in 1921
In the 1921 census, St. Grégoire de Montmorency shared boundaries with:
Full census record, 1921
The 1921 census recorded 19 measurements for this Census Subdivision across 2 categories. Tables below are collapsible.
Population & families (3 variables)
| Variable | Value |
|---|---|
| POP F | 789 |
| POP M | 674 |
| POP TOT | 1,463 |
Other recorded variables (16 variables)
| Variable | Value |
|---|---|
| ANGLICANS | 1 |
| BAPTISTS | 2 |
| BRIT BORN F | 13 |
| BRIT BORN M | 12 |
| BRIT ENG | 31 |
| BRIT IRISH | 3 |
| CAN BORN F | 765 |
| CAN BORN M | 654 |
| EUR FRENCH | 1,426 |
| EUR ITALIAN | 3 |
| FOREIGN BORN F | 11 |
| FOREIGN BORN M | 8 |
| METHODISTS | 1 |
| PRESBYTERIANS | 1 |
| PROTESTANTS | 13 |
| ROMAN CATHOLICS | 1,445 |
Identifiers
- TCP UID:
QC081014— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_QC081014— computed from spatial-overlap chains across census years - Wikidata: Q137754615
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. Grégoire de Montmorency, Quebec (1921 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/qc/st-gr-goire-de-montmorency-qc081014-1921/.