St. Ambroise, Quebec (1921 census)
St. Ambroise was a census subdivision in Quebec, recorded in the 1921 Census of Canada with a population of 1,459. The community is grounded to Wikidata Q3463285. The administrative centroid was at approximately 46.088°N, 73.582°W.
Population
In 1921, St. Ambroise had a population of 1,459: 727 male and 732 female residents.
Population trajectory across census years
| Year | Population |
|---|---|
| 1861 | 2,189 |
| 1871 | 1,868 |
| 1881 | 1,786 |
| 1891 | 1,706 |
| 1901 | 1,712 |
| 1911 | — |
| 1921 | 1,459 |
Cross-year identity established by spatial polygon overlap (SAME_AS chains across the Canadian Census Subdivision boundary files).
Neighbouring Census Subdivisions in 1921
In the 1921 census, St. Ambroise shared boundaries with:
- St. Alphonse
- St. Charles Borromée
- St. Liguori
- St. Patrice de Rawdon
- Ste. Béatrice
- Ste. Elizabeth
- Ste. Mélanie
Full census record, 1921
The 1921 census recorded 14 measurements for this Census Subdivision across 3 categories.
Population & families (1921). This community's record includes 1,459 total population, 732 females in the population, 729 females born in Canada, 727 males in the population, 726 males born in Canada, 2 females born outside the British Empire, 1 females born in the British Empire (excluding Canada), 1 males born outside the British Empire. (Source: 1921 Census of Canada, V1T16.)
Ethnic origin (1921). This community's record includes 1,437 persons of French origin, 11 persons of British origin (English), 11 persons of British origin (Irish). (Source: 1921 Census of Canada, V1T27.)
Religion (1921). This community's record includes 1,449 Roman Catholics, 8 Anglicans (Church of England), 2 Methodists. (Source: 1921 Census of Canada, V1T38.)
Identifiers
- TCP UID:
QC060003— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_QC060003— computed from spatial-overlap chains across census years - Wikidata: Q3463285
- Wikipedia (EN): https://en.wikipedia.org/wiki/Saint-Roch-des-Aulnaies
- Wikipédia (FR): https://fr.wikipedia.org/wiki/Saint-Roch-des-Aulnaies
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. Ambroise, Quebec (1921 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/qc/st-ambroise-qc060003-1921/.