Yamachiche, Quebec (1921 census)
Yamachiche was a census subdivision in Quebec, recorded in the 1921 Census of Canada with a population of 1,615. The administrative centroid was at approximately 46.304°N, 72.834°W.
Population
In 1921, Yamachiche had a population of 1,615: 842 male and 773 female residents. Population density was 43.8 people per square mile.
Population trajectory across census years
| Year | Population |
|---|---|
| 1851 | 4,123 |
| 1861 | 3,213 |
| 1871 | 2,365 |
| 1881 | 2,740 |
| 1891 | 2,025 |
| 1901 | 2,195 |
| 1911 | 1,845 |
| 1921 | 1,615 |
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 Yamachiche, 1911 (87.9% share).
Neighbouring Census Subdivisions in 1921
In the 1921 census, Yamachiche shared boundaries with:
- Louiseville (Rivière du Loup)
- Pointe du Lac
- St. Barnabé
- St. Léon
- St. Sévère
- St. Thomas de Caxton
- Yamachiche, Village
Full census record, 1921
The 1921 census recorded 11 measurements for this Census Subdivision across 2 categories. Tables below are collapsible.
Population & families (3 variables)
| Variable | Value |
|---|---|
| POP F | 773 |
| POP M | 842 |
| POP TOT | 1,615 |
Other recorded variables (8 variables)
| Variable | Value |
|---|---|
| BRIT ENG | 13 |
| CAN BORN F | 768 |
| CAN BORN M | 841 |
| EUR FRENCH | 1,599 |
| FOREIGN BORN F | 5 |
| FOREIGN BORN M | 1 |
| ROMAN CATHOLICS | 1,614 |
| UNSPECIFIED | 3 |
Identifiers
- TCP UID:
QC093011— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_QC093011— 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). "Yamachiche, Quebec (1921 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/qc/yamachiche-qc093011-1921/.