Sinclair, Ontario (1921 census)
Sinclair was a census subdivision in Ontario, recorded in the 1921 Census of Canada with a population of 110. The administrative centroid was at approximately 45.430°N, 79.065°W.
Population
In 1921, Sinclair had a population of 110: 65 male and 45 female residents.
Population trajectory across census years
| Year | Population |
|---|---|
| 1901 | 271 |
| 1921 | 110 |
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 Franklin & Sinclair, 1911 (49.8% share).
Neighbouring Census Subdivisions in 1921
In the 1921 census, Sinclair shared boundaries with:
Full census record, 1921
The 1921 census recorded 17 measurements for this Census Subdivision across 3 categories.
Population & families (1921). This community's record includes 110 total population, 65 males in the population, 57 males born in Canada, 45 females in the population, 41 females born in Canada, 8 males born in the British Empire (excluding Canada), 4 females born in the British Empire (excluding Canada). (Source: 1921 Census of Canada, V1T16.)
Ethnic origin (1921). This community's record includes 57 persons of British origin (English), 35 persons of British origin (Irish), 11 persons of British origin (Scotch / Scottish), 6 persons of Dutch origin, 1 persons of French origin. (Source: 1921 Census of Canada, V1T27.)
Religion (1921). This community's record includes 65 Methodists, 28 Anglicans (Church of England), 14 Presbyterians, 2 Roman Catholics, 1 Christians (general / no denomination specified). (Source: 1921 Census of Canada, V1T38.)
Identifiers
- TCP UID:
ON129018— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_ON129018— 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). "Sinclair, Ontario (1921 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/on/sinclair-on129018-1921/.