Longueuil, Ontario (1921 census)
Longueuil was a census subdivision in Ontario, recorded in the 1921 Census of Canada with a population of 970. The administrative centroid was at approximately 45.585°N, 74.739°W.
Population
In 1921, Longueuil had a population of 970: 485 male and 485 female residents.
Population trajectory across census years
| Year | Population |
|---|---|
| 1851 | 1,406 |
| 1861 | 1,611 |
| 1871 | 1,835 |
| 1881 | 1,162 |
| 1891 | 1,172 |
| 1901 | 1,060 |
| 1911 | 1,068 |
| 1921 | 970 |
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, Longueuil shared boundaries with:
Full census record, 1921
The 1921 census recorded 16 measurements for this Census Subdivision across 3 categories.
Population & families (1921). This community's record includes 970 total population, 485 females in the population, 485 males in the population, 481 females born in Canada, 481 males born in Canada, 4 females born outside the British Empire, 4 males born outside the British Empire. (Source: 1921 Census of Canada, V1T16.)
Ethnic origin (1921). This community's record includes 818 persons of French origin, 84 persons of British origin (Irish), 35 persons of British origin (Scotch / Scottish), 33 persons of British origin (English). (Source: 1921 Census of Canada, V1T27.)
Religion (1921). This community's record includes 828 Roman Catholics, 90 Methodists, 34 Anglicans (Church of England), 17 Presbyterians, 1 Baptists. (Source: 1921 Census of Canada, V1T38.)
Identifiers
- TCP UID:
ON139005— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_ON139005— 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). "Longueuil, Ontario (1921 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/on/longueuil-on139005-1921/.