Cardiff, Ontario (1921 census)
Cardiff was a census subdivision in Ontario, recorded in the 1921 Census of Canada with a population of 553. The community is grounded to Wikidata Q115261025. The administrative centroid was at approximately 44.990°N, 78.093°W.
Population
In 1921, Cardiff had a population of 553: 318 male and 235 female residents. Population density was 4.6 people per square mile.
Population trajectory across census years
| Year | Population |
|---|---|
| 1881 | 497 |
| 1891 | 612 |
| 1901 | 698 |
| 1911 | 518 |
| 1921 | 553 |
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, Cardiff shared boundaries with:
Full census record, 1921
The 1921 census recorded 26 measurements for this Census Subdivision across 2 categories. Tables below are collapsible.
Population & families (3 variables)
| Variable | Value |
|---|---|
| POP F | 235 |
| POP M | 318 |
| POP TOT | 553 |
Other recorded variables (23 variables)
| Variable | Value |
|---|---|
| ANGLICANS | 166 |
| BAPTISTS | 10 |
| BRETHREN | 7 |
| BRIT BORN F | 15 |
| BRIT BORN M | 23 |
| BRIT ENG | 116 |
| BRIT IRISH | 193 |
| BRIT OTHER | 3 |
| BRIT SCOTCH | 102 |
| CAN BORN F | 219 |
| CAN BORN M | 292 |
| EUR DUTCH | 54 |
| EUR FRENCH | 51 |
| EUR GERMAN | 25 |
| EUR SCANDINAVIAN | 9 |
| EVANGELICAL ASSOCIATION | 10 |
| FOREIGN BORN F | 1 |
| FOREIGN BORN M | 3 |
| METHODISTS | 161 |
| MORMONS | 7 |
| PRESBYTERIANS | 125 |
| PROTESTANTS | 5 |
| ROMAN CATHOLICS | 62 |
Identifiers
- TCP UID:
ON116003— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_ON116003— computed from spatial-overlap chains across census years - Wikidata: Q115261025
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). "Cardiff, Ontario (1921 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/on/cardiff-on116003-1921/.