Derby, Ontario (1921 census)
Derby was a census subdivision in Ontario, recorded in the 1921 Census of Canada with a population of 1,554. The community is grounded to Wikidata Q115261272. The administrative centroid was at approximately 44.511°N, 81.018°W.
Population
In 1921, Derby had a population of 1,554: 817 male and 737 female residents. Population density was 22.6 people per square mile.
Population trajectory across census years
| Year | Population |
|---|---|
| 1851 | 471 |
| 1861 | 1,243 |
| 1871 | 1,946 |
| 1881 | 2,363 |
| 1891 | 2,200 |
| 1901 | 2,146 |
| 1911 | 1,930 |
| 1921 | 1,554 |
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, Derby shared boundaries with:
Full census record, 1921
The 1921 census recorded 32 measurements for this Census Subdivision across 2 categories. Tables below are collapsible.
Population & families (3 variables)
| Variable | Value |
|---|---|
| POP F | 737 |
| POP M | 817 |
| POP TOT | 1,554 |
Other recorded variables (29 variables)
| Variable | Value |
|---|---|
| ADVENTISTS | 2 |
| ANGLICANS | 126 |
| BAPTISTS | 59 |
| BRIT BORN F | 52 |
| BRIT BORN M | 68 |
| BRIT ENG | 423 |
| BRIT IRISH | 555 |
| BRIT OTHER | 6 |
| BRIT SCOTCH | 509 |
| CAN BORN F | 679 |
| CAN BORN M | 743 |
| DISCIPLES OF CHRIST | 73 |
| EUR DUTCH | 10 |
| EUR FRENCH | 4 |
| EUR GERMAN | 40 |
| EUR OTHER | 1 |
| FOREIGN BORN F | 6 |
| FOREIGN BORN M | 6 |
| LUTHERANS | 13 |
| MENNONITES | 16 |
| METHODISTS | 382 |
| MORMONS | 9 |
| NEGRO | 3 |
| OTHER SECTS | 41 |
| PRESBYTERIANS | 817 |
| PROTESTANTS | 3 |
| ROMAN CATHOLICS | 6 |
| SALVATION ARMY | 1 |
| UNSPECIFIED | 3 |
Identifiers
- TCP UID:
ON114004— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_ON114004— computed from spatial-overlap chains across census years - Wikidata: Q115261272
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). "Derby, Ontario (1921 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/on/derby-on114004-1921/.