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 trajectory across census years
| Year | Population |
|---|---|
| 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 3 categories.
Population & families (1921). This community's record includes 1,554 total population, 817 males in the population, 743 males born in Canada, 737 females in the population, 679 females born in Canada, 68 males born in the British Empire (excluding Canada), 52 females born in the British Empire (excluding Canada), 6 females born outside the British Empire, 6 males born outside the British Empire. (Source: 1921 Census of Canada, V1T16.)
Ethnic origin (1921). This community's record includes 555 persons of British origin (Irish), 509 persons of British origin (Scotch / Scottish), 423 persons of British origin (English), 40 persons of German origin, 10 persons of Dutch origin, 6 persons of British origin (other), 4 persons of French origin, 1 persons of other European origin. 3 persons recorded under the 1911/1921 official census category "Negro"; refers to people of African descent. Term is now considered offensive and is preserved here only as the historical source label. (Source: 1921 Census of Canada, V1T27.)
Religion (1921). This community's record includes 817 Presbyterians, 382 Methodists, 126 Anglicans (Church of England), 73 Disciples of Christ, 59 Baptists, 41 adherents of other sects (residual category in 1921), 16 Mennonites, 13 Lutherans, 9 Mormons (Latter-day Saints), 6 Roman Catholics, 3 persons whose religion or origin is unspecified, 3 Protestants (general / no denomination specified), 2 Adventists, 1 Salvation Army adherents. (Source: 1921 Census of Canada, V1T27; V1T38.)
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/.