Rochester, Ontario (1921 census)
Rochester was a census subdivision in Ontario, recorded in the 1921 Census of Canada with a population of 2,082. The community is grounded to Wikidata Q115262708. The administrative centroid was at approximately 42.236°N, 82.655°W.
Population
In 1921, Rochester had a population of 2,082: 1,111 male and 971 female residents.
Population trajectory across census years
| Year | Population |
|---|---|
| 1851 | 788 |
| 1861 | 1,349 |
| 1871 | 2,152 |
| 1881 | 2,483 |
| 1891 | 2,806 |
| 1901 | 2,625 |
| 1911 | 2,231 |
| 1921 | 2,082 |
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, Rochester shared boundaries with:
Full census record, 1921
The 1921 census recorded 31 measurements for this Census Subdivision across 3 categories.
Population & families (1921). This community's record includes 2,082 total population, 1,111 males in the population, 1,054 males born in Canada, 971 females in the population, 914 females born in Canada, 47 males born outside the British Empire, 39 females born outside the British Empire, 18 females born in the British Empire (excluding Canada), 10 males born in the British Empire (excluding Canada). (Source: 1921 Census of Canada, V1T16.)
Ethnic origin (1921). This community's record includes 1,272 persons of French origin, 382 persons of British origin (Irish), 225 persons of British origin (English), 109 persons of German origin, 53 persons of British origin (Scotch / Scottish), 16 persons of Belgian origin, 9 persons of Dutch origin, 7 persons of Scandinavian origin, 5 persons of Syrian origin, 3 persons of other European origin, 1 persons of Italian origin. (Source: 1921 Census of Canada, V1T27.)
Religion (1921). This community's record includes 1,597 Roman Catholics, 347 Methodists, 32 Anglicans (Church of England), 29 Baptists, 25 Presbyterians, 25 Protestants (general / no denomination specified), 18 Lutherans, 5 adherents of other sects (residual category in 1921), 2 Adventists, 1 Mennonites, 1 Salvation Army adherents. (Source: 1921 Census of Canada, V1T38.)
Identifiers
- TCP UID:
ON110010— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_ON110010— computed from spatial-overlap chains across census years - Wikidata: Q115262708
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). "Rochester, Ontario (1921 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/on/rochester-on110010-1921/.