Grantham, Ontario (1921 census)
Grantham was a census subdivision in Ontario, recorded in the 1921 Census of Canada with a population of 4,412. The community is grounded to Wikidata Q5596641. The administrative centroid was at approximately 43.175°N, 79.216°W.
Population
In 1921, Grantham had a population of 4,412: 2,357 male and 2,055 female residents.
Population trajectory across census years
| Year | Population |
|---|---|
| 1851 | 3,216 |
| 1861 | 3,956 |
| 1871 | 3,929 |
| 1881 | 2,218 |
| 1891 | 1,928 |
| 1901 | 1,941 |
| 1911 | 2,439 |
| 1921 | 4,412 |
Cross-year identity established by spatial polygon overlap (SAME_AS chains across the Canadian Census Subdivision boundary files).
Boundary continuity (non-identical overlaps)
Spatial polygon overlaps with adjacent census years where the boundary shifted enough that the SAME_AS chain didn't merge them. These show where the territory came from and went to even when it isn't tracked as the same persistent place.
Earlier boundary forms
- In an earlier year, this CSD contained Grantham, 1911 (85.1% share).
Neighbouring Census Subdivisions in 1921
In the 1921 census, Grantham shared boundaries with:
Full census record, 1921
The 1921 census recorded 48 measurements for this Census Subdivision across 3 categories.
Population & families (1921). This community's record includes 4,412 total population, 2,357 males in the population, 2,055 females in the population, 1,493 males born in Canada, 1,392 females born in Canada, 565 males born in the British Empire (excluding Canada), 514 females born in the British Empire (excluding Canada), 299 males born outside the British Empire, 149 females born outside the British Empire. (Source: 1921 Census of Canada, V1T16.)
Ethnic origin (1921). This community's record includes 2,276 persons of British origin (English), 591 persons of British origin (Irish), 563 persons of British origin (Scotch / Scottish), 161 persons of Dutch origin, 131 persons of French origin, 117 persons of German origin, 114 persons of Italian origin, 93 persons of Russian origin, 90 persons of other Asian origin, 44 persons of other European origin, 43 persons of Polish origin, 40 persons of Austrian origin, 40 persons of British origin (other), 31 persons of Ukrainian origin, 18 persons of Scandinavian origin, 14 persons of Finnish origin, 1 persons of Greek origin. 25 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. 12 persons recorded under the official census category "Indian"; corresponds to what is now described as Indigenous (First Nations; in northern enumerations also Inuit) origin. "Indian" was simultaneously a census category and the legal/administrative term under the Indian Act (1876). 1 persons recorded under the 1921 official census category "Hebrew" (origin/ethnicity); now described as Jewish origin. (Source: 1921 Census of Canada, V1T27.)
Religion (1921). This community's record includes 1,703 Anglicans (Church of England), 876 Methodists, 717 Presbyterians, 583 Roman Catholics, 209 Greek (Orthodox) Church adherents, 185 Baptists, 57 adherents of other sects (residual category in 1921), 23 Protestants (general / no denomination specified), 21 Lutherans, 10 Christians (general / no denomination specified), 8 Adventists, 7 persons whose religion or origin is unspecified, 6 Brethren, 6 Salvation Army adherents, 3 Congregationalists, 2 Mennonites, 1 Disciples of Christ, 1 Jews, 1 members of the Evangelical Association. (Source: 1921 Census of Canada, V1T27; V1T38.)
People with Dictionary of Canadian Biography entries
The Dictionary of Canadian Biography includes biographies of 2 people connected to this place who were alive in 1921, listed below by birth year. Each name links to that person's DCB entry.
| Name | Lifespan | Connection |
|---|---|---|
| Reuben Wells Leonard | 1860–1930 | died here |
| William James Fitzgerald | 1888–1926 | died here |
Identifiers
- TCP UID:
ON126004— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_ON126004— computed from spatial-overlap chains across census years - Wikidata: Q5596641
- Wikipedia (EN): https://en.wikipedia.org/wiki/Grantham_Township
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). "Grantham, Ontario (1921 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/on/grantham-on126004-1921/.