Seneca, Ontario (1911 census)
Seneca was a census subdivision in Ontario, recorded in the 1911 Census of Canada with a population of 1,712. The community is grounded to Wikidata Q115262795. The administrative centroid was at approximately 43.044°N, 79.849°W.
Population
In 1911, Seneca had a population of 1,712: 925 male and 787 female residents. Population density was 26.1 people per square mile.
Population trajectory across census years
| Year | Population |
|---|---|
| 1851 | 3,636 |
| 1861 | 4,577 |
| 1871 | 3,282 |
| 1881 | 2,545 |
| 1891 | 2,231 |
| 1901 | 1,885 |
| 1911 | 1,712 |
| 1921 | 1,742 |
Cross-year identity established by spatial polygon overlap (SAME_AS chains across the Canadian Census Subdivision boundary files).
Neighbouring Census Subdivisions in 1911
In the 1911 census, Seneca shared boundaries with:
Full census record, 1911
The 1911 census recorded 36 measurements for this Census Subdivision across 4 categories.
Population & families (1911). This community's record includes 42,017 area in acres, 1,712 total population, 925 males in the population, 787 females in the population, 574 single (never-married) males, 424 single (never-married) females, 399 families, 332 married males, 313 married females, 65.65 area in square miles, 49 widowed females, 26.09 population per square mile, 17 widowed males, 2 males with marital status not given, 1 females with marital status not given. 1,885 population in the previous census (1901 reference column included in 1911 V1T1). (Source: 1911 Census of Canada, V1T1; V1T2.)
Ethnic origin (1911). This community's record includes 670 persons of British origin (English), 577 persons of British origin (Irish), 242 persons of British origin (Scotch / Scottish), 159 persons of German origin, 24 persons of Austro-Hungarian origin, 11 persons of Swiss origin, 8 persons of British origin (other), 5 persons of Dutch origin, 5 persons of French origin. 6 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. 5 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). (Source: 1911 Census of Canada, V2T7.)
Religion (1911). This community's record includes 587 Methodists, 437 Anglicans (Church of England), 399 Presbyterians, 125 Roman Catholics, 111 Baptists, 23 Lutherans, 15 adherents of various sects (residual category in 1911), 15 Mennonites. (Source: 1911 Census of Canada, V2T2.)
Buildings & housing (1911). This community's record includes 392 dwellings. (Source: 1911 Census of Canada, V1T2.)
Identifiers
- TCP UID:
ON075008— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_ON115008— computed from spatial-overlap chains across census years - Wikidata: Q115262795
Sources
Census tabulations from the 1911 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). "Seneca, Ontario (1911 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/on/seneca-on075008-1911/.