Seneca, Ontario (1871 census)
Seneca was a census subdivision in Ontario, recorded in the 1871 Census of Canada with a population of 3,282. The community is grounded to Wikidata Q115262795. The administrative centroid was at approximately 43.044°N, 79.849°W.
Population
In 1871, Seneca had a population of 3,282: 1,715 male and 1,567 female residents.
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 1871
In the 1871 census, Seneca shared boundaries with:
Full census record, 1871
The 1871 census recorded 19 measurements for this Census Subdivision across 4 categories.
Population & families (1871). This community's record includes 3,282 total population, 1,715 males, 1,567 females, 934 married persons, 548 families, 468 married males, 466 married females, 108 widowed persons, 72 widowed females, 36 widowed males. (Source: 1871 Census of Canada, V1T1.)
Age structure (1871). This community's record includes 2,240 single persons under 18, 1,211 single males under 18, 1,029 single females under 18. (Source: 1871 Census of Canada, V1T1.)
Buildings & housing (1871). This community's record includes 544 occupied houses, 543 inhabited houses, 37 uninhabited houses, 1 dwellings that are temporary vessels, 1 houses under construction. (Source: 1871 Census of Canada, V1T1.)
Agriculture (1871). This community's record includes 38,061 total area (acres). (Source: 1871 Census of Canada, V1T1.)
Identifiers
- TCP UID:
ON017007— 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 1871 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 (1871 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/on/seneca-on017007-1871/.