Petrolia, T-V, Ontario (1871 census)
Petrolia, T-V was a town in Ontario, recorded in the 1871 Census of Canada with a population of 2,651. The community is grounded to Wikidata Q3089341. The administrative centroid was at approximately 42.887°N, 82.141°W.
Population
In 1871, Petrolia, T-V had a population of 2,651: 1,452 male and 1,199 female residents.
Population trajectory across census years
| Year | Population |
|---|---|
| 1871 | 2,651 |
| 1881 | 3,465 |
| 1891 | 4,357 |
| 1901 | 4,135 |
| 1911 | 3,518 |
| 1921 | 3,148 |
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 was contained in Enniskillen, 1861 (0.7% share).
Neighbouring Census Subdivisions in 1871
In the 1871 census, Petrolia, T-V shared boundaries with:
Full census record, 1871
The 1871 census recorded 18 measurements for this Census Subdivision across 4 categories.
Population & families (1871). This community's record includes 2,651 total population, 1,452 males, 1,199 females, 915 married persons, 492 families, 466 married males, 449 married females, 48 widowed persons, 28 widowed females, 20 widowed males. (Source: 1871 Census of Canada, V1T1.)
Age structure (1871). This community's record includes 1,688 single persons under 18, 966 single males under 18, 722 single females under 18. (Source: 1871 Census of Canada, V1T1.)
Buildings & housing (1871). This community's record includes 444 inhabited houses, 444 occupied houses, 1 houses under construction, 1 uninhabited houses. (Source: 1871 Census of Canada, V1T1.)
Agriculture (1871). This community's record includes 2,721 total area (acres). (Source: 1871 Census of Canada, V1T1.)
Identifiers
- TCP UID:
ON004004— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_ON122014— computed from spatial-overlap chains across census years - Wikidata: Q3089341
- Wikipedia (EN): https://en.wikipedia.org/wiki/Petrolia,_Ontario
- Wikipédia (FR): https://fr.wikipedia.org/wiki/Petrolia_(Ontario)
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). "Petrolia, T-V, Ontario (1871 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/on/petrolia-t-v-on004004-1871/.