Sarnia, Ontario (1911 census)
Sarnia was a census subdivision in Ontario, recorded in the 1911 Census of Canada with a population of 2,663. The community is grounded to Wikidata Q115262762. The administrative centroid was at approximately 42.965°N, 82.323°W.
Population
In 1911, Sarnia had a population of 2,663: 1,407 male and 1,256 female residents. Population density was 34.0 people per square mile.
Population trajectory across census years
| Year | Population |
|---|---|
| 1851 | 1,384 |
| 1861 | 1,560 |
| 1871 | 3,438 |
| 1881 | 3,583 |
| 1891 | 2,937 |
| 1901 | 2,632 |
| 1911 | 2,663 |
| 1921 | 2,583 |
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.
Later boundary forms
- In a later year, this CSD contained Sarnia, 1921 (93.4% of this CSD's polygon).
Neighbouring Census Subdivisions in 1911
In the 1911 census, Sarnia shared boundaries with:
Full census record, 1911
The 1911 census recorded 42 measurements for this Census Subdivision across 2 categories. Tables below are collapsible.
Population & families (5 variables)
| Variable | Value |
|---|---|
| POP | 2,632 |
| POP F | 1,256 |
| POP M | 1,407 |
| POP PER SQ MI | 37.46 |
| POP TOT | 2,663 |
Other recorded variables (37 variables)
| Variable | Value |
|---|---|
| ANGLICANS | 455 |
| AREA ACRES | 45,489 |
| AREA SQ MI | 71.08 |
| BAPTISTS | 136 |
| BRETHREN | 1 |
| BRIT ENGLISH | 902 |
| BRIT IRISH | 489 |
| BRIT OTHER | 6 |
| BRIT SCOTCH | 663 |
| CHRISTIANS | 8 |
| DISCIPLES | 7 |
| DUTCH | 6 |
| DWELLINGS | 615 |
| F MARRIED | 511 |
| F SINGLE | 664 |
| F WIDOWED | 81 |
| FAMILIES | 624 |
| FRENCH | 41 |
| FRIENDS | 5 |
| GERMAN | 84 |
| INDIAN | 456 |
| LUTHERANS | 2 |
| M MARRIED | 515 |
| M SINGLE | 820 |
| M WIDOWED | 72 |
| MENNONITES | 4 |
| METHODISTS | 1,202 |
| MORMONS | 4 |
| NEGRO | 6 |
| PRESBYTERIANS | 685 |
| PROTESTANTS | 5 |
| ROMAN CATHOLICS | 121 |
| SALVATION ARMY | 2 |
| SCANDINAVIAN | 1 |
| SWISS | 1 |
| UNSPECIFIED | 8 |
| VARIOUS SECTS | 24 |
Identifiers
- TCP UID:
ON088004— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_ON122008— computed from spatial-overlap chains across census years - Wikidata: Q115262762
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). "Sarnia, Ontario (1911 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/on/sarnia-on088004-1911/.