Mersea, Ontario (1871 census)
Mersea was a census subdivision in Ontario, recorded in the 1871 Census of Canada with a population of 3,248. The administrative centroid was at approximately 42.082°N, 82.549°W.
Population
In 1871, Mersea had a population of 3,248: 1,728 male and 1,520 female residents. Population density was 29.3 people per square mile.
Population trajectory across census years
| Year | Population |
|---|---|
| 1851 | 1,193 |
| 1861 | 2,143 |
| 1871 | 3,248 |
| 1881 | 3,552 |
| 1891 | 3,788 |
| 1901 | 4,172 |
| 1911 | 4,081 |
| 1921 | 4,448 |
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 Leamington, Village, 1881 (0.9% of this CSD's polygon).
Neighbouring Census Subdivisions in 1871
In the 1871 census, Mersea shared boundaries with:
Full census record, 1871
The 1871 census recorded 57 measurements for this Census Subdivision across 5 categories. Tables below are collapsible.
Population & families (10 variables)
| Variable | Value |
|---|---|
| Number of families | 596 |
| Number of females | 1,520 |
| Number of males | 1,728 |
| Number of married females | 556 |
| Number of married males | 551 |
| Number of married persons | 1,107 |
| Number of widowed females | 41 |
| Number of widowed males | 23 |
| Number of widowed persons | 64 |
| Total population | 3,248 |
Age structure (3 variables)
| Variable | Value |
|---|---|
| Number of single females under 18 | 923 |
| Number of single males under 18 | 1,154 |
| Number of single persons under 18 | 2,077 |
Buildings & housing (5 variables)
| Variable | Value |
|---|---|
| Number of dwellings that are temporary shanties | 1 |
| Number of houses under construction | 8 |
| Number of inhabited houses | 589 |
| Number of occupied houses | 590 |
| Number of uninhabited houses | 7 |
Agriculture (13 variables)
| Variable | Value |
|---|---|
| BAR BU | 3,330 |
| BWT BU | 2,721 |
| CRN BU | 72,972 |
| HAY AC | 2,617 |
| HAY TONS | 2,927 |
| OAT BU | 52,050 |
| PEA BU | 2,781 |
| POT AC | 459 |
| POT BU | 31,455 |
| RYE BU | 262 |
| Total area (acres) | 60,580 |
| WHT SP BU | 392 |
| WHT WTR BU | 29,582 |
Other recorded variables (26 variables)
| Variable | Value |
|---|---|
| ACRES | 2,217 |
| AREA | 60,580 |
| BEING BUILT | 8 |
| BEN BU | 314 |
| CD | 1 |
| CSD | 6 |
| FAMILIES | 596 |
| FEMALE | 1,520 |
| GRA BU | 165 |
| HOUSES OCCUPIED | 590 |
| INHABITED | 589 |
| MALE | 1,728 |
| MARRIED F | 556 |
| MARRIED M | 551 |
| MARRIED TOTAL | 1,107 |
| POPULATION | 3,248 |
| ROOT BU | 997 |
| SHANTIES | 1 |
| SINGLE F | 923 |
| SINGLE M | 1,154 |
| SINGLE TOTAL | 2,077 |
| TUR BU | 30,074 |
| UNINHABITED | 7 |
| WIDOWED F | 41 |
| WIDOWED M | 23 |
| WIDOWED TOTAL | 64 |
Identifiers
- TCP UID:
ON001006— year-scoped identifier from the Canadian Census Subdivision boundary file - Persistent place ID:
PLACE_ON110008— computed from spatial-overlap chains across census years - Wikidata: not yet grounded. This page covers a place whose persistent identity has not yet been linked to a Wikidata entity. Identification is via TCP UID and spatial polygon only.
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). "Mersea, Ontario (1871 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/on/mersea-on001006-1871/.