Mosa, Ontario (1871 census)

Mosa was a census subdivision in Ontario, recorded in the 1871 Census of Canada with a population of 3,194. The administrative centroid was at approximately 42.715°N, 81.772°W.

Population

In 1871, Mosa had a population of 3,194: 1,662 male and 1,532 female residents.

Population trajectory across census years

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 Newbury, VL, 1881 (1.2% of this CSD's polygon).

Neighbouring Census Subdivisions in 1871

In the 1871 census, Mosa shared boundaries with:

• Aldborough
• Brooke
• Dunwich
• Ekfrid
• Euphemia
• Metcalfe
• Wardsville, VL
• Zone

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 3,194 total population, 1,662 males, 1,532 females, 952 married persons, 563 families, 478 married males, 474 married females, 98 widowed persons, 61 widowed females, 37 widowed males. (Source: 1871 Census of Canada, V1T1.)

Age structure (1871). This community's record includes 2,144 single persons under 18, 1,147 single males under 18, 997 single females under 18. (Source: 1871 Census of Canada, V1T1.)

Buildings & housing (1871). This community's record includes 559 occupied houses, 558 inhabited houses, 26 uninhabited houses, 2 houses under construction, 1 dwellings that are temporary shanties. (Source: 1871 Census of Canada, V1T1.)

Agriculture (1871). This community's record includes 49,729 total area (acres). (Source: 1871 Census of Canada, V1T1.)

Identifiers

• TCP UID: ON007001 — year-scoped identifier from the Canadian Census Subdivision boundary file
• Persistent place ID: PLACE_ON128012 — 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). "Mosa, Ontario (1871 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/on/mosa-on007001-1871/.