Seneca, Ontario (1851 census)

Seneca was a census subdivision in Ontario, recorded in the 1851 Census of Canada with a population of 3,636. The community is grounded to Wikidata Q115262795. The administrative centroid was at approximately 43.045°N, 79.851°W.

Population

In 1851, Seneca had a population of 3,636: 1,979 male and 1,657 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).

Neighbouring Census Subdivisions in 1851

In the 1851 census, Seneca shared boundaries with:

• Ancaster
• Binbrook
• Caistor
• Canboro
• Cayuga, North
• Glanford
• Oneida
• Onondag

Full census record, 1851

The 1851 census recorded 174 measurements for this Census Subdivision across 6 categories.

Population & families (1851). This community's record includes 3,636 total population, 1,979 males, Male members of the family who are present: 1,673, 1,657 females, Female members of the family who are present: 1,511, 1,370 single males, 1,025 single females, 599 families, 571 married males, 552 married females, 330 males attending school, Males present who are not members of the family: 306, 284 females attending school, Females present who are not members of the family: 146, 80 widowed females, 62 female births, 60 male births, 38 widowed males, Male members of the family who are present: 27, Female members of the family who are absent: 18. (Source: 1851 Census of Canada, V1T3.)

Age structure (1851). This community's record includes 257 females aged 5 to 10, 255 males aged 5 to 10, 229 single males aged 20 to 30, 226 single males aged 15 to 20, 218 married females aged 20 to 30, 208 single males aged 10 to 15, 190 single females aged 10 to 15, 179 single females aged 15 to 20, 159 married males aged 30 to 40, 157 married females aged 30 to 40, 136 married males aged 40 to 50, 103 married males aged 50 to 60, 89 married females aged 40 to 50, 85 males aged 1 to 2, 81 males under age 1, 77 married males aged 20 to 30, 73 males aged 3 to 4, 72 females aged 1 to 2, 70 males aged 2 to 3, 68 females under age 1, 67 single males aged 30 to 40, 64 married males aged 60 to 70, 64 single females aged 20 to 30, 62 females aged 2 to 3, 61 males aged 4 to 5, 57 females age 3 to 4, 50 females aged 4 to 5, 45 married females aged 50 to 60, 28 married females aged 15 to 20, 22 married males aged 70 to 80, 20 widowed females aged 50 to 60, 17 widowed females aged 40 to 50, 15 married females aged 60 to 70, 15 widowed females aged 30 to 40, 14 single females aged 30 to 40, 14 widowed females aged 60 to 70, 12 single males aged 40 to 50, 10 widowed males aged 30 to 40, 9 widowed females aged 20 to 30, 9 widowed males aged 60 to 70, 7 married males aged 15 to 20, 6 widowed males aged 40 to 50, 6 widowed males aged 50 to 60, 4 single females aged 40 to 50, 4 single females aged 50 to 60, 4 widowed females aged 70 to 80, 4 widowed males aged 20 to 30, 3 married males aged 80 to 90, 3 single females aged 70 to 80, 2 single males aged 60 to 70, 2 widowed females aged 80 to 90, 2 widowed males aged 80 to 90, 1 single females aged 60 to 70, 1 single males aged 50 to 60, 1 widowed males aged 70 to 80. (Source: 1851 Census of Canada, V1T3.)

Ethnic origin (1851). This community's record includes 2,266 persons native to Canada, not of French origin, 505 persons originating in England or Wales, 412 persons originating in Ireland, 160 persons originating in the United States, 132 persons originating in Scotland, 74 French Canadians, 16 persons originating in New Brunswick, 11 Indigenous persons, 11 persons originating in Germany or Holland, 4 female negroes or coloured persons, 3 persons originating in France, 3 persons originating in Nova Scotia or Prince Edward Island, 2 Indigenous males, 2 male negroes or coloured persons, 1 persons whose origin is unknown. (Source: 1851 Census of Canada, V1T1; V1T3.)

Agriculture (1851). This community's record includes 70,193 bushels of wheat, 35,972 bushels of oats, 31,054 acres of land in farms, 30,983 pounds of homemade butter, 18,148 acres of farmland in woodland or forest, 13,240 bushels of potatoes, 12,906 acres of farmland under cultivation, 9,492 acres of farmland under crops, 6,914 pounds of wool produced on farms, 4,996 bushels of peas, 4,279 pounds of maple sugar, 3,908 acres of wheat, 3,271 acres of farmland in pasture, 2,344 sheep, 2,046 bushels of turnips, 1,985 bushels of barley, 1,973 bushels of buckwheat, 1,859 swine, 1,600 tons of hay, 1,277 bushels of corn, 977 acres of oats, 953 pounds of cheese produced on farms, 743 milk cows, 705 barrels of pork, 682 bulls, oxen, or steers, 662 barrels of beef, 562 calves and heifers, 546 horses, 315 acres of peas, 295 occupants of farms, 187 persons living on farms between 50 and 100 acres, 156 acres of potatoes, 143 acres of farmland in gardens or orchards, 85 acres of buckwheat, 80 acres of barley, 60 persons living on farms between 20 and 50 acres, 50 acres of corn, 49 bushels of clover, timothy, or other grass seed, 36 persons living on farms between 100 and 200 acres, 21 bushels of beans, 20 bushels of rye, 18 acres of turnips, 12 persons living on farms over 200 acres, 3 acres of rye. (Source: 1851 Census of Canada, V2T6.)

Manufacturing & industry (1851). This community's record includes $12,700 value capital returned by saw mills (pounds sterling), 2,863 yards of flannel, 671 yards of fulled cloth, $600 value capital returned by grist mills (pounds sterling), 88 employees in saw mills, 14 saw mills, 14 saw mills reporting annual production, 14 saw mills returning capital, 8 saw mills powered by water, 6 saw mills powered by steam, 3 employees in grist mills, 3 employees in tanneries, 3 tanneries, 2 grist mills, 2 grist mills not reporting, 2 grist mills powered by water, 2 grist mills returning capital, 2 tanneries reporting, 1 tanneries not reporting. 9,100,000 feet of lumber produced per year by saw mills reporting annual production. $1,400 value leather produced in tanneries in the past year (pounds sterling). (Source: 1851 Census of Canada, V2T6; V2T7.)

Deaths & mortality (1851). This community's record includes 34 total number of deaths, Deaths in the past year among males of all ages: 20, Deaths in the past year among females of all ages: 14, Deaths in the past year among males aged 30 to 40: 6, Deaths in the past year among females aged 20 to 30: 4, Deaths in the past year among males aged 20 to 30: 4, Deaths in the past year among females aged 1 to 2: 3, Deaths in the past year among males age 3 to 4: 3, Deaths in the past year among females aged 5 to 10: 2, Deaths in the past year among males aged 15 to 20: 2, Deaths in the past year among females aged 15 to 20: 1, Deaths in the past year among females aged 3 to 4: 1, Deaths in the past year among females aged 30 to 40: 1, Deaths in the past year among females aged 60 to 70: 1, Deaths in the past year among females under age 1: 1, Deaths in the past year among males aged 1 to 2: 1, Deaths in the past year among males aged 5 to 10: 1, Deaths in the past year among males aged 50 to 60: 1, Deaths in the past year among males of unknown age: 1. (Source: 1851 Census of Canada, V1T3.)

Identifiers

• TCP UID: ON013010 — 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 1851 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 (1851 census)" in HGIS Canada Knowledge Graph. Retrieved from https://jimclifford.ca/hgiscanada/places/on/seneca-on013010-1851/.