Northumberland, Ontario
Northumberland was a Census Division in Ontario as recorded in the 1851–1921 Canadian census series. It comprised the constituent Census Subdivisions listed below for each year it appears in the published volumes. This CD is grounded to Wikidata Q1752156.
Population trajectory across census years
Aggregate population summed from constituent Census Subdivisions in this Census Division each year. Where the published 1851–1921 census volumes report a CD-level total, the figures should match within rounding; for cities split into wards, the per-CSD sum may diverge from the published CD aggregate.
| Year | Population | CSDs |
|---|---|---|
| 1851 | 31,229 | 10 |
| 1861 | 40,592 | 12 |
| 1921 | 31,285 | 15 |
Constituent Census Subdivisions by year
1851 census
- Alnwick wd (pop 836)
- Brighton wd (pop 3,725)
- Cobourg, T-V wd (pop 3,871)
- Cramahe wd (pop 2,993)
- Haldimand wd (pop 4,634)
- Hamilton wd (pop 5,008)
- Monaghan, South (pop 1,051)
- Murray wd (pop 3,725)
- Percy wd (pop 2,605)
- Seymour wd (pop 2,781)
1861 census
- Alnwick wd (pop 1,388)
- Brighton wd (pop 3,713)
- Brighton, Village wd (pop 1,182)
- Cobourg, T-V wd (pop 4,975)
- Colborne, Village (pop 806)
- Cramahe wd (pop 3,841)
- Haldimand wd (pop 6,164)
- Hamilton wd (pop 6,315)
- Monaghan, South (pop 1,239)
- Murray wd (pop 3,612)
- Percy wd (pop 3,515)
- Seymour wd (pop 3,842)
1921 census
- Alnwick wd (pop 696)
- Brighton (pop 2,247)
- Brighton, VL wd (pop 1,411)
- Campbellford, T-V wd (pop 2,890)
- Cobourg, T-V wd (pop 5,327)
- Colborne, VL (pop 932)
- Cramahe wd (pop 2,247)
- Haldimand wd (pop 3,008)
- Hamilton wd (pop 3,026)
- Hastings, VL wd (pop 730)
- Indian Reserves (pop 182)
- Monaghan S (pop 773)
- Murray wd (pop 2,536)
- Percy wd (pop 2,593)
- Seymour wd (pop 2,687)
Lineage
Boundary changes connecting this Census Division to others in the 1851–1921 series, derived from spatial polygon overlap across census-year boundary files.
- Split into Northumberland East, Northumberland West in 1871.
- Re-formed from Northumberland East, Northumberland West in 1921.
Identifiers
- HGIS Canada CD ID:
CD_ON_Northumberland - Wikidata: Q1752156
- Wikipedia (EN): https://en.wikipedia.org/wiki/Northumberland_County,_Ontario
- Wikipédia (FR): https://fr.wikipedia.org/wiki/Comt%C3%A9_de_Northumberland_(Ontario)
Sources
Census Division boundaries derived from the
Canadian Peoples / TCP
1851–1921 Census Subdivision boundary files (NAME_CD_<year> attributes,
hosted at the HGIS Lab, University of Saskatchewan).
Constituent-CSD memberships use the P10_falls_within CIDOC-CRM relationships
emitted by the spatial CIDOC builder. Wikidata grounding for Census Divisions performed via the
HGIS Canada Knowledge Graph
project's MCP-assisted disambiguation pipeline. See the About / Methodology
page for the full data pipeline.