Deux-Montagnes, Quebec
Deux-Montagnes was a Census Division in Quebec 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 Q2991213.
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 | 30,470 | 17 |
| 1861 | 18,408 | 13 |
| 1871 | 15,615 | 12 |
| 1881 | 15,856 | 13 |
| 1891 | 15,027 | 13 |
| 1901 | 14,438 | 13 |
| 1911 | 10,641 | 14 |
| 1921 | 14,309 | 15 |
Constituent Census Subdivisions by year
1851 census
- Chatham wd (pop 3,167)
- Gore wd (pop 996)
- Grenville wd (pop 1,992)
- Harrington wd (pop 267)
- Isle Bizard (pop 950)
- Lac des Deux Montagnes (pop 630)
- Lachute wd (pop 2,124)
- St. André wd (pop 2,326)
- St. Augustin wd (pop 2,299)
- St. Benoit wd (pop 2,663)
- St. Colomban wd (pop 888)
- St. Eustache, Parish wd (pop 3,365)
- St. Eustache, Village wd (pop 784)
- St. Hermas wd (pop 1,731)
- St. Placide wd (pop 1,230)
- Ste. Scholastique wd (pop 4,762)
- Wentworth wd (pop 296)
1861 census
- Lac des Deux Montagnes (pop 562)
- St. Augustin wd (pop 2,228)
- St. Benoit wd (pop 1,988)
- St. Canut wd (pop 825)
- St. Colomban wd (pop 896)
- St. Eustache wd (pop 2,372)
- St. Eustache, Village wd (pop 915)
- St. Hermas wd (pop 1,583)
- St. Joseph wd (pop 1,346)
- St. Jérôme wd (pop 244)
- St. Placide wd (pop 1,479)
- Ste. Scholastique wd (pop 3,204)
- Ste. Scholastique, Village wd (pop 766)
1871 census
- Lac des Deux Montagnes (pop 735)
- St. Augustin wd (pop 1,812)
- St. Benoit wd (pop 1,613)
- St. Canut wd (pop 645)
- St. Colomban wd (pop 676)
- St. Eustache wd (pop 1,987)
- St. Eustache, Village wd (pop 858)
- St. Hermas wd (pop 1,307)
- St. Joseph wd (pop 1,292)
- St. Placide wd (pop 1,172)
- Ste. Scholastique wd (pop 2,811)
- Ste. Scholastique, Village wd (pop 707)
1881 census
- L'Annonciation wd (pop 1,342)
- St. Augustin wd (pop 1,462)
- St. Benoit wd (pop 1,560)
- St. Canut wd (pop 665)
- St. Colomban wd (pop 590)
- St. Eustache wd (pop 1,981)
- St. Eustache, Village wd (pop 814)
- St. Hermas wd (pop 1,253)
- St. Joseph wd (pop 1,167)
- St. Placide wd (pop 1,116)
- Ste. Monique wd (pop 1,149)
- Ste. Scholastique wd (pop 1,967)
- Ste. Scholastique, Village wd (pop 790)
1891 census
- L'Annonciation wd (pop 1,466)
- St. Augustin wd (pop 1,328)
- St. Benoit wd (pop 1,385)
- St. Canut wd (pop 639)
- St. Colomban wd (pop 395)
- St. Eustache wd (pop 1,796)
- St. Eustache, Village wd (pop 960)
- St. Hermas wd (pop 1,217)
- St. Joseph wd (pop 1,153)
- St. Placide wd (pop 990)
- Ste. Monique wd (pop 1,090)
- Ste. Scholastique wd (pop 1,770)
- Ste. Scholastique, Village wd (pop 838)
1901 census
- L'Annonciation wd (pop 1,571)
- St. Augustin wd (pop 1,292)
- St. Benoit wd (pop 1,317)
- St. Canut wd (pop 651)
- St. Colomban wd (pop 324)
- St. Eustache wd (pop 1,685)
- St. Eustache, Village wd (pop 1,079)
- St. Hermas wd (pop 1,126)
- St. Joseph wd (pop 1,091)
- St. Placide wd (pop 946)
- Ste. Monique wd (pop 940)
- Ste. Scholastique wd (pop 1,551)
- Ste. Scholastique, Village wd (pop 865)
1911 census
- L'Annonciation wd (pop 1,601)
- St. Augustin wd
- St. Benoit wd (pop 890)
- St. Benoit, VL wd (pop 345)
- St. Canut wd (pop 665)
- St. Colomban wd (pop 291)
- St. Eustache wd (pop 1,703)
- St. Eustache, Village wd (pop 996)
- St. Hermas wd (pop 1,034)
- St. Joseph wd
- St. Placide wd (pop 888)
- Ste. Monique wd
- Ste. Scholastique wd (pop 1,471)
- Ste. Scholastique, Village wd (pop 757)
1921 census
- L'Annonciation wd (pop 1,617)
- Réserves Indiennes (pop 451)
- St. Augustin wd (pop 1,264)
- St. Benoit wd (pop 872)
- St. Benoit, VL wd (pop 414)
- St. Canut wd (pop 784)
- St. Colomban wd (pop 297)
- St. Eustache wd (pop 1,721)
- St. Eustache, Village wd (pop 1,098)
- St. Hermas wd (pop 965)
- St. Joseph wd (pop 1,056)
- St. Placide wd (pop 819)
- Ste. Monique wd (pop 737)
- Ste. Scholastique wd (pop 1,374)
- Ste. Scholastique, Village wd (pop 840)
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 Argenteuil in 1861.
Identifiers
- HGIS Canada CD ID:
CD_QC_Deux-Montagnes - Wikidata: Q2991213
- Wikipédia (FR): https://fr.wikipedia.org/wiki/Comt%C3%A9_de_Deux-Montagnes
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.