L'Islet, Quebec

L'Islet 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 Q2991287.

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.

Constituent Census Subdivisions by year

1851 census

• Ashford (pop 61)
• Cap St. Ignace wd (pop 2,733)
• Grosse Ile (pop 30)
• Ile aux Canots (pop 9)
• Ile aux Grues (pop 470)
• Ile aux Oies (pop 113)
• L'Islet wd (pop 3,656)
• Montmagny, Village wd (pop 1,221)
• Montmini, Township (pop 19)
• St. Cyrille wd (pop 448)
• St. Jean Port Joli wd (pop 3,496)
• St. Pierre wd (pop 1,461)
• St. Roch wd (pop 2,930)
• St. Thomas (pop 2,994)

1861 census

• Ashford (pop 1,097)
• L'Islet wd (pop 4,093)
• St. Aubert, Fournier (pop 1,325)
• St. Cyrille wd (pop 652)
• St. Jean (pop 2,975)
• St. Roch wd (pop 2,158)

1871 census

• Casgrain, Dionne, Lafontaine, Garneau (pop 1,065)
• L’lslet, St. Eugène (pop 4,084)
• St. Aubert, Fournier (pop 1,382)
• St. Cyrille, Lessard, Beaubien, Arago, Leverrier (pop 1,028)
• St. Jean Port Joli wd (pop 2,436)
• St. Roch wd (pop 2,311)
• Ste. Louise, Ashford (pop 1,211)

1881 census

• Fournier, St. Aubert (pop 1,622)
• L'Islet wd (pop 2,974)
• St. Cyrille, Lessard, Beaubien, Arago, Leverrier (pop 1,309)
• St. Eugène wd (pop 1,448)
• St. Jean Port Joli wd (pop 2,622)
• St. Roch wd (pop 1,985)
• Ste. Louise, Ashford (pop 1,632)
• Ste. Perpétue, St. Pamphile, Casgrain, Dionne & c (pop 1,325)

1891 census

• Elgin & Taché (pop 570)
• L'Islet wd (pop 2,414)
• St. Aubert wd (pop 1,573)
• St. Cyrille wd (pop 1,289)
• St. Damase (pop 624)
• St. Eugène wd (pop 1,500)
• St. Jean Port Joli wd (pop 2,171)
• St. Pamphile wd (pop 1,041)
• St. Roch des Aulnaies wd (pop 1,662)
• Ste. Louise (pop 979)

1901 census

• L'Islet wd (pop 2,454)
• St. Aubert wd (pop 1,409)
• St. Cyrille wd (pop 1,656)
• St. Damase (pop 597)
• St. Eugène wd (pop 1,477)
• St. Jean Port Joli wd (pop 2,261)
• St. Pamphile wd (pop 1,307)
• St. Roch des Aulnaies wd (pop 1,322)
• Ste. Louise (pop 1,280)
• Ste. Perpétue wd (pop 676)

1911 census

• L'Islet wd (pop 2,411)
• St. Aubert wd (pop 1,324)
• St. Cyrille wd (pop 1,642)
• St. Damase (Ashford)
• St. Eugène wd (pop 1,359)
• St. Jean Port Joli wd (pop 2,213)
• St. Marcel wd
• St. Pamphile wd (pop 2,257)
• St. Roch des Aulnaies wd (pop 1,290)
• Ste. Louise (pop 1,120)
• Ste. Perpétue wd

1921 census

• Arago (St. Marcel) wd (pop 535)
• Ashford (St. Damase) wd (pop 795)
• Bonsecours, VL (pop 769)
• L'Islet wd (pop 1,681)
• St. Adalbert (Leverrier & Casgrain) wd (pop 601)
• St. Aubert wd (pop 1,236)
• St. Cyrille wd (pop 1,692)
• St. Eugène wd (pop 1,292)
• St. Jean Port Joli wd (pop 2,022)
• St. Pamphile wd (pop 2,271)
• St. Roch des Aulnaies wd (pop 1,183)
• Ste. Louise des Aulnaies wd (pop 1,046)
• Ste. Perpétue wd (pop 1,970)
• Tourville wd (pop 766)

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 Montmagny in 1861.

Identifiers

• HGIS Canada CD ID: CD_QC_L'Islet
• Wikidata: Q2991287
• Wikipédia (FR): https://fr.wikipedia.org/wiki/Comt%C3%A9_de_L%27Islet

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.