Census boundary evidence
St. Grégoire de Montmorency — 1921 census geography (QC)
This page identifies a census boundary representation. Source-table records below retain their own reporting-unit identity and geographic qualifications.
- Map snapshot identifier
- QC081014_1921
- Source boundary identifier
- QC081014
- Census vintage
- 1921
- Source label
- St. Grégoire de Montmorency
- Province code
- QC
- District label
- Québec
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: St. Grégoire de Montmorency
TCP UID: QC081014
Census source records
Each link states the assessment that connected the source row to this map. Name candidates remain candidates; no source statistic is silently assigned to the map.
- St. Grégoire de Montmorency — 1921 · 1921_V1T16, row 1819 unique_contextual_name_candidate
- St. Grégoire de Montmorency — 1921 · 1921_V1T27, row 1818 unique_contextual_name_candidate
- St. Grégoire de Montmorency — 1921 · 1921_V1T38, row 1818 unique_contextual_name_candidate
Boundary intersections across censuses
These are computed polygon intersections in the equal-area CRS ESRI:102001. Fractions describe the area of the earlier and later polygons, respectively. They do not establish historical succession, and population has not been apportioned by area. All positive intersections are retained, including very small contributions.
| Other census representation | Years (earlier → later) | Overlap (m²) | Fraction of earlier area | Fraction of later area | Evidence |
|---|---|---|---|---|---|
| Beauport · 1911 | 1911 → 1921 | 0.07092319757067062 | 9.892561293241325e-10 | 1.2241723699523882e-07 | PARTIAL_OVERLAPHistorical succession verified: False |
| St. Grégoire de Montmorency · 1911 | 1911 → 1921 | 0.035302995093051764 | 1.527858190680578e-08 | 6.093486003139617e-08 | PARTIAL_OVERLAPHistorical succession verified: False |
| Montmorency vl · 1911 | 1911 → 1921 | 579356.1373721217 | 0.29014776062455394 | 0.9999997180423028 | LATER_WITHIN_EARLIERHistorical succession verified: False |