Census boundary evidence
St. Jean Port Joli — 1851 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
- QC060005_1851
- Source boundary identifier
- QC060005
- Census vintage
- 1851
- Source label
- St. Jean Port Joli
- Province code
- QC
- District label
- L’Islet
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: St. Jean Port Joli
TCP UID: QC060005
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. Jean Port Joli — 1851 · 1851_V1T1, row 598 source_identifier_and_context_agree
- St Jean Port Joli — 1851 · 1851_V1T3, row 597 source_identifier_and_context_agree
- St Jean Port Joli — 1851 · 1851_V2T6, row 559 source_identifier_and_context_agree
- St. Jean Port Joli — 1851 · 1851_V2T7, row 567 source_identifier_and_context_agree
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 |
|---|---|---|---|---|---|
| St. Aubert and Fournier · 1861 | 1851 → 1861 | 110106020.46974178 | 0.6105511007308665 | 0.4139984184682394 | PARTIAL_OVERLAPHistorical succession verified: False |
| St. Cyrille · 1861 | 1851 → 1861 | 17.13516115477725 | 9.501652552346188e-08 | 1.481991087173506e-07 | PARTIAL_OVERLAPHistorical succession verified: False |
| St. Jean · 1861 | 1851 → 1861 | 70232709.3696554 | 0.3894488042526083 | 1.0000000000000002 | LATER_WITHIN_EARLIERHistorical succession verified: False |