Census boundary evidence
St. Jean Chrysostôme — 1871 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
- QC112005_1871
- Source boundary identifier
- QC112005
- Census vintage
- 1871
- Source label
- St. Jean Chrysostôme
- Province code
- QC
- District label
- Chateauguay
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: St. Jean Chrysostome
TCP UID: QC112005
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 Chrysostôme — 1871 · 1871_V1T1, row 791 source_identifier_and_context_agree
- St. Jean Chrysostôme — 1871 · 1871_V3T23, row 791 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. Jean Chrysostôme · 1861 | 1861 → 1871 | 217035902.35447204 | 0.9867542877413767 | 1.0000000000000002 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
| St. Jean Chrysostome · 1881 | 1871 → 1881 | 217004554.69087797 | 0.9998555646174021 | 1.0 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
| Howick, Village · 1881 | 1871 → 1881 | 31347.663594056503 | 0.00014443538259793627 | 0.03049709694175399 | PARTIAL_OVERLAPHistorical succession verified: False |
Continuity assessments
- St. Jean Chrysostôme (1861) → St. Jean Chrysostôme (1871): supported_continuity_with_area_separation
- St. Jean Chrysostôme (1871) → St. Jean Chrysostome (1881): supported_continuity_with_area_separation
Area separations
| Earlier area | Continuing area | Separate area | Retained fraction | Separated fraction | Comparison status |
|---|---|---|---|---|---|
| St. Jean Chrysostôme · 1861 | St. Jean Chrysostôme · 1871 | Sherrington | 0.9867542877413767 | 0.0132457122586233 | later_totals_require_geographic_reconciliation |
| St. Jean Chrysostôme · 1871 | St. Jean Chrysostome · 1881 | Howick, Village | 0.999855564617402 | 0.0001444353825979 | later_totals_require_geographic_reconciliation |