Census boundary evidence
St. Jean Port Joli — 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
- QC067008_1921
- Source boundary identifier
- QC067008
- Census vintage
- 1921
- Source label
- St. Jean Port Joli
- Province code
- QC
- District label
- L'IsIet
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: St. Jean Port Joli
TCP UID: QC067008
Census source records
No source row has a supported or candidate endpoint here in the current assessment. This does not mean the population was zero.
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 |
|---|---|---|---|---|---|
| L'Islet · 1911 | 1911 → 1921 | 0.20316460926470434 | 3.304192090018233e-09 | 2.8927348307339842e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| St. Aubert · 1911 | 1911 → 1921 | 0.3624419901162249 | 3.5773934421469926e-09 | 5.160586643137814e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| St. Jean Port Joli · 1911 | 1911 → 1921 | 70232709.56942694 | 0.9999999640001745 | 0.9999999801323712 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
| Ste. Louise · 1911 | 1911 → 1921 | 0.004410757636897476 | 5.759841915315485e-11 | 6.280204161717594e-11 | PARTIAL_OVERLAPHistorical succession verified: False |
| St. Roch des Aulnaies · 1911 | 1911 → 1921 | 0.15969453373961062 | 3.166622298970823e-09 | 2.2737913935813133e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
Continuity assessments
- St. Jean Port Joli (1911) → St. Jean Port Joli (1921): supported_spatial_name_continuity