Census boundary evidence
St. Thomas de Pierreville — 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
- QC100013_1921
- Source boundary identifier
- QC100013
- Census vintage
- 1921
- Source label
- St. Thomas de Pierreville
- Province code
- QC
- District label
- Yamaska
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: St. Thomas de Pierreville
TCP UID: QC100013
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. Thomas de Pierreville — 1921 · 1921_V1T16, row 2301 unique_contextual_name_candidate
- St. Thomas de Pierreville — 1921 · 1921_V1T27, row 2212 unique_contextual_name_candidate
- St. Thomas de Pierreville — 1921 · 1921_V1T38, row 2212 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 |
|---|---|---|---|---|---|
| La Baie du Febvre · 1911 | 1911 → 1921 | 0.05508802878933873 | 5.654902211604287e-10 | 1.0590533363985373e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Notre-Dame de Pierreville · 1911 | 1911 → 1921 | 0.14756242380838 | 5.9388626799670665e-09 | 2.8368500506513714e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| St. Elphège · 1911 | 1911 → 1921 | 0.1749702773272847 | 4.320843584221978e-09 | 3.36375906066002e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| St. Thomas · 1911 | 1911 → 1921 | 52016291.72660838 | 0.9210037074530226 | 0.9999999729670034 | LATER_WITHIN_EARLIERHistorical succession verified: False |
| Pierreville vl · 1911 | 1911 → 1921 | 0.19886833479540655 | 1.650386263603262e-07 | 3.823193134655359e-09 | PARTIAL_OVERLAPHistorical succession verified: False |