Census boundary evidence
Niagara Falls c — 1911 census geography (ON)
This page identifies a census boundary representation. Source-table records below retain their own reporting-unit identity and geographic qualifications.
- Map snapshot identifier
- ON132009_1911
- Source boundary identifier
- ON132009
- Census vintage
- 1911
- Source label
- Niagara Falls c
- Province code
- ON
- District label
- Welland
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: Niagara Falls c
TCP UID: ON132009
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.
- Niagara Falls c — 1911 · 1911_V1T1, row 5491 unique_contextual_name_candidate
- Niagara Falls — 1911 · 1911_V1T2, row 5441 unique_contextual_name_candidate
- Niagara Falls c — 1911 · 1911_V2T2, row 2079 unique_contextual_name_candidate
- Niagara Falls — 1911 · 1911_V2T7, row 2079 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 |
|---|---|---|---|---|---|
| Niagara Falls, Town—Ville · 1901 | 1901 → 1911 | 2462905.25756445 | 0.9999999760068208 | 0.9999996715599819 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
| Stamford · 1901 | 1901 → 1911 | 0.8089169086578636 | 8.270472282560188e-09 | 3.2844001631516735e-07 | PARTIAL_OVERLAPHistorical succession verified: False |
| Stamford · 1921 | 1911 → 1921 | 0.5394374025891582 | 2.1902475694488291e-07 | 5.3798325736265675e-09 | PARTIAL_OVERLAPHistorical succession verified: False |
| Niagara Falls, C · 1921 | 1911 → 1921 | 2462905.5270439754 | 0.9999997809752491 | 0.9999999875750316 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
Continuity assessments
- Niagara Falls, Town—Ville (1901) → Niagara Falls c (1911): name_change_requires_review
- Niagara Falls c (1911) → Niagara Falls, C (1921): name_change_requires_review