St. Catharines
city in Ontario, Canada

St. Catharines is the most populous city in Canada's Niagara Region and the 8th-largest urban area in the province of Ontario. As of 2021, St. Catharines has an area of 96.2 square kilometres (37.1 mi2) and 136,803 residents. It lies in Southern Ontario, 51 kilometres (32 mi) south of Toronto across Lake Ontario, and 19 kilometres (12 mi) inland from the international boundary with the United States along the Niagara River. It is the northern entrance of the Welland Canal. St. Catharines carries the official nickname "The Garden City" due to its 4 square kilometres (1.5 mi2) of parks, gardens, and trails.
St. Catharines is between the Greater Toronto and Hamilton Area (GTHA) and the Canada–U.S. border at Fort Erie.
Begin with the source’s own compact description: “St. Catharines” is city in Ontario, Canada. The dossier treats that line as a proposition to test through Catharines, city and Ontario, not as a finished interpretation.
Why this record matters
The phrase “city in Ontario, Canada” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Sep 23, 2026. The linked authority identifier is Q126805. VIAF identifies the subject as 131970451. The Library of Congress control number is n82094699. Authority coordinates are 43.183, -79.233. 5 of 5 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2021.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “St. Catharines”, its source revision and the description used here.
- Expand the search: follow St. Catharines primary sources, St. Catharines archive and Catharines research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “St. Catharines”?
- Which authority defined the place, boundary or structure at the relevant date?
- What physical evidence or contemporary plan supports the description?
Search terms from this dossier
This entry incorporates text from “St. Catharines” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.