Southgate, Ontario
township municipality in Grey County, Ontario, Canada

Southgate is a township in southwestern Ontario, Canada, in the southeast corner of Grey County.
Southgate was formed on January 1, 2000, when the Village of Dundalk, the Township of Proton and the Township of Egremont were amalgamated. The headwaters of the South Saugeen, Beatty Saugeen and Grand Rivers are located in Southgate.
Communities
The township comprises the communities of:
The largest communities are Dundalk and Holstein
Demographics
In the 2021 Census of Population conducted by Statistics Canada, Southgate had a population of 8,716 living in 3,017 of its 3,257 total private dwellings, a change of 18.5% from its 2016 population of 7,354. With a land area of 643.08 km2 (248.29 sq mi), it had a population density of 13.6/km2 (35.1/sq mi) in 2021.
Economy
Agriculture is the dominant sector of the economy in Southgate. Many of the farms in Southgate have secondary businesses on the farm to service the rural farm community. For the last 20 years, Mennonites have been purchasing farmland in Southgate and have expanded the land base available for agriculture. The supply of agricultural land is expanding in Southgate.
The industrial sector is concentrated in the Dundalk area.
“Southgate, Ontario” enters the record as township municipality in Grey County, Ontario, Canada. Crown Archives preserves that source wording while asking what Southgate, Ontario and township can confirm, complicate or overturn.
Why this record matters
“Southgate, Ontario” is worth following because a concise public description often conceals a longer documentary argument. Here, Southgate, Ontario and township provides the most credible route into that argument.
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 26, 2026. The linked authority identifier is Q7570792. Authority coordinates are 44.106, -80.588. 2 of 2 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 2000, 2021 and 2016.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. 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 “Southgate, Ontario”, its source revision and the description used here.
- Expand the search: follow Southgate, Ontario primary sources, Southgate, Ontario archive and Southgate 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 “Southgate, Ontario”?
- What physical evidence or contemporary plan supports the description?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “Southgate, Ontario” 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.