| St. Joseph | |
| Official Name: | Township of St. Joseph |
| Settlement Type: | Township (single-tier) |
| Pushpin Map: | Canada Ontario |
| Pushpin Label Position: | top |
| Pushpin Mapsize: | 200 |
| Coordinates: | 46.2667°N -84°W |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Type1: | Province |
| Subdivision Name1: | Ontario |
| Subdivision Type2: | District |
| Subdivision Name2: | Algoma |
| Established Title: | Established |
| Government Type: | Township |
| Leader Title: | Mayor |
| Leader Name: | Joseph (Jody) Wildman |
| Leader Title1: | Governing Body |
| Leader Name1: | St. Joseph Township Council |
| Area Land Km2: | 129.36 |
| Population Total: | 1240 |
| Population As Of: | 2016 |
| Population Footnotes: | [1] |
| Population Density Km2: | 9.3 |
| Postal Code Type: | Postal code |
| Postal Code: | P0R 1G0 |
| Area Code: | 705, 249 |
| Website: | www.stjosephtownship.com |
| Pushpin Label: | St. Joseph |
| Leader Title2: | MP |
| Leader Name2: | Carol Hughes (NDP) |
| Leader Name3: | Michael Mantha (NDP) |
| Timezone: | EST |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
St. Joseph is a township in the Canadian province of Ontario, the largest of four municipalities on St. Joseph Island. It had a population of 1,240 in the Canada 2016 Census.
The township's main population centre is Richards Landing. It also includes the smaller communities of Harmony and Sailors Encampment.
The hamlet of Richards Landing has a view of the Highway 548 bridge at the pier on the northern tip of town. Highway 548 leads through the centre of the town and is its main thoroughfare. "The Landing" is St. Joseph Island's business centre, offering a grocery store, liquor/beer store, gift shops and galleries, restaurants, accommodation, marina/boat re-fuelling, 24-hour Emergency Department/hospital, medical centre, pharmacy and physiotherapy (physical therapy) clinic, bank, parks, public swimming, beach and tennis courts, variety store and movie rentals.
In the 2021 Census of Population conducted by Statistics Canada, St. Joseph had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of 127.65km2, it had a population density of in 2021.[2]