About St. Catharines
St. Catharines is a city located in Canada, in the Ontario region. According to the latest available data (2026), the population of St. Catharines is approximately 136,803 residents, making it the #85 most populous city in Canada.
Globally, St. Catharines ranks #12,156 among the world's most populated cities.
St. Catharines City Statistics
| City | St. Catharines |
| Country |  Canada |
| Population | 136,803 |
| Global Rank | #12,156 |
| Rank in Canada | #85 of 115 cities |
| City Category | city |
| Region | Ontario |
| Latitude | 43.1833 |
| Longitude | -79.2333 |
| Data Year | 2026 |
Where is St. Catharines Located?
St. Catharines is located in Canada, in the Ontario region, at coordinates 43.1833° latitude and -79.2333° longitude. Located in the mid-latitudes, St. Catharines experiences distinct four-season weather patterns.
Nearby Cities
Other Cities in Canada
Largest Cities in Canada
| # | City | Population |
|---|---|---|
| 1 | Lower Mainland | 2,524,113 |
| 2 | Urban agglomeration of Montreal | 2,004,265 |
| 3 | Montreal | 1,895,211 |
| 4 | National Capital Region | 1,488,307 |
| 5 | Montérégie | 1,460,933 |
Frequently Asked Questions
What is the population of St. Catharines?
The population of St. Catharines is approximately 136,803 residents according to the latest available data (2026).
Where is St. Catharines located?
St. Catharines is located in Canada at approximately 43.1833° latitude and -79.2333° longitude.
Is St. Catharines one of the largest cities in Canada?
With a population of 136,803, St. Catharines is one of the notable urban areas in Canada. It ranks #85 out of 115 cities in the country.
