About San Sebastián
San Sebastián is a city located in Peru, in the Cusco Department region. According to the latest available data (2026), the population of San Sebastián is approximately 109,915 residents, making it the #128 most populous city in Peru.
Globally, San Sebastián ranks #14,476 among the world's most populated cities.
San Sebastián City Statistics
| City | San Sebastián |
| Country |  Peru |
| Population | 109,915 |
| Global Rank | #14,476 |
| Rank in Peru | #128 of 134 cities |
| City Category | city |
| Region | Cusco Department |
| Latitude | -13.5314 |
| Longitude | -71.9314 |
| Data Year | 2026 |
Where is San Sebastián Located?
San Sebastián is located in Peru, in the Cusco Department region, at coordinates -13.5314° latitude and -71.9314° longitude. San Sebastián is located in the southern subtropics.
Nearby Cities
Other Cities in Peru
Largest Cities in Peru
| # | City | Population |
|---|---|---|
| 2 | Trujillo | 1,148,668 |
| 3 | San Juan de Lurigancho | 1,117,629 |
| 4 | Arequipa Province | 1,080,635 |
| 5 | Arequipa | 1,008,290 |
| 6 | Trujillo province | 970,016 |
Frequently Asked Questions
What is the population of San Sebastián?
The population of San Sebastián is approximately 109,915 residents according to the latest available data (2026).
Where is San Sebastián located?
San Sebastián is located in Peru at approximately -13.5314° latitude and -71.9314° longitude.
Is San Sebastián one of the largest cities in Peru?
With a population of 109,915, San Sebastián is one of the notable urban areas in Peru. It ranks #128 out of 134 cities in the country.
