San Sebastiano Population 2026
San Sebastiano has a population of 23,228, making it the #359 biggest city in 🇮🇹 Italy, located in Lombardy. It is about 100× smaller than Rome, the country's biggest city.
Population (city proper)
23,228
Rank in Italy
#359
Coordinates
45.65°N, 10.26°E
~460 m elevation · Europe/Rome
Distance to capital (Rome)
456 km
283 miles, straight line
Other big cities in Lombardy
| City | Population | Rank in Italy |
|---|---|---|
| Milan | 1,371,498 | #2 |
| Brescia | 200,423 | #15 |
| Monza | 124,398 | #30 |
| Bergamo | 121,200 | #32 |
| Como | 84,808 | #57 |
| Busto Arsizio | 83,405 | #58 |
| Sesto San Giovanni | 81,822 | #59 |
| Varese | 80,588 | #64 |
Cities near San Sebastiano
- Lumezzane23,712 people · ~1 km away
- Brescia200,423 people · ~13 km away
- Palazzolo sull'Oglio17,973 people · ~29 km away
- Desenzano del Garda22,665 people · ~30 km away
- Castiglione delle Stiviere18,530 people · ~34 km away
- Seriate23,552 people · ~42 km away
FAQ
What is the population of San Sebastiano?
San Sebastiano has a population of 23,228 (city proper, latest official figure via GeoNames), making it the #359 biggest city in Italy.
What region is San Sebastiano in?
San Sebastiano is located in Lombardy, Italy.
Is San Sebastiano the capital of Italy?
No, the capital of Italy is Rome, about 456 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.