Acilia-Castel Fusano-Ostia Antica Population 2026
Acilia-Castel Fusano-Ostia Antica has a population of 129,362, making it the #28 biggest city in 🇮🇹 Italy, located in Lazio. Roughly 0.2% of Italy's population lives here. It is about 18× smaller than Rome, the country's biggest city.
Population (city proper)
129,362
Rank in Italy
#28
Coordinates
41.76°N, 12.33°E
~5 m elevation · Europe/Rome
Distance to capital (Rome)
21 km
13 miles, straight line
Other big cities in Lazio
| City | Population | Rank in Italy |
|---|---|---|
| Rome | 2,318,895 | #1 |
| Guidonia Montecelio | 89,165 | #52 |
| Lido di Ostia | 85,301 | #56 |
| Latina | 76,305 | #70 |
| Aprilia | 74,977 | #73 |
| Velletri | 52,911 | #123 |
| Nettuno | 49,873 | #135 |
| Civitavecchia | 47,543 | #142 |
Cities near Acilia-Castel Fusano-Ostia Antica
- Lido di Ostia85,301 people · ~6 km away
- Rome2,318,895 people · ~21 km away
- Aprilia74,977 people · ~33 km away
- Velletri52,911 people · ~38 km away
- Guidonia Montecelio89,165 people · ~41 km away
- Nettuno49,873 people · ~44 km away
FAQ
What is the population of Acilia-Castel Fusano-Ostia Antica?
Acilia-Castel Fusano-Ostia Antica has a population of 129,362 (city proper, latest official figure via GeoNames), making it the #28 biggest city in Italy.
What region is Acilia-Castel Fusano-Ostia Antica in?
Acilia-Castel Fusano-Ostia Antica is located in Lazio, Italy.
Is Acilia-Castel Fusano-Ostia Antica the capital of Italy?
No, the capital of Italy is Rome, about 21 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.