Castelar Population 2026
Castelar has a population of 107,786, making it the #37 biggest city in 🇦🇷 Argentina, located in Buenos Aires. Roughly 0.2% of Argentina's population lives here. It is about 27× smaller than Buenos Aires, the country's biggest city.
Population (city proper)
107,786
Rank in Argentina
#37
Coordinates
34.65°S, 58.64°W
~25 m elevation · America/Argentina/Buenos_Aires
Distance to capital (Buenos Aires)
24 km
15 miles, straight line
Other big cities in Buenos Aires
| City | Population | Rank in Argentina |
|---|---|---|
| Mar del Plata | 593,337 | #4 |
| Bahía Blanca | 299,101 | #10 |
| Merlo | 268,961 | #12 |
| Quilmes | 262,379 | #13 |
| José C. Paz | 230,208 | #18 |
| La Plata | 195,443 | #20 |
| Berazategui | 180,523 | #21 |
| San Miguel | 168,762 | #24 |
Cities near Castelar
- Morón99,066 people · ~2 km away
- Haedo37,745 people · ~5 km away
- El Palomar59,031 people · ~5 km away
- San Antonio de Padua37,745 people · ~5 km away
- Villa Sarmiento17,481 people · ~7 km away
- Hurlingham60,000 people · ~7 km away
FAQ
What is the population of Castelar?
Castelar has a population of 107,786 (city proper, latest official figure via GeoNames), making it the #37 biggest city in Argentina.
What region is Castelar in?
Castelar is located in Buenos Aires, Argentina.
Is Castelar the capital of Argentina?
No, the capital of Argentina is Buenos Aires, about 24 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.
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